refactor(diagnostics): remove bug report breadcrumbs

ci(apple): add Xcode Cloud post-clone script
Xcode Cloud only checks out the repo, so ci_post_clone.sh installs swiftlint, xcodegen and bun, downloads the prebuilt core (vnidrop.xcframework + Vnidrop.swift) from the matching GitHub Release asset, and generates the project via localization, version/app config codegen and xcodegen. Rust is never built on Xcode Cloud.
2026-08-05 10:29:58 +02:00 · 2026-08-02 19:18:18 +02:00 · 2026-08-02 10:29:46 +02:00 · 2026-08-02 10:29:45 +02:00 · 2026-08-02 10:03:29 +02:00 · 2026-08-02 10:03:12 +02:00
68 changed files with 647 additions and 3049 deletions
--- a/10
+++ b/10
@@ -12,7 +12,7 @@ include $(ROOT)/make/release.mk
 .PHONY: format test check check-rust audit-rust test-rust test-rust-all
 .PHONY: test-rust-transfer test-rust-approval test-rust-lifecycle test-rust-output-sink
 .PHONY: check-shared test-shared test-android-host check-android verify-android-libs build-android run-desktop
-.PHONY: apple-core apple-version-config apple-project open-apple-project open-apple build-apple-macos build-apple-ios check-apple package-apple-core
+.PHONY: apple-core apple-version-config apple-app-config apple-project open-apple-project open-apple build-apple-macos build-apple-ios check-apple package-apple-core
 .PHONY: prepare-release check-version check-release check-localization localization localization-migrate
 .PHONY: check-docs run-docs check-diagnostics run-diagnostics diagnostics-db-local diagnostics-db-remote diagnostics-typegen deploy-diagnostics

@@ -71,8 +71,9 @@ check-version: ## Validate the canonical version and its platform mappings.
 	cd $(ROOT) && $(GRADLE) verifyVersion $(GRADLE_FLAGS)

 check-release: ## Validate coordinated release scripts and workflow YAML.
-	cd $(ROOT) && bash -n apple/scripts/notarize.sh apple/scripts/sign-exported-app.sh apple/scripts/tests/test-notarize.sh apple/scripts/tests/test-sign-exported-app.sh packaging/android/build-release.sh packaging/android/verify-apk-signature.sh packaging/android/tests/test_verify_apk_signature.sh packaging/release/assemble-release.sh packaging/release/test-assemble-release.sh packaging/release/test-release-config.sh
+	cd $(ROOT) && bash -n apple/scripts/notarize.sh apple/scripts/sign-exported-app.sh apple/scripts/tests/test-notarize.sh apple/scripts/tests/test-sign-exported-app.sh apple/scripts/generate-appconfig.sh apple/scripts/tests/test-generate-appconfig.sh packaging/android/build-release.sh packaging/android/verify-apk-signature.sh packaging/android/tests/test_verify_apk_signature.sh packaging/release/assemble-release.sh packaging/release/test-assemble-release.sh packaging/release/test-release-config.sh
 	cd $(ROOT) && apple/scripts/tests/test-notarize.sh
+	cd $(ROOT) && apple/scripts/tests/test-generate-appconfig.sh
 	cd $(ROOT) && apple/scripts/tests/test-sign-exported-app.sh
 	cd $(ROOT) && packaging/android/tests/test_verify_apk_signature.sh
 	cd $(ROOT) && packaging/release/test-assemble-release.sh
@@ -135,7 +136,10 @@ apple-core: ## Build the Rust XCFramework and generated Swift bindings.
 apple-version-config: ## Generate derived Store and Direct Apple build settings.
 	cd $(ROOT) && packaging/version/generate-apple-xcconfig.sh all

-apple-project: apple-core localization apple-version-config ## Generate the native Apple Xcode project.
+apple-app-config: ## Generate AppConfig.swift from the shared app.properties.
+	cd $(ROOT) && apple/scripts/generate-appconfig.sh
+
+apple-project: apple-core localization apple-version-config apple-app-config ## Generate the native Apple Xcode project.
 	cd $(ROOT)/apple && $(XCODEGEN) generate

 open-apple-project: apple-project ## Generate and open the native Apple Xcode project.
--- a/README.md
+++ b/README.md
@@ -127,18 +127,18 @@ people, especially when using **Anyone with this transfer**.
 - Native SwiftUI apps on iOS, iPadOS, and macOS; Compose apps on Android,
  Windows, and Linux
 - Strict custom HTTPS relay profiles with safe apply and rollback
- Opt-in diagnostics with transfer contents, invitations, and file paths
-  excluded
+- Optional user-submitted bug reports with transfer contents, invitations, and
+  file paths excluded

 ## Privacy by design

- **No hosted transfer copy.** VniDrop does not upload file contents to its
-  diagnostics service or a VniDrop storage bucket.
+- **No hosted transfer copy.** VniDrop does not upload file contents to a bug-report
+  service or a VniDrop storage bucket.
 - **Encrypted in transit.** Iroh connections are authenticated and encrypted
  end to end, including when a relay is needed.
 - **Local control.** Transfer history and sharing state stay on the device.
 - **Sensitive invitations.** An invitation can grant access, so it is
-  deliberately excluded from product logs and diagnostics.
+  deliberately excluded from product logs and bug reports.
 - **Explicit access.** Approval is required by default, and stopping a share
  removes access immediately.

--- a/app.properties
+++ b/app.properties
@@ -0,0 +1,4 @@
+# Public, app-wide configuration shared by every platform (Apple + KMP).
+# Plain KEY=VALUE so it is parsed identically by shell, Gradle, and codegen.
+# Injected into the apps at build time — never hardcode these values in app code.
+PRIVACY_POLICY_URL=https://vnidrop.sudosy.fr/privacy/
--- a/apple/README.md
+++ b/apple/README.md
@@ -114,7 +114,7 @@ The Rust core (iroh network stack) links `SystemConfiguration`, `Security`, and
 Screens mirror the Compose UI in `shared/`. Two deliberate simplifications:
 - Empty-state Lottie animations are rendered as SF Symbols (no `lottie-ios`
  dependency); swap in `lottie-ios` if exact-parity animation is required.
- The full diagnostics/telemetry stack (`diagnostics/*`) is stubbed behind
-  `BugReportService` / `DiagnosticsBuildConfig` and lands in a later phase; the UI
-  hides the diagnostics toggle when not compiled in.
+- Bug reporting is stubbed behind `BugReportService` (`NoopBugReportService`) and
+  a real transport lands in a later phase. There is no telemetry or crash
+  auto-reporting.
 ```
--- a/apple/Tests/AppConfigTests.swift
+++ b/apple/Tests/AppConfigTests.swift
@@ -0,0 +1,39 @@
+import XCTest
+@testable import VniDrop
+
+/// Verifies the build-time `AppConfig` (generated from the shared `app.properties`)
+/// exposes the expected, well-formed values to the app.
+final class AppConfigTests: XCTestCase {
+	func testPrivacyPolicyURLIsTheExpectedHTTPSEndpoint() {
+		let url = AppConfig.privacyPolicyURL
+		XCTAssertEqual(url.scheme, "https", "Privacy policy URL must be https")
+		XCTAssertEqual(url.absoluteString, "https://vnidrop.sudosy.fr/privacy/")
+	}
+
+	func testPrivacyPolicyURLMatchesTheSharedConfigFile() throws {
+		// Cross-check the generated constant against the single source of truth so a
+		// broken generator (or drift) is caught, not just a hardcoded copy.
+		let expected = try Self.privacyURLFromAppProperties()
+		XCTAssertEqual(AppConfig.privacyPolicyURL.absoluteString, expected)
+	}
+
+	/// Reads `PRIVACY_POLICY_URL` from the repo's `app.properties` by walking up
+	/// from this source file's location to the repository root.
+	private static func privacyURLFromAppProperties() throws -> String {
+		var dir = URL(fileURLWithPath: #filePath).deletingLastPathComponent()
+		for _ in 0..<8 {
+			let candidate = dir.appendingPathComponent("app.properties")
+			if FileManager.default.fileExists(atPath: candidate.path) {
+				let contents = try String(contentsOf: candidate, encoding: .utf8)
+				for line in contents.split(whereSeparator: \.isNewline) {
+					if line.hasPrefix("PRIVACY_POLICY_URL=") {
+						return String(line.dropFirst("PRIVACY_POLICY_URL=".count))
+					}
+				}
+				throw XCTSkip("PRIVACY_POLICY_URL missing in \(candidate.path)")
+			}
+			dir.deleteLastPathComponent()
+		}
+		throw XCTSkip("app.properties not found from \(#filePath)")
+	}
+}
--- a/apple/Tests/SettingsModelTests.swift
+++ b/apple/Tests/SettingsModelTests.swift
@@ -15,8 +15,7 @@ final class SettingsModelTests: XCTestCase {
 			preferences: preferences,
 			notifications: LocalNotificationService(),
 			messages: UiMessageController(),
-			bugReports: NoopBugReportService(),
-			diagnosticsIncluded: false
+			bugReports: NoopBugReportService()
 		)
 	}

--- a/apple/VniDrop/App/AppGraph.swift
+++ b/apple/VniDrop/App/AppGraph.swift
@@ -24,8 +24,7 @@ final class AppGraph: ObservableObject {
 			fallback: AppPreferencesDefaults(
 				username: dependencies.environment.defaultUsername,
 				receiveFolder: dependencies.fileSystemService.defaultReceiveFolder(),
-				themeMode: .system,
-				diagnosticsEnabled: false
+				themeMode: .system
 			)
 		)
 		self.approvalCoordinator = ApprovalCoordinator(
--- a/apple/VniDrop/Core/AppPreferences.swift
+++ b/apple/VniDrop/Core/AppPreferences.swift
@@ -120,7 +120,6 @@ struct AppPreferences: Equatable {
 	var username: String
 	var receiveFolder: ReceiveFolder
 	var themeMode: ThemeMode
-	var diagnosticsEnabled: Bool
 	var diagnosticsInstallId: String
 	var relayConfiguration: RelayConfiguration
 }
@@ -129,7 +128,6 @@ struct AppPreferencesDefaults {
 	let username: String
 	let receiveFolder: ReceiveFolder
 	let themeMode: ThemeMode
-	var diagnosticsEnabled: Bool = false
 }

@MainActor
@@ -145,7 +143,6 @@ final class AppPreferencesRepository: ObservableObject {
 		static let receiveFolderValue = "receive_folder_value"
 		static let receiveFolderDisplayName = "receive_folder_display_name"
 		static let themeMode = "theme_mode"
-		static let diagnosticsEnabled = "diagnostics_enabled"
 		static let diagnosticsInstallId = "diagnostics_install_id"
 		static let relayConfiguration = "relay_configuration"
 	}
@@ -160,13 +157,11 @@ final class AppPreferencesRepository: ObservableObject {
 		let username = (defaults.string(forKey: Key.username)).flatMap { $0.isEmpty ? nil : $0 } ?? fallback.username
 		let folder = resolveReceiveFolder(defaults, fallback: fallback.receiveFolder)
 		let themeMode = defaults.string(forKey: Key.themeMode).flatMap(ThemeMode.init(rawValue:)) ?? fallback.themeMode
-		let diagnostics = defaults.object(forKey: Key.diagnosticsEnabled) as? Bool ?? fallback.diagnosticsEnabled
 		let installId = defaults.string(forKey: Key.diagnosticsInstallId) ?? ""
 		return AppPreferences(
 			username: username,
 			receiveFolder: folder,
 			themeMode: themeMode,
-			diagnosticsEnabled: diagnostics,
 			diagnosticsInstallId: installId,
 			relayConfiguration: resolveRelayConfiguration(defaults)
 		)
@@ -219,11 +214,6 @@ final class AppPreferencesRepository: ObservableObject {
 		reload()
 	}

-	func setDiagnosticsEnabled(_ enabled: Bool) {
-		defaults.set(enabled, forKey: Key.diagnosticsEnabled)
-		reload()
-	}
-
 	func setRelayConfiguration(_ configuration: RelayConfiguration) {
 		guard let encoded = try? JSONEncoder().encode(configuration) else { return }
 		defaults.set(encoded, forKey: Key.relayConfiguration)
--- a/apple/VniDrop/Features/Settings/BugReportService.swift
+++ b/apple/VniDrop/Features/Settings/BugReportService.swift
@@ -24,8 +24,3 @@ struct NoopBugReportService: BugReportService {
 	}
 	func previewLogBytes() async -> Int { 0 }
 }
-
-/// Whether the diagnostics stack is compiled in (mirrors DiagnosticsBuildConfig).
-enum DiagnosticsBuildConfig {
-	static let included = false
-}
--- a/apple/VniDrop/Features/Settings/SettingsModel.swift
+++ b/apple/VniDrop/Features/Settings/SettingsModel.swift
@@ -44,7 +44,6 @@ struct SettingsState: Equatable {
 	var supportsCustomReceiveFolders = true
 	var themeMode: ThemeMode = .system
 	var notificationPermission: NotificationPermission = .notDetermined
-	var diagnosticsEnabled = false
 	var relayMode: RelayPreferenceMode = .automatic
 	var relayURLs: [String] = []
 	var relayValidationError: RelayConfigurationValidationError?
@@ -76,7 +75,7 @@ struct SettingsState: Equatable {
 			&& lhs.supportsCustomReceiveFolders == rhs.supportsCustomReceiveFolders
 			&& lhs.themeMode == rhs.themeMode
 			&& lhs.notificationPermission == rhs.notificationPermission
-			&& lhs.diagnosticsEnabled == rhs.diagnosticsEnabled && lhs.appVersion == rhs.appVersion
+			&& lhs.appVersion == rhs.appVersion
 			&& lhs.relayMode == rhs.relayMode && lhs.relayURLs == rhs.relayURLs
 			&& lhs.relayValidationError == rhs.relayValidationError
 			&& lhs.relayConfigurationIsDirty == rhs.relayConfigurationIsDirty
@@ -111,7 +110,6 @@ final class SettingsModel: ObservableObject {
 	private let notifications: LocalNotificationService
 	private let messages: UiMessageController
 	private let bugReports: BugReportService
-	private let diagnosticsIncluded: Bool

 	private var usernamePersistTask: Task<Void, Never>?
 	private var hasLocalUsernameDraft = false
@@ -126,8 +124,7 @@ final class SettingsModel: ObservableObject {
 		preferences: AppPreferencesRepository,
 		notifications: LocalNotificationService,
 		messages: UiMessageController,
-		bugReports: BugReportService,
-		diagnosticsIncluded: Bool = DiagnosticsBuildConfig.included
+		bugReports: BugReportService
 	) {
 		self.environment = environment
 		self.deviceInfoProvider = deviceInfoProvider
@@ -137,7 +134,6 @@ final class SettingsModel: ObservableObject {
 		self.notifications = notifications
 		self.messages = messages
 		self.bugReports = bugReports
-		self.diagnosticsIncluded = diagnosticsIncluded
 		self.state = SettingsState(
 			supportsCustomReceiveFolders: fileSystemService.supportsCustomReceiveFolders,
 			appVersion: environment.appVersion
@@ -151,7 +147,6 @@ final class SettingsModel: ObservableObject {
 				self.state.username = self.hasLocalUsernameDraft ? self.state.username : prefs.username
 				self.state.receiveFolder = folder
 				self.state.themeMode = prefs.themeMode
-				self.state.diagnosticsEnabled = prefs.diagnosticsEnabled
 				if !self.hasRelayConfigurationDraft {
 					self.state.relayMode = prefs.relayConfiguration.mode
 					self.state.relayURLs = prefs.relayConfiguration.relayURLs
@@ -230,17 +225,6 @@ final class SettingsModel: ObservableObject {
 		}
 	}

-	func setDiagnosticsEnabled(_ enabled: Bool) {
-		if !diagnosticsIncluded { return }
-		Task {
-			preferences.setDiagnosticsEnabled(enabled)
-			messages.show(UiMessage(
-				text: .resource(enabled ? L10n.Diagnostics.enabledMessage : L10n.Diagnostics.disabledMessage),
-				tone: .success
-			))
-		}
-	}
-
 	// MARK: - Network

 	func setRelayMode(_ mode: RelayPreferenceMode) {
--- a/apple/VniDrop/Features/Settings/SettingsSections.swift
+++ b/apple/VniDrop/Features/Settings/SettingsSections.swift
@@ -375,7 +375,7 @@ struct StorageSettings: View {
 struct AboutSettings: View {
 	@ObservedObject var model: SettingsModel

-	private static let privacyPolicyURL = URL(string: "https://github.com/vnidrop/vnidrop")!
+	private static let privacyPolicyURL = AppConfig.privacyPolicyURL

 	var body: some View {
 		Section {
@@ -415,17 +415,6 @@ struct AboutSettings: View {
 				Label(String(localized: L10n.About.privacyPolicyLabel), systemSymbol: .handRaised)
 			}
 		}
-
-		if DiagnosticsBuildConfig.included {
-			Section {
-				Toggle(isOn: Binding(
-					get: { model.state.diagnosticsEnabled },
-					set: { model.setDiagnosticsEnabled($0) }
-				)) {
-					Text(String(localized: L10n.Diagnostics.title))
-				}
-			}
-		}
 	}
 }

--- a/apple/VniDrop/Resources/AppIcon.icon/icon.json
+++ b/apple/VniDrop/Resources/AppIcon.icon/icon.json
@@ -1,62 +1,57 @@
 {
-	"fill": {
-		"linear-gradient": [
-			"extended-gray:1.00000,1.00000",
-			"display-p3:0.55433,0.59923,0.92884,1.00000"
-		]
-	},
-	"groups": [
-		{
-			"blend-mode": "normal",
-			"blur-material": null,
-			"layers": [
-				{
-					"image-name": "Mask.svg",
-					"name": "Mask"
-				}
-			],
-			"lighting": "individual",
-			"refractivity": {
-				"depth": 0.5,
-				"enabled": true,
-				"strength": 0
-			},
-			"shadow": {
-				"kind": "neutral",
-				"opacity": 0.6
-			},
-			"specular": true,
-			"translucency": {
-				"enabled": true,
-				"value": 0.8
-			}
-		},
-		{
-			"layers": [
-				{
-					"image-name": "Drop.svg",
-					"name": "Drop"
-				},
-				{
-					"image-name": "U.svg",
-					"name": "U"
-				}
-			],
-			"lighting": "combined",
-			"shadow": {
-				"kind": "neutral",
-				"opacity": 0.6
-			},
-			"translucency": {
-				"enabled": true,
-				"value": 0.4
-			}
-		}
-	],
-	"supported-platforms": {
-		"circles": [
-			"watchOS"
-		],
-		"squares": "shared"
-	}
-}
+  "fill" : {
+    "linear-gradient" : [
+      "extended-gray:1.00000,1.00000",
+      "srgb:0.84942,0.81480,0.95401,1.00000"
+    ]
+  },
+  "groups" : [
+    {
+      "blend-mode" : "normal",
+      "blur-material" : null,
+      "layers" : [
+        {
+          "image-name" : "Mask.svg",
+          "name" : "Mask"
+        }
+      ],
+      "lighting" : "individual",
+      "shadow" : {
+        "kind" : "neutral",
+        "opacity" : 0.6
+      },
+      "specular" : true,
+      "translucency" : {
+        "enabled" : true,
+        "value" : 0.8
+      }
+    },
+    {
+      "layers" : [
+        {
+          "image-name" : "Drop.svg",
+          "name" : "Drop"
+        },
+        {
+          "image-name" : "U.svg",
+          "name" : "U"
+        }
+      ],
+      "lighting" : "combined",
+      "shadow" : {
+        "kind" : "layer-color",
+        "opacity" : 0.8
+      },
+      "translucency" : {
+        "enabled" : true,
+        "value" : 0.4
+      }
+    }
+  ],
+  "supported-platforms" : {
+    "circles" : [
+      "watchOS"
+    ],
+    "squares" : "shared"
+  }
+}
--- a/apple/scripts/build-core.sh
+++ b/apple/scripts/build-core.sh
@@ -44,6 +44,13 @@ export MACOSX_DEPLOYMENT_TARGET="${MACOSX_DEPLOYMENT_TARGET:-15.0}"
 # This never touches the Rust crate — it only changes how the build is invoked.
 export CARGO_PROFILE_DEV_STRIP=none

+# The workspace `[profile.release] lto = "thin"` corrupts host proc-macro / build
+# script dylibs when cross-compiling ("mis-aligned LINKEDIT string pool"). Cargo
+# forbids overriding `lto` per build-override, so disable thin LTO for the whole
+# release build here — the crate is still fully optimized (opt-level 3, debuginfo
+# stripped), which is what shrinks the static lib. This never edits the Cargo crate.
+export CARGO_PROFILE_RELEASE_LTO=false
+
 IOS_TARGET="aarch64-apple-ios"
 SIM_ARM_TARGET="aarch64-apple-ios-sim"
 SIM_X64_TARGET="x86_64-apple-ios"
--- a/apple/scripts/generate-appconfig.sh
+++ b/apple/scripts/generate-appconfig.sh
@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+# Generates apple/VniDrop/Generated/AppConfig.swift from the shared app.properties
+# so app-wide constants (privacy policy URL, …) have a single source of truth
+# across Apple and KMP. Regenerate instead of editing the output.
+
+set -euo pipefail
+
+script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+repo_root="$(cd "$script_dir/../.." && pwd)"
+config_file="${VNIDROP_APP_PROPERTIES:-$repo_root/app.properties}"
+output_dir="${VNIDROP_APPLE_GENERATED_DIR:-$repo_root/apple/VniDrop/Generated}"
+
+read_property() {
+	local key=$1
+	local value
+	value="$(sed -n "s/^${key}=//p" "$config_file")"
+	[[ -n "$value" ]] || { printf 'Missing %s in %s\n' "$key" "$config_file" >&2; exit 1; }
+	[[ $(printf '%s\n' "$value" | wc -l | tr -d ' ') == 1 ]] ||
+		{ printf 'Duplicate %s in %s\n' "$key" "$config_file" >&2; exit 1; }
+	printf '%s' "$value"
+}
+
+# Escape for a Swift string literal.
+swift_escape() {
+	printf '%s' "$1" | sed -e 's/\\/\\\\/g' -e 's/"/\\"/g'
+}
+
+privacy_url="$(read_property PRIVACY_POLICY_URL)"
+
+mkdir -p "$output_dir"
+tmp="$(mktemp "$output_dir/.AppConfig.swift.XXXXXX")"
+cat > "$tmp" <<EOF
+// Generated by apple/scripts/generate-appconfig.sh from app.properties.
+// Regenerate this file instead of editing it.
+
+import Foundation
+
+/// App-wide constants injected at build time from the shared \`app.properties\`.
+enum AppConfig {
+	static let privacyPolicyURL = URL(string: "$(swift_escape "$privacy_url")")!
+}
+EOF
+mv "$tmp" "$output_dir/AppConfig.swift"
--- a/apple/scripts/tests/test-generate-appconfig.sh
+++ b/apple/scripts/tests/test-generate-appconfig.sh
@@ -0,0 +1,59 @@
+#!/usr/bin/env bash
+
+# Tests apple/scripts/generate-appconfig.sh: the shared app.properties is read
+# correctly, values are emitted as valid escaped Swift, and a missing key fails.
+
+set -euo pipefail
+
+script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+generator="$script_dir/../generate-appconfig.sh"
+repo_root="$(cd "$script_dir/../../.." && pwd)"
+scratch="$(mktemp -d)"
+trap 'rm -rf "$scratch"' EXIT
+
+# Run the generator against a fixture app.properties, emitting into a temp dir.
+generate() {
+	VNIDROP_APP_PROPERTIES="$scratch/app.properties" \
+		VNIDROP_APPLE_GENERATED_DIR="$scratch/out" \
+		"$generator"
+}
+
+expect_failure() {
+	if "$@" >/dev/null 2>&1; then
+		printf 'Expected command to fail: %s\n' "$*" >&2
+		exit 1
+	fi
+}
+
+assert_contains() {
+	local file=$1 needle=$2
+	grep -qF "$needle" "$file" ||
+		{ printf 'Expected %s to contain: %s\n' "$file" "$needle" >&2; exit 1; }
+}
+
+out="$scratch/out/AppConfig.swift"
+
+# 1. Nominal value is emitted verbatim as a Swift URL literal.
+printf 'PRIVACY_POLICY_URL=%s\n' 'https://example.test/privacy/' > "$scratch/app.properties"
+generate
+assert_contains "$out" 'URL(string: "https://example.test/privacy/")!'
+assert_contains "$out" 'enum AppConfig'
+
+# 2. Characters special to a Swift string literal are escaped.
+printf 'PRIVACY_POLICY_URL=%s\n' 'https://a.test/"q"\z' > "$scratch/app.properties"
+generate
+assert_contains "$out" 'URL(string: "https://a.test/\"q\"\\z")!'
+
+# 3. A missing key fails instead of emitting an empty value.
+printf 'OTHER_KEY=value\n' > "$scratch/app.properties"
+expect_failure generate
+
+# 4. A duplicated key fails.
+printf 'PRIVACY_POLICY_URL=a\nPRIVACY_POLICY_URL=b\n' > "$scratch/app.properties"
+expect_failure generate
+
+# 5. The real committed app.properties produces an https URL.
+VNIDROP_APPLE_GENERATED_DIR="$scratch/real" "$generator"
+assert_contains "$scratch/real/AppConfig.swift" 'URL(string: "https://'
+
+printf 'generate-appconfig tests passed.\n'
--- a/ci_scripts/README.md
+++ b/ci_scripts/README.md
@@ -0,0 +1,40 @@
+# Xcode Cloud CI scripts
+
+Xcode Cloud runs the scripts in this directory around each build. Only
+`ci_post_clone.sh` is used today; add `ci_pre_xcodebuild.sh` /
+`ci_post_xcodebuild.sh` here if later steps are needed.
+
+## What `ci_post_clone.sh` does
+
+The Xcode project (`apple/VniDrop.xcodeproj`) and its generated inputs are **not**
+committed — they are produced by XcodeGen, localization, and the Rust core build.
+Since Xcode Cloud only checks out the repository, the post-clone script:
+
+1. installs `swiftlint`, `xcodegen`, and `bun`;
+2. **downloads the prebuilt core** (`vnidrop.xcframework` + `Vnidrop.swift`) from
+   the matching GitHub Release asset `VnidropCore-<version>.zip` — Xcode Cloud
+   never builds Rust;
+3. runs localization + version/app config codegen and `xcodegen generate`
+   (equivalent to `make apple-project` without the `apple-core` step).
+
+The core asset for version `X.Y.Z` must be published on the `vX.Y.Z` release
+before an Xcode Cloud build for that version runs (see
+`apple/scripts/package-core.sh` and `.github/workflows/apple-release.yml`).
+
+### Overrides (env vars, optional)
+
+| Variable | Default | Purpose |
+|----------|---------|---------|
+| `VNIDROP_CORE_REPO` | `sudosylabs/vnidrop` | Release repository to download the core from |
+| `VNIDROP_CORE_TAG`  | `v<product-version>` | Release tag holding the core asset |
+
+## Workflow configuration (App Store Connect)
+
+The workflow itself (product, scheme, triggers, actions) is configured in App
+Store Connect, not in the repository. Point it at:
+
+- **Project:** `apple/VniDrop.xcodeproj` (generated by the post-clone script)
+- **Scheme:** `VniDrop` (App Store / TestFlight target; shared, see `apple/project.yml`)
+
+Archive actions use the release Rust profile via the published core asset; build
+and test actions reuse the same prebuilt core.
--- a/ci_scripts/ci_post_clone.sh
+++ b/ci_scripts/ci_post_clone.sh
@@ -0,0 +1,72 @@
+#!/bin/bash
+#
+# Xcode Cloud post-clone step.
+#
+# The Apple Xcode project is generated (XcodeGen) and gitignored, and it links a
+# prebuilt Rust XCFramework plus generated localization/config files. Xcode Cloud
+# only checks out the repository, so this script:
+#   1. installs the non-Rust build tooling (swiftlint, xcodegen, bun);
+#   2. downloads the prebuilt core (vnidrop.xcframework + Vnidrop.swift) from the
+#      matching GitHub Release asset — we never build Rust here;
+#   3. reproduces `make apple-project` minus the Rust `apple-core` step.
+#
+# Xcode Cloud runs this from the `ci_scripts` directory; CI_PRIMARY_REPOSITORY_PATH
+# points at the checked-out repository root.
+set -euo pipefail
+
+REPO_ROOT="${CI_PRIMARY_REPOSITORY_PATH:-$(cd "$(dirname "$0")/.." && pwd)}"
+cd "$REPO_ROOT"
+
+echo "==> Installing build tooling (Homebrew)"
+# swiftlint: enforced by a build phase (fails the build if missing).
+# xcodegen: generates apple/VniDrop.xcodeproj from apple/project.yml.
+brew install swiftlint xcodegen
+
+echo "==> Installing Bun (localization generator)"
+if ! command -v bun >/dev/null 2>&1; then
+	curl -fsSL https://bun.sh/install | bash
+fi
+export BUN_INSTALL="${BUN_INSTALL:-$HOME/.bun}"
+export PATH="$BUN_INSTALL/bin:$PATH"
+
+# --- Prebuilt core: download instead of building Rust -------------------------
+# The Apple core (xcframework + UniFFI bindings) is published as a release asset
+# by apple/scripts/package-core.sh. See docs at the top of that script.
+VERSION="$(packaging/version/resolve-version.sh product)"
+CORE_REPO="${VNIDROP_CORE_REPO:-sudosylabs/vnidrop}"
+CORE_TAG="${VNIDROP_CORE_TAG:-v$VERSION}"
+CORE_ZIP="VnidropCore-$VERSION.zip"
+CORE_BASE_URL="https://github.com/$CORE_REPO/releases/download/$CORE_TAG"
+
+PKG_DIR="$REPO_ROOT/apple/VnidropCore"
+DOWNLOAD_DIR="$(mktemp -d)"
+trap 'rm -rf "$DOWNLOAD_DIR"' EXIT
+
+echo "==> Downloading prebuilt core $CORE_ZIP from $CORE_REPO@$CORE_TAG"
+curl -fsSL "$CORE_BASE_URL/$CORE_ZIP" -o "$DOWNLOAD_DIR/$CORE_ZIP"
+curl -fsSL "$CORE_BASE_URL/$CORE_ZIP.sha256" -o "$DOWNLOAD_DIR/$CORE_ZIP.sha256"
+
+echo "==> Verifying checksum"
+(
+	cd "$DOWNLOAD_DIR"
+	if command -v sha256sum >/dev/null 2>&1; then
+		sha256sum --check "$CORE_ZIP.sha256"
+	else
+		shasum -a 256 --check "$CORE_ZIP.sha256"
+	fi
+)
+
+echo "==> Installing core into apple/VnidropCore"
+unzip -q -o "$DOWNLOAD_DIR/$CORE_ZIP" -d "$DOWNLOAD_DIR/extracted"
+# Zip root holds: vnidrop.xcframework/ and Vnidrop.swift (see package-core.sh).
+rm -rf "$PKG_DIR/vnidrop.xcframework"
+cp -R "$DOWNLOAD_DIR/extracted/vnidrop.xcframework" "$PKG_DIR/vnidrop.xcframework"
+mkdir -p "$PKG_DIR/Sources/VnidropCore"
+cp "$DOWNLOAD_DIR/extracted/Vnidrop.swift" "$PKG_DIR/Sources/VnidropCore/Vnidrop.swift"
+
+# --- Generate the project (everything except the Rust core) -------------------
+echo "==> Generating localization, version/app config, and the Xcode project"
+make localization apple-version-config apple-app-config
+(cd "$REPO_ROOT/apple" && xcodegen generate)
+
+echo "==> ci_post_clone complete"
--- a/docs/app/privacy/page.tsx
+++ b/docs/app/privacy/page.tsx
@@ -3,14 +3,14 @@ import type { Metadata } from "next";
 export const metadata: Metadata = {
  title: "Privacy policy",
  description:
-    "How VniDrop handles transfers, local app data, optional diagnostics, bug reports, and website visits.",
+    "How VniDrop handles transfers, local app data, optional bug reports, and website visits.",
 };

 const sections = [
  ["scope", "Scope"],
  ["transfers", "Transfers"],
  ["local-data", "Local data"],
-  ["diagnostics", "Diagnostics"],
+  ["bug-reports", "Bug reports"],
  ["website", "Website"],
  ["permissions", "Permissions"],
  ["providers", "Service providers"],
@@ -29,9 +29,9 @@ export default function PrivacyPage() {
          <h1>Privacy Policy</h1>
          <p>
            This policy explains what moves between devices, what stays local, and what is sent
-            only when you choose to share diagnostics or a bug report.
+            only when you choose to submit a bug report.
          </p>
-          <p className="privacy-meta">Effective July 16, 2026 · Version 1.1</p>
+          <p className="privacy-meta">Effective August 2, 2026 · Version 1.2</p>
        </div>
      </section>

@@ -56,7 +56,7 @@ export default function PrivacyPage() {
              <p>
                VniDrop has no user accounts and does not upload your transfer to a VniDrop file
                store. Files travel over an authenticated, end-to-end encrypted connection.
-                Product diagnostics are opt-in; a bug report is sent only when you submit one.
+                VniDrop has no telemetry or analytics; a bug report is sent only when you submit one.
              </p>
            </div>

@@ -64,7 +64,7 @@ export default function PrivacyPage() {
              <h2>Scope and who “VniDrop” means</h2>
              <p>
                This policy covers the official VniDrop website, the VniDrop applications for
-                Android, iOS, macOS, Windows, and Linux, and the diagnostics service configured by
+                Android, iOS, macOS, Windows, and Linux, and the bug-report service configured by
                the official project. For an official release, VniDrop’s data controller is the
                individual publisher named in the applicable app-store listing. In this policy,
                “VniDrop,” “we,” and “us” also include the maintainers acting on that publisher’s
@@ -72,7 +72,7 @@ export default function PrivacyPage() {
              </p>
              <p>
                VniDrop is open-source software. A build distributed or operated by someone else
-                may use different networking infrastructure, diagnostics settings, or website
+                may use different networking infrastructure, bug-report settings, or website
                hosting. That distributor is responsible for explaining its own practices.
              </p>
            </section>
@@ -117,9 +117,9 @@ export default function PrivacyPage() {
              <ul>
                <li>device identity and networking keys used to establish secure connections;</li>
                <li>active shares, transfer history, receiver requests, progress, and status;</li>
-                <li>app preferences, including access and diagnostics choices;</li>
+                <li>app preferences, including access choices;</li>
                <li>download destinations and locally managed transfer data; and</li>
-                <li>an anonymous installation identifier used only for diagnostics correlation.</li>
+                <li>an anonymous installation identifier used only for bug-report correlation.</li>
              </ul>
              <p>
                This information remains until you remove the relevant history, stop or delete a
@@ -129,33 +129,27 @@ export default function PrivacyPage() {
              </p>
            </section>

-            <section id="diagnostics" className="policy-section">
-              <h2>Optional diagnostics and bug reports</h2>
-              <h3>Automatic product diagnostics</h3>
+            <section id="bug-reports" className="policy-section">
+              <h2>Optional bug reports</h2>
              <p>
-                Official releases indicate in the app settings whether automatic product
-                diagnostics are included. When included, automatic usage events and crash reports
-                are disabled until you enable “Share diagnostics.” If enabled, VniDrop may send an
-                anonymous installation ID, app version, platform, sparse event names and properties,
-                crash type and message, a redacted stack trace, timestamps, and recent in-app
-                breadcrumbs. You can turn this off at any time; doing so also removes pending local
-                crash reports.
+                VniDrop has no automatic telemetry, usage analytics, or crash auto-reporting.
+                Nothing is sent to a bug-report service unless you explicitly submit a report.
              </p>
              <h3>User-submitted bug reports</h3>
              <p>
-                A bug report is separate from the diagnostics toggle and is sent only when you press
-                submit. It can contain what you say happened, what you expected, reproduction steps,
-                an optional contact email, app and platform versions, an anonymous installation ID,
-                device name and model, operating system, network and battery information, recent
-                breadcrumbs, and optional recent logs. You can exclude logs before submitting.
+                A bug report is sent only when you press submit. It can contain what you say
+                happened, what you expected, reproduction steps, an optional contact email, app and
+                platform versions, an anonymous installation ID, device name and model, operating
+                system, network and battery information, and optional recent logs. You can exclude
+                logs before submitting.
              </p>
              <h3>Data deliberately excluded</h3>
              <p>
-                Automatic diagnostics are designed to exclude transfer contents, invitations, and
-                file paths. Before diagnostic text or optional logs are sent, VniDrop applies rules
-                intended to redact invitation tokens, endpoint identifiers, absolute paths, file and
-                content URIs, and platform document identifiers. No redaction system is perfect, so
-                review anything you type into a bug report and avoid including secrets.
+                Bug reports are designed to exclude transfer contents, invitations, and file paths.
+                Before optional logs are sent, VniDrop applies rules intended to redact invitation
+                tokens, endpoint identifiers, absolute paths, file and content URIs, and platform
+                document identifiers. No redaction system is perfect, so review anything you type
+                into a bug report and avoid including secrets.
              </p>
            </section>

@@ -223,7 +217,7 @@ export default function PrivacyPage() {
                  <dt>Cloudflare</dt>
                  <dd>
                    Proxies website requests and provides DNS, security, and abuse controls. When
-                    the optional diagnostics service is configured, it uses Cloudflare Workers, D1,
+                    the optional bug-report service is configured, it uses Cloudflare Workers, D1,
                    and R2.
                  </dd>
                </div>
@@ -300,11 +294,7 @@ export default function PrivacyPage() {
                      <td>Until you delete them, clear app data, or uninstall</td>
                    </tr>
                    <tr>
-                      <th scope="row">Pending local crash reports</th>
-                      <td>Up to 30 days and 20 reports; deleted when diagnostics is disabled</td>
-                    </tr>
-                    <tr>
-                      <th scope="row">Server diagnostics and bug reports</th>
+                      <th scope="row">Server bug reports</th>
                      <td>The current project configuration is 90 days, with scheduled deletion</td>
                    </tr>
                    <tr>
@@ -317,7 +307,7 @@ export default function PrivacyPage() {
              <p>
                Operational backups, provider logs, and deletion backlogs may persist briefly beyond
                the stated period where necessary for security, integrity, or legal obligations. If
-                the production diagnostics retention configuration changes, this policy should be
+                the production bug-report retention configuration changes, this policy should be
                updated to match it.
              </p>
            </section>
@@ -325,7 +315,6 @@ export default function PrivacyPage() {
            <section id="choices" className="policy-section">
              <h2>Your choices and rights</h2>
              <ul>
-                <li>Enable or disable “Share diagnostics” in VniDrop settings.</li>
                <li>
                  Submit a bug report only when you choose, omit contact information, and exclude
                  logs.
@@ -343,7 +332,7 @@ export default function PrivacyPage() {
              <p>
                Depending on where you live, privacy law may provide rights to access, correct,
                delete, restrict, or object to processing of personal information. Because VniDrop
-                has no account and automatic diagnostics use an anonymous installation ID, we may
+                has no account and bug reports use an anonymous installation ID, we may
                not be able to connect a server record to you without additional information. Use
                the contact method below and provide only what is needed to locate your submission.
              </p>
@@ -353,7 +342,7 @@ export default function PrivacyPage() {
              <h2>Security</h2>
              <p>
                VniDrop uses authenticated end-to-end encrypted connections, content verification,
-                deny-by-default share access, bounded diagnostics payloads, redaction, and safe file
+                deny-by-default share access, bounded bug-report payloads, redaction, and safe file
                publishing that avoids silently replacing an existing file. No system can guarantee
                absolute security. Keep invitations private, verify receiver names, keep your device
                updated, and stop sharing when a transfer is finished.
--- a/gradle.properties
+++ b/gradle.properties
@@ -13,9 +13,8 @@ android.nonTransitiveRClass=true
 android.sourceset.disallowProvider=false
 android.useAndroidX=true

-# VniDrop: compile-time diagnostics/telemetry product surface.
-# false → no Share-diagnostics toggle, no telemetry or crash auto-upload stack.
-# Bug report UI remains available (user-initiated).
+# VniDrop: compile-time bug-report delivery surface.
+# false → user-initiated bug reports fall back to a NoOp transport (never sent).
 # Enable per build only when endpoint and ingest key are configured:
 # ./gradlew … -Pvnidrop.diagnostics.included=true
 vnidrop.diagnostics.included=false
--- a/localization/strings.json
+++ b/localization/strings.json
@@ -1178,62 +1178,6 @@
        "ru": "Имя устройства"
      }
    },
-    "diagnostics_description": {
-      "context": "Settings > Diagnostics: explanation of what anonymous diagnostics collect.",
-      "translations": {
-        "en": "Send anonymous crash reports and usage events so we can improve VniDrop. You can turn this off anytime. Invitations, file paths, and transfer contents are never included.",
-        "fr": "Envoyer des rapports de plantage et des événements d’utilisation anonymes pour nous aider à améliorer VniDrop. Vous pouvez désactiver cela à tout moment. Les invitations, chemins de fichiers et contenus de transfert ne sont jamais inclus.",
-        "es": "Enviar informes de fallos y eventos de uso anónimos para ayudarnos a mejorar VniDrop. Puede desactivarlo en cualquier momento. Las invitaciones, las rutas de archivos y el contenido de las transferencias nunca se incluyen.",
-        "it": "Invia report di arresto anomalo ed eventi d’uso anonimi per aiutarci a migliorare VniDrop. Può disattivarlo in qualsiasi momento. Inviti, percorsi dei file e contenuti dei trasferimenti non vengono mai inclusi.",
-        "de": "Anonyme Absturzberichte und Nutzungsereignisse senden, damit wir VniDrop verbessern können. Sie können dies jederzeit deaktivieren. Einladungen, Dateipfade und Übertragungsinhalte werden niemals einbezogen.",
-        "pt": "Enviar relatórios de falhas e eventos de utilização anónimos para nos ajudar a melhorar o VniDrop. Pode desativar isto a qualquer momento. Convites, caminhos de ficheiros e conteúdos das transferências nunca são incluídos.",
-        "pl": "Wysyłaj anonimowe raporty o awariach i zdarzenia użytkowania, aby pomóc nam ulepszać VniDrop. Możesz to wyłączyć w dowolnej chwili. Zaproszenia, ścieżki plików i zawartość transferów nigdy nie są dołączane.",
-        "nl": "Verstuur anonieme crashrapporten en gebruiksgebeurtenissen zodat we VniDrop kunnen verbeteren. U kunt dit op elk moment uitschakelen. Uitnodigingen, bestandspaden en overdrachtsinhoud worden nooit meegestuurd.",
-        "ru": "Отправлять анонимные отчёты о сбоях и события использования, чтобы помочь нам улучшать VniDrop. Вы можете отключить это в любой момент. Приглашения, пути к файлам и содержимое передач никогда не включаются."
-      }
-    },
-    "diagnostics_disabled_message": {
-      "context": "Settings > Diagnostics: confirmation shown when diagnostics are turned off.",
-      "translations": {
-        "en": "Diagnostics sharing is off.",
-        "fr": "Le partage des diagnostics est désactivé.",
-        "es": "El uso compartido de diagnósticos está desactivado.",
-        "it": "La condivisione dei dati diagnostici è disattivata.",
-        "de": "Die Freigabe von Diagnosedaten ist deaktiviert.",
-        "pt": "A partilha de diagnósticos está desativada.",
-        "pl": "Udostępnianie diagnostyki jest wyłączone.",
-        "nl": "Het delen van diagnostische gegevens is uitgeschakeld.",
-        "ru": "Передача диагностики отключена."
-      }
-    },
-    "diagnostics_enabled_message": {
-      "context": "Settings > Diagnostics: confirmation shown when diagnostics are turned on.",
-      "translations": {
-        "en": "Diagnostics sharing is on.",
-        "fr": "Le partage des diagnostics est activé.",
-        "es": "El uso compartido de diagnósticos está activado.",
-        "it": "La condivisione dei dati diagnostici è attivata.",
-        "de": "Die Freigabe von Diagnosedaten ist aktiviert.",
-        "pt": "A partilha de diagnósticos está ativada.",
-        "pl": "Udostępnianie diagnostyki jest włączone.",
-        "nl": "Het delen van diagnostische gegevens is ingeschakeld.",
-        "ru": "Передача диагностики включена."
-      }
-    },
-    "diagnostics_title": {
-      "context": "Settings > Diagnostics: toggle title.",
-      "translations": {
-        "en": "Share diagnostics",
-        "fr": "Partager les diagnostics",
-        "es": "Compartir diagnósticos",
-        "it": "Condividi dati diagnostici",
-        "de": "Diagnosedaten teilen",
-        "pt": "Partilhar diagnósticos",
-        "pl": "Udostępniaj diagnostykę",
-        "nl": "Diagnostische gegevens delen",
-        "ru": "Делиться диагностикой"
-      }
-    },
    "error_camera": {
      "context": "Error: camera permission is needed to scan a QR code.",
      "translations": {
--- a/services/diagnostics-api/README.md
+++ b/services/diagnostics-api/README.md
@@ -1,13 +1,13 @@
 # VniDrop diagnostics API

-Cloudflare Worker for ingesting batched telemetry, crash reports, and user-submitted
-bug reports. D1 stores searchable metadata; R2 stores larger stack traces and logs.
+Cloudflare Worker for ingesting user-submitted bug reports. D1 stores searchable
+metadata; R2 stores the larger attached logs.

 The service is designed for modest traffic and low operating cost:

- one D1 row is written per telemetry batch, not per event;
- crash stacks and bug logs are stored in R2 instead of D1;
- request and batch limits reject oversized work before storage writes;
+- one D1 row is written per bug report;
+- bug logs are stored in R2 instead of D1;
+- request limits reject oversized work before storage writes;
 - an hourly scheduled cleanup and an R2 lifecycle rule enforce retention;
 - no Queue, Durable Object, or KV resources are required.

@@ -35,15 +35,13 @@ X-VniDrop-Install-Id: <anonymous install UUID>
 |--------|------|------|
 | `GET` | `/live` | process liveness; does not touch storage |
 | `GET` | `/health` | authenticated readiness; checks required configuration and the D1 schema |
-| `POST` | `/v1/events` | `{ batchId, installId, appVersion?, platform?, events: [...] }` |
-| `POST` | `/v1/crashes` | app crash payload |
 | `POST` | `/v1/bugs` | app bug-report payload |

-Batch and report IDs are client-generated UUIDs. A client must reuse the same ID
-when retrying so D1 can acknowledge the request without storing it twice.
+Report IDs are client-generated UUIDs. A client must reuse the same ID when
+retrying so D1 can acknowledge the request without storing it twice.

-Accepted reports return `202`. Defaults are a 262,144-byte request limit and at
-most 50 events per batch. Cloudflare rate-limit bindings allow 30 requests per
+Accepted reports return `202`. The default is a 262,144-byte request limit.
+Cloudflare rate-limit bindings allow 30 requests per
 installation and 120 requests per source, per ingest route, per minute. Source
 limits run before shared-key verification so rejected traffic is bounded too.
 These counters are eventually consistent and local to a Cloudflare location, so
@@ -153,11 +151,11 @@ migrations to the isolated local database assigned to each test file.
 `RETENTION_DAYS` defaults to 90. The `17 * * * *` cron trigger runs cleanup at
 17 minutes past every hour. Cleanup works in bounded batches: it deletes each
 expired report's referenced R2 object before deleting that exact D1 row. The R2
-lifecycle rule is an independent backstop for stack and log objects, including
-objects left behind by a partial ingest failure. Each scheduled run can remove
-8,000 event batches and 7,200 rows from each report table while staying below
-D1's per-invocation query ceiling. Later hourly runs continue any backlog.
-Reaching the cap emits a structured warning with the remaining expired-row counts;
+lifecycle rule is an independent backstop for log objects, including objects left
+behind by a partial ingest failure. Each scheduled run can remove 7,200 bug rows
+while staying below D1's per-invocation query ceiling. Later hourly runs continue
+any backlog.
+Reaching the cap emits a structured warning with the remaining expired-row count;
 alert on that warning because
 retention is necessarily best-effort during sustained distributed abuse.

@@ -179,23 +177,20 @@ vnidrop.diagnostics.ingestKey=<same value as INGEST_KEY>

 Both the endpoint and key are required. When both are empty the app uses its
 offline-safe no-op transport; configuring only one fails the Gradle build.
-`vnidrop.diagnostics.included=false` disables
-automatic telemetry and crash upload, but a configured endpoint can still accept
-an explicit user-submitted bug report. Treat the app-side key as an abuse-control
-token with the limitations described above.
+`vnidrop.diagnostics.included=false` routes bug reports to that no-op transport
+(never sent); a configured endpoint accepts an explicit user-submitted bug report.
+Treat the app-side key as an abuse-control token with the limitations described
+above.

 ## Reading reports

 ```bash
-npx wrangler d1 execute vnidrop-diagnostics --remote \
-  --command "SELECT id, exception_type, platform, occurred_at FROM crashes ORDER BY occurred_at DESC LIMIT 20"
-
 npx wrangler d1 execute vnidrop-diagnostics --remote \
  --command "SELECT id, what_happened, status, occurred_at FROM bugs WHERE status = 'open' ORDER BY occurred_at DESC LIMIT 20"
 ```

-R2 object keys use `crashes/<id>/<attempt-id>/stack.txt` and
-`bugs/<id>/<attempt-id>/logs.txt`. The unique attempt segment prevents a retry
-from overwriting an already accepted object before D1 detects the duplicate.
+R2 object keys use `bugs/<id>/<attempt-id>/logs.txt`. The unique attempt segment
+prevents a retry from overwriting an already accepted object before D1 detects
+the duplicate.
 There is no public administration endpoint; inspect reports through authenticated
 Cloudflare tools or a future Access-protected dashboard.
--- a/services/diagnostics-api/migrations/0003_drop_telemetry_tables.sql
+++ b/services/diagnostics-api/migrations/0003_drop_telemetry_tables.sql
@@ -0,0 +1,10 @@
+-- Telemetry and crash auto-reporting were removed from the app; only user-initiated
+-- bug reports remain. Drop the now-unused ingestion tables and their indexes.
+DROP INDEX IF EXISTS idx_event_batches_received;
+DROP INDEX IF EXISTS idx_event_batches_install;
+DROP TABLE IF EXISTS event_batches;
+
+DROP INDEX IF EXISTS idx_crashes_received;
+DROP INDEX IF EXISTS idx_crashes_fingerprint;
+DROP INDEX IF EXISTS idx_crashes_install;
+DROP TABLE IF EXISTS crashes;
--- a/services/diagnostics-api/src/index.ts
+++ b/services/diagnostics-api/src/index.ts
@@ -1,20 +1,15 @@
 import {
 	normalizeBug,
-	normalizeCrash,
-	normalizeEvents,
 	readJsonObject,
 } from "./input";
 import {
 	type DiagnosticsEnv,
 	runRetention,
 	storeBug,
-	storeCrash,
-	storeEvents,
 } from "./storage";

 const DEFAULT_MAX_BODY_BYTES = 262_144;
 const HARD_MAX_BODY_BYTES = 1_048_576;
-const DEFAULT_MAX_EVENTS = 50;

 export default {
 	async fetch(request: Request, env: DiagnosticsEnv, _ctx: ExecutionContext): Promise<Response> {
@@ -72,41 +67,6 @@ export default {
 			if (!parsed.ok) return json({ error: parsed.error }, parsed.status, requestId);

 			switch (url.pathname) {
-				case "/v1/events": {
-					const maxEvents = boundedPositiveInt(env.MAX_EVENTS_PER_BATCH, DEFAULT_MAX_EVENTS, 1, 100);
-					const normalized = normalizeEvents(parsed.value, maxEvents);
-					if (!normalized.ok) {
-						return json({ error: normalized.error }, normalized.status, requestId);
-					}
-					const result = await storeEvents(normalized.value, env);
-					return json(
-						{
-							ok: true,
-							id: result.id,
-							stored: result.stored,
-							duplicate: result.duplicate,
-						},
-						202,
-						requestId,
-					);
-				}
-				case "/v1/crashes": {
-					const normalized = normalizeCrash(parsed.value);
-					if (!normalized.ok) {
-						return json({ error: normalized.error }, normalized.status, requestId);
-					}
-					const result = await storeCrash(normalized.value, env);
-					return json(
-						{
-							ok: true,
-							id: result.id,
-							fingerprint: result.fingerprint,
-							duplicate: result.duplicate,
-						},
-						202,
-						requestId,
-					);
-				}
 				case "/v1/bugs": {
 					const normalized = normalizeBug(parsed.value);
 					if (!normalized.ok) {
@@ -159,12 +119,6 @@ async function readiness(env: DiagnosticsEnv, requestId: string): Promise<Respon
 	}
 	try {
 		await env.DB.batch([
-			env.DB.prepare(
-				"SELECT id, received_at, install_id, payload_json FROM event_batches LIMIT 1",
-			),
-			env.DB.prepare(
-				"SELECT id, occurred_at, stack_r2_key, breadcrumbs_json FROM crashes LIMIT 1",
-			),
 			env.DB.prepare(
 				"SELECT id, occurred_at, logs_r2_key, device_json FROM bugs LIMIT 1",
 			),
@@ -216,8 +170,8 @@ async function installRateLimited(
 	return !result.success;
 }

-function isIngestPath(path: string): path is "/v1/events" | "/v1/crashes" | "/v1/bugs" {
-	return path === "/v1/events" || path === "/v1/crashes" || path === "/v1/bugs";
+function isIngestPath(path: string): path is "/v1/bugs" {
+	return path === "/v1/bugs";
 }

 async function timingSafeEqual(provided: string, expected: string): Promise<boolean> {
--- a/services/diagnostics-api/src/input.ts
+++ b/services/diagnostics-api/src/input.ts
@@ -8,21 +8,6 @@ export type InputFailure = {

 export type InputResult<T> = { ok: true; value: T } | InputFailure;

-export type NormalizedProperties = Record<string, string>;
-
-export interface NormalizedEvent {
-	name: string;
-	timestampMillis: number;
-	properties: NormalizedProperties;
-	schemaVersion: 1;
-}
-
-export interface NormalizedBreadcrumb {
-	name: string;
-	timestampMillis: number;
-	properties: NormalizedProperties;
-}
-
 export interface NormalizedDevice {
 	deviceName: string;
 	deviceModel: string;
@@ -31,28 +16,6 @@ export interface NormalizedDevice {
 	batteryLevel: string;
 }

-export interface NormalizedEventsPayload {
-	batchId: string;
-	installId: string;
-	appVersion: string;
-	platform: string;
-	events: NormalizedEvent[];
-}
-
-export interface NormalizedCrashPayload {
-	id: string;
-	installId: string;
-	appVersion: string;
-	platform: string;
-	exceptionType: string;
-	exceptionMessage: string;
-	stackTrace: string;
-	occurredAt: number;
-	diagnosticsEnabledAtCapture: boolean;
-	breadcrumbs: NormalizedBreadcrumb[];
-	schemaVersion: 1;
-}
-
 export interface NormalizedBugPayload {
 	id: string;
 	installId: string;
@@ -65,16 +28,12 @@ export interface NormalizedBugPayload {
 	contact: string;
 	logs: string;
 	device: NormalizedDevice;
-	breadcrumbs: NormalizedBreadcrumb[];
 	schemaVersion: 1;
 }

 export const MAX_LOG_BYTES = 192 * 1024;
-export const MAX_BREADCRUMBS_JSON_BYTES = 16_000;
 export const MAX_DEVICE_JSON_BYTES = 4_000;

-const MAX_PROPERTIES = 12;
-const MAX_BREADCRUMBS = 40;
 const MISSING = Symbol("missing");
 const UUID_PATTERN = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
 const UTF8_ENCODER = new TextEncoder();
@@ -164,119 +123,6 @@ export async function readJsonObject(
 	return success(parsed);
 }

-export function normalizeEvents(
-	body: JsonObject,
-	maxEvents = 50,
-): InputResult<NormalizedEventsPayload> {
-	if (!isPlainObject(body)) return failure(400, "invalid_body");
-	if (!Number.isSafeInteger(maxEvents) || maxEvents <= 0) {
-		throw new RangeError("maxEvents must be a positive safe integer");
-	}
-
-	const batchId = idField(body, ["batchId", "batch_id"], "invalid_batch_id");
-	if (!batchId.ok) return batchId;
-	const installId = installIdField(body);
-	if (!installId.ok) return installId;
-	const appVersion = stringField(body, ["appVersion", "app_version"], 40, "invalid_app_version");
-	if (!appVersion.ok) return appVersion;
-	const platform = stringField(body, ["platform"], 40, "invalid_platform");
-	if (!platform.ok) return platform;
-
-	const batchSchema = schemaVersion(body);
-	if (!batchSchema.ok) return batchSchema;
-	const rawEvents = pick(body, ["events"]);
-	if (!Array.isArray(rawEvents)) return failure(400, "invalid_events");
-	if (rawEvents.length === 0) return failure(400, "empty_batch");
-	if (rawEvents.length > maxEvents) return failure(400, "batch_too_large");
-
-	const events: NormalizedEvent[] = [];
-	for (const rawEvent of rawEvents) {
-		const event = normalizeEvent(rawEvent);
-		if (!event.ok) return event;
-		events.push(event.value);
-	}
-
-	return success({
-		batchId: batchId.value,
-		installId: installId.value,
-		appVersion: appVersion.value,
-		platform: platform.value,
-		events,
-	});
-}
-
-export function normalizeCrash(body: JsonObject): InputResult<NormalizedCrashPayload> {
-	if (!isPlainObject(body)) return failure(400, "invalid_body");
-
-	const id = idField(body, ["id"], "invalid_id");
-	if (!id.ok) return id;
-	const installId = installIdField(body);
-	if (!installId.ok) return installId;
-	const appVersion = stringField(body, ["appVersion", "app_version"], 40, "invalid_app_version");
-	if (!appVersion.ok) return appVersion;
-	const platform = stringField(body, ["platform"], 40, "invalid_platform");
-	if (!platform.ok) return platform;
-	const exceptionType = stringField(
-		body,
-		["exceptionType", "exception_type"],
-		120,
-		"invalid_exception_type",
-		true,
-		true,
-	);
-	if (!exceptionType.ok) return exceptionType;
-	const exceptionMessage = stringField(
-		body,
-		["exceptionMessage", "exception_message"],
-		2_000,
-		"invalid_exception_message",
-		true,
-	);
-	if (!exceptionMessage.ok) return exceptionMessage;
-	const stackTrace = stringField(
-		body,
-		["stackTrace", "stack_trace"],
-		32_000,
-		"invalid_stack_trace",
-		true,
-	);
-	if (!stackTrace.ok) return stackTrace;
-	const occurredAt = timestampField(
-		body,
-		["timestampMillis", "timestamp_millis", "occurredAt", "occurred_at"],
-	);
-	if (!occurredAt.ok) return occurredAt;
-	const diagnosticsEnabled = booleanField(
-		body,
-		[
-			"diagnosticsEnabledAtCapture",
-			"diagnostics_enabled_at_capture",
-			"diagnostics_enabled",
-		],
-		"invalid_diagnostics_enabled",
-		true,
-	);
-	if (!diagnosticsEnabled.ok) return diagnosticsEnabled;
-	const version = schemaVersion(body);
-	if (!version.ok) return version;
-	const breadcrumbs = normalizeBreadcrumbs(pick(body, ["breadcrumbs"]));
-	if (!breadcrumbs.ok) return breadcrumbs;
-
-	return success({
-		id: id.value,
-		installId: installId.value,
-		appVersion: appVersion.value,
-		platform: platform.value,
-		exceptionType: exceptionType.value,
-		exceptionMessage: exceptionMessage.value,
-		stackTrace: stackTrace.value,
-		occurredAt: occurredAt.value,
-		diagnosticsEnabledAtCapture: diagnosticsEnabled.value,
-		breadcrumbs: breadcrumbs.value,
-		schemaVersion: version.value,
-	});
-}
-
 export function normalizeBug(body: JsonObject): InputResult<NormalizedBugPayload> {
 	if (!isPlainObject(body)) return failure(400, "invalid_body");

@@ -319,8 +165,6 @@ export function normalizeBug(body: JsonObject): InputResult<NormalizedBugPayload
 	if (!logs.ok) return logs;
 	const device = normalizeDevice(pick(body, ["device"]));
 	if (!device.ok) return device;
-	const breadcrumbs = normalizeBreadcrumbs(pick(body, ["breadcrumbs"]));
-	if (!breadcrumbs.ok) return breadcrumbs;
 	const version = schemaVersion(body);
 	if (!version.ok) return version;

@@ -336,80 +180,10 @@ export function normalizeBug(body: JsonObject): InputResult<NormalizedBugPayload
 		contact: contact.value,
 		logs: includeLogs.value === true ? logs.value : "",
 		device: device.value,
-		breadcrumbs: breadcrumbs.value,
 		schemaVersion: version.value,
 	});
 }

-function normalizeEvent(raw: unknown): InputResult<NormalizedEvent> {
-	if (!isPlainObject(raw)) return failure(400, "invalid_event");
-	const name = stringField(raw, ["name"], 64, "invalid_event", true, true);
-	if (!name.ok) return name;
-	const timestamp = timestampField(raw, ["timestampMillis", "timestamp_millis", "ts"]);
-	if (!timestamp.ok) return failure(400, "invalid_event");
-	const properties = normalizeProperties(pick(raw, ["properties", "props"]), "invalid_event");
-	if (!properties.ok) return properties;
-	const version = schemaVersion(raw);
-	if (!version.ok) return version;
-	return success({
-		name: name.value,
-		timestampMillis: timestamp.value,
-		properties: properties.value,
-		schemaVersion: version.value,
-	});
-}
-
-function normalizeBreadcrumbs(raw: unknown | typeof MISSING): InputResult<NormalizedBreadcrumb[]> {
-	if (raw === MISSING) return success([]);
-	if (!Array.isArray(raw)) return failure(400, "invalid_breadcrumbs");
-
-	const breadcrumbs: NormalizedBreadcrumb[] = [];
-	for (const item of raw.slice(0, MAX_BREADCRUMBS)) {
-		if (!isPlainObject(item)) return failure(400, "invalid_breadcrumbs");
-		const name = stringField(item, ["name"], 64, "invalid_breadcrumbs", true, true);
-		if (!name.ok) return name;
-		const timestamp = timestampField(item, ["timestampMillis", "timestamp_millis", "ts"]);
-		if (!timestamp.ok) return failure(400, "invalid_breadcrumbs");
-		const properties = normalizeProperties(
-			pick(item, ["properties", "props"]),
-			"invalid_breadcrumbs",
-		);
-		if (!properties.ok) return properties;
-
-		breadcrumbs.push({
-			name: name.value,
-			timestampMillis: timestamp.value,
-			properties: properties.value,
-		});
-		if (jsonBytes(breadcrumbs) > MAX_BREADCRUMBS_JSON_BYTES) {
-			breadcrumbs.pop();
-			break;
-		}
-	}
-	return success(breadcrumbs);
-}
-
-function normalizeProperties(
-	raw: unknown | typeof MISSING,
-	error: string,
-): InputResult<NormalizedProperties> {
-	if (raw === MISSING) return success({});
-	if (!isPlainObject(raw)) return failure(400, error);
-
-	const entries: Array<[string, string]> = [];
-	const normalizedKeys = new Set<string>();
-	for (const [key, value] of Object.entries(raw).slice(0, MAX_PROPERTIES)) {
-		if (typeof value !== "string") return failure(400, error);
-		const normalizedKey = truncateUtf8(key, 40);
-		if (normalizedKey.length === 0 || normalizedKeys.has(normalizedKey)) {
-			return failure(400, error);
-		}
-		normalizedKeys.add(normalizedKey);
-		entries.push([normalizedKey, truncateUtf8(value, 128)]);
-	}
-	return success(Object.fromEntries(entries));
-}
-
 function normalizeDevice(raw: unknown | typeof MISSING): InputResult<NormalizedDevice> {
 	if (raw === MISSING) raw = {};
 	if (!isPlainObject(raw)) return failure(400, "invalid_device");
--- a/services/diagnostics-api/src/storage.ts
+++ b/services/diagnostics-api/src/storage.ts
@@ -1,12 +1,7 @@
-import type {
-	NormalizedBugPayload,
-	NormalizedCrashPayload,
-	NormalizedEventsPayload,
-} from "./input";
+import type { NormalizedBugPayload } from "./input";

 export type DiagnosticsEnv = Cloudflare.Env & {
 	INGEST_KEY?: string;
-	AE?: AnalyticsEngineDataset;
 };

 export interface StoreResult {
@@ -15,130 +10,6 @@ export interface StoreResult {
 	stored: number;
 }

-export async function storeEvents(
-	payload: NormalizedEventsPayload,
-	env: DiagnosticsEnv,
-): Promise<StoreResult> {
-	const result = await env.DB.prepare(
-		`INSERT INTO event_batches (id, received_at, install_id, app_version, platform, event_count, payload_json)
-		 VALUES (?, ?, ?, ?, ?, ?, ?)
-		 ON CONFLICT(id) DO NOTHING`,
-	)
-		.bind(
-			payload.batchId,
-			Date.now(),
-			payload.installId,
-			payload.appVersion,
-			payload.platform,
-			payload.events.length,
-			JSON.stringify(payload.events),
-		)
-		.run();
-	const duplicate = result.meta.changes === 0;
-	if (!duplicate && env.AE) {
-		try {
-			for (const event of payload.events) {
-				env.AE.writeDataPoint({
-					blobs: [
-						event.name,
-						payload.platform,
-						payload.appVersion,
-						payload.installId,
-						JSON.stringify(event.properties),
-						payload.batchId,
-					],
-					doubles: [event.timestampMillis, event.schemaVersion],
-					indexes: [payload.installId],
-				});
-			}
-		} catch (error) {
-			// D1 remains the durable source of truth if the optional analytics index is unavailable.
-			console.error(
-				JSON.stringify({
-					message: "failed to index diagnostics event batch",
-					batchId: payload.batchId,
-					error: error instanceof Error ? error.message : String(error),
-				}),
-			);
-		}
-	}
-	return {
-		id: payload.batchId,
-		duplicate,
-		stored: duplicate ? 0 : payload.events.length,
-	};
-}
-
-export async function storeCrash(
-	payload: NormalizedCrashPayload,
-	env: DiagnosticsEnv,
-): Promise<StoreResult & { fingerprint: string }> {
-	const database = env.DB.withSession("first-primary");
-	const existing = await database
-		.prepare("SELECT fingerprint FROM crashes WHERE id = ?")
-		.bind(payload.id)
-		.first<{ fingerprint: string }>();
-	if (existing) {
-		return { id: payload.id, duplicate: true, stored: 0, fingerprint: existing.fingerprint };
-	}
-
-	const fingerprint = await crashFingerprint(payload.exceptionType, payload.stackTrace);
-	const stackKey = payload.stackTrace
-		? `crashes/${payload.id}/${crypto.randomUUID()}/stack.txt`
-		: null;
-
-	if (stackKey) {
-		await env.BLOBS.put(stackKey, payload.stackTrace, {
-			httpMetadata: { contentType: "text/plain; charset=utf-8" },
-			customMetadata: { installId: payload.installId, fingerprint },
-		});
-	}
-
-	try {
-		const result = await database
-			.prepare(
-			`INSERT INTO crashes (
-			  id, received_at, occurred_at, install_id, app_version, platform,
-			  exception_type, exception_message, fingerprint, diagnostics_enabled,
-			  stack_r2_key, breadcrumbs_json, schema_version
-			) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
-			ON CONFLICT(id) DO NOTHING`,
-			)
-			.bind(
-				payload.id,
-				Date.now(),
-				payload.occurredAt,
-				payload.installId,
-				payload.appVersion,
-				payload.platform,
-				payload.exceptionType,
-				payload.exceptionMessage,
-				fingerprint,
-				payload.diagnosticsEnabledAtCapture ? 1 : 0,
-				stackKey,
-				JSON.stringify(payload.breadcrumbs),
-				payload.schemaVersion,
-			)
-			.run();
-		const duplicate = result.meta.changes === 0;
-		if (duplicate) {
-			const stored = await database
-				.prepare("SELECT fingerprint FROM crashes WHERE id = ?")
-				.bind(payload.id)
-				.first<{ fingerprint: string }>();
-			if (!stored) throw new Error("duplicate crash row was not readable");
-			if (stackKey) await deleteAttemptBlob(env, stackKey);
-			return { id: payload.id, duplicate: true, stored: 0, fingerprint: stored.fingerprint };
-		}
-		return { id: payload.id, duplicate: false, stored: 1, fingerprint };
-	} catch (error) {
-		if (stackKey) {
-			await deleteAttemptBlob(env, stackKey);
-		}
-		throw error;
-	}
-}
-
 export async function storeBug(
 	payload: NormalizedBugPayload,
 	env: DiagnosticsEnv,
@@ -161,12 +32,12 @@ export async function storeBug(
 	try {
 		const result = await database
 			.prepare(
-			`INSERT INTO bugs (
-			  id, received_at, occurred_at, install_id, app_version, platform,
-			  what_happened, expected, steps, contact, logs_r2_key,
-			  device_json, breadcrumbs_json, status, schema_version
-			) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 'open', ?)
-			ON CONFLICT(id) DO NOTHING`,
+				`INSERT INTO bugs (
+				  id, received_at, occurred_at, install_id, app_version, platform,
+				  what_happened, expected, steps, contact, logs_r2_key,
+				  device_json, status, schema_version
+				) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 'open', ?)
+				ON CONFLICT(id) DO NOTHING`,
 			)
 			.bind(
 				payload.id,
@@ -181,7 +52,6 @@ export async function storeBug(
 				payload.contact,
 				logsKey,
 				JSON.stringify(payload.device),
-				JSON.stringify(payload.breadcrumbs),
 				payload.schemaVersion,
 			)
 			.run();
@@ -201,26 +71,22 @@ export async function storeBug(
 export async function runRetention(env: DiagnosticsEnv): Promise<void> {
 	const retentionDays = boundedPositiveInt(env.RETENTION_DAYS, 90, 1, 3_650);
 	const cutoff = Date.now() - retentionDays * 86_400_000;
-	// Eight full passes plus the backlog check use at most 43 of D1's 50 queries per invocation.
+	// Eight passes plus the backlog check stay well within D1's 50 queries per invocation.
 	for (let pass = 0; pass < 8; pass += 1) {
 		const hasFullBatch = await runRetentionPass(env, cutoff);
 		if (!hasFullBatch) return;
 	}
-	const [events, crashes, bugs] = await env.DB.batch<{ count: number }>([
-		env.DB.prepare("SELECT COUNT(*) AS count FROM event_batches WHERE received_at < ?").bind(
-			cutoff,
-		),
-		env.DB.prepare("SELECT COUNT(*) AS count FROM crashes WHERE received_at < ?").bind(cutoff),
-		env.DB.prepare("SELECT COUNT(*) AS count FROM bugs WHERE received_at < ?").bind(cutoff),
-	]);
+	const bugs = await env.DB.prepare(
+		"SELECT COUNT(*) AS count FROM bugs WHERE received_at < ?",
+	)
+		.bind(cutoff)
+		.first<{ count: number }>();
 	console.warn(
 		JSON.stringify({
 			message: "diagnostics retention reached its per-run pass limit",
 			cutoff,
 			backlog: {
-				eventBatches: events.results[0]?.count ?? 0,
-				crashes: crashes.results[0]?.count ?? 0,
-				bugs: bugs.results[0]?.count ?? 0,
+				bugs: bugs?.count ?? 0,
 			},
 		}),
 	);
@@ -228,28 +94,17 @@ export async function runRetention(env: DiagnosticsEnv): Promise<void> {

 async function runRetentionPass(env: DiagnosticsEnv, cutoff: number): Promise<boolean> {
 	const reportBatchSize = 900;
-	const eventBatchSize = 1_000;
-	const [crashes, bugs] = await Promise.all([
-		expiredBlobRows(env.DB, "crashes", "stack_r2_key", cutoff, reportBatchSize),
-		expiredBlobRows(env.DB, "bugs", "logs_r2_key", cutoff, reportBatchSize),
-	]);
+	const bugs = await expiredBlobRows(env.DB, "bugs", "logs_r2_key", cutoff, reportBatchSize);

-	const blobKeys = [...crashes, ...bugs]
+	const blobKeys = bugs
 		.map((row) => row.blobKey)
 		.filter((key): key is string => key !== null);
 	for (let offset = 0; offset < blobKeys.length; offset += 1_000) {
 		await env.BLOBS.delete(blobKeys.slice(offset, offset + 1_000));
 	}

-	const statements = [retentionStatement(env.DB, "event_batches", cutoff, eventBatchSize)];
-	if (crashes.length > 0) statements.push(deleteRowsById(env.DB, "crashes", crashes));
-	if (bugs.length > 0) statements.push(deleteRowsById(env.DB, "bugs", bugs));
-	const [eventsResult] = await env.DB.batch(statements);
-	return (
-		eventsResult.meta.changes === eventBatchSize ||
-		crashes.length === reportBatchSize ||
-		bugs.length === reportBatchSize
-	);
+	if (bugs.length > 0) await deleteRowsById(env.DB, "bugs", bugs).run();
+	return bugs.length === reportBatchSize;
 }

 interface ExpiredBlobRow {
@@ -259,8 +114,8 @@ interface ExpiredBlobRow {

 async function expiredBlobRows(
 	database: D1Database,
-	table: "crashes" | "bugs",
-	column: "stack_r2_key" | "logs_r2_key",
+	table: "bugs",
+	column: "logs_r2_key",
 	cutoff: number,
 	batchSize: number,
 ): Promise<ExpiredBlobRow[]> {
@@ -277,25 +132,9 @@ async function expiredBlobRows(
 	return result.results;
 }

-function retentionStatement(
-	database: D1Database,
-	table: "event_batches" | "crashes" | "bugs",
-	cutoff: number,
-	batchSize: number,
-): D1PreparedStatement {
-	return database
-		.prepare(
-			`DELETE FROM ${table}
-			 WHERE rowid IN (
-			   SELECT rowid FROM ${table} WHERE received_at < ? ORDER BY received_at LIMIT ?
-			 )`,
-		)
-		.bind(cutoff, batchSize);
-}
-
 function deleteRowsById(
 	database: D1Database,
-	table: "crashes" | "bugs",
+	table: "bugs",
 	rows: ExpiredBlobRow[],
 ): D1PreparedStatement {
 	return database
@@ -303,18 +142,6 @@ function deleteRowsById(
 		.bind(JSON.stringify(rows.map((row) => row.id)));
 }

-async function crashFingerprint(exceptionType: string, stackTrace: string): Promise<string> {
-	const topFrames = stackTrace
-		.split("\n")
-		.map((line) => line.trim())
-		.filter(Boolean)
-		.slice(0, 4)
-		.join("\n");
-	const bytes = new TextEncoder().encode(`${exceptionType}\n${topFrames}`);
-	const digest = new Uint8Array(await crypto.subtle.digest("SHA-256", bytes));
-	return Array.from(digest, (byte) => byte.toString(16).padStart(2, "0")).join("");
-}
-
 async function deleteAttemptBlob(env: DiagnosticsEnv, key: string): Promise<void> {
 	try {
 		await env.BLOBS.delete(key);
--- a/services/diagnostics-api/test/input.test.ts
+++ b/services/diagnostics-api/test/input.test.ts
@@ -1,11 +1,8 @@
 import { describe, expect, it } from "vitest";
 import {
-	MAX_BREADCRUMBS_JSON_BYTES,
 	MAX_DEVICE_JSON_BYTES,
 	MAX_LOG_BYTES,
 	normalizeBug,
-	normalizeCrash,
-	normalizeEvents,
 	readJsonObject,
 } from "../src/input";

@@ -57,7 +54,7 @@ describe("readJsonObject", () => {
 	});

 	it("requires application/json with a UTF-8 charset", async () => {
-		const missing = new Request("https://example.test/v1/events", {
+		const missing = new Request("https://example.test/v1/bugs", {
 			method: "POST",
 			body: "{}",
 		});
@@ -108,18 +105,6 @@ describe("readJsonObject", () => {

 describe("normalizers", () => {
 	it("preserves false booleans and rejects their string representation", () => {
-		const crash = crashPayload(false);
-		const normalizedCrash = normalizeCrash(crash);
-		expect(normalizedCrash.ok).toBe(true);
-		if (normalizedCrash.ok) {
-			expect(normalizedCrash.value.diagnosticsEnabledAtCapture).toBe(false);
-		}
-		expect(normalizeCrash(crashPayload("false"))).toEqual({
-			ok: false,
-			status: 400,
-			error: "invalid_diagnostics_enabled",
-		});
-
 		const bug = bugPayload({ include_logs: false, logs: "discard me" });
 		const normalizedBug = normalizeBug(bug);
 		expect(normalizedBug.ok).toBe(true);
@@ -133,20 +118,11 @@ describe("normalizers", () => {
 		});
 	});

-	it("keeps logs, breadcrumbs, and device JSON within valid byte budgets", () => {
-		const properties = Object.fromEntries(
-			Array.from({ length: 12 }, (_, index) => [`key-${index}-${"\u0000".repeat(40)}`, "\u0000".repeat(128)]),
-		);
-		const breadcrumbs = Array.from({ length: 40 }, (_, index) => ({
-			name: `crumb-${index}`,
-			timestamp_millis: index,
-			properties,
-		}));
+	it("keeps logs and device JSON within valid byte budgets", () => {
 		const result = normalizeBug(
 			bugPayload({
 				include_logs: true,
 				logs: "😀".repeat(60_000),
-				breadcrumbs,
 				device: {
 					device_name: "\u0000".repeat(200),
 					device_model: "\u0000".repeat(200),
@@ -159,54 +135,38 @@ describe("normalizers", () => {

 		expect(result.ok).toBe(true);
 		if (!result.ok) return;
-		const breadcrumbsJson = JSON.stringify(result.value.breadcrumbs);
 		const deviceJson = JSON.stringify(result.value.device);
 		expect(ENCODER.encode(result.value.logs).byteLength).toBe(MAX_LOG_BYTES);
-		expect(ENCODER.encode(breadcrumbsJson).byteLength).toBeLessThanOrEqual(
-			MAX_BREADCRUMBS_JSON_BYTES,
-		);
 		expect(ENCODER.encode(deviceJson).byteLength).toBeLessThanOrEqual(MAX_DEVICE_JSON_BYTES);
-		expect(JSON.parse(breadcrumbsJson)).toEqual(result.value.breadcrumbs);
 		expect(JSON.parse(deviceJson)).toEqual(result.value.device);
 	});

 	it("requires stable report IDs and validates supplied IDs and schema versions", () => {
-		const result = normalizeEvents({
-			events: [{ name: "opened", ts: 1, schema_version: 1 }],
-		});
-		expect(result).toEqual({ ok: false, status: 400, error: "invalid_batch_id" });
-		const legacyInstall = normalizeEvents({
-			batch_id: ID,
-			install_id: "legacy-test-install",
-			events: [{ name: "opened", ts: 1 }],
-		});
-		expect(legacyInstall.ok && legacyInstall.value.installId).toBe("legacy-test-install");
-		const missingInstall = normalizeEvents({
-			batch_id: ID,
-			events: [{ name: "opened", ts: 1 }],
-		});
-		expect(missingInstall.ok && missingInstall.value.installId).toBe("unknown");
-		expect(
-			normalizeEvents({
-				batch_id: ID,
-				install_id: "bad\u0000install",
-				events: [{ name: "opened", ts: 1 }],
-			}),
-		).toEqual({ ok: false, status: 400, error: "invalid_install_id" });
+		const missingId = normalizeBug(bugPayload({ id: undefined }));
+		expect(missingId).toEqual({ ok: false, status: 400, error: "invalid_id" });

-		expect(
-			normalizeEvents({
-				batch_id: "not-a-uuid",
-				events: [{ name: "opened", timestamp_millis: 1 }],
-			}),
-		).toEqual({ ok: false, status: 400, error: "invalid_batch_id" });
-		expect(
-			normalizeEvents({
-				batch_id: ID,
-				install_id: INSTALL_ID,
-				events: [{ name: "opened", timestamp_millis: 1, schema_version: 2 }],
-			}),
-		).toEqual({ ok: false, status: 400, error: "unsupported_schema_version" });
+		const legacyInstall = normalizeBug(bugPayload({ install_id: "legacy-test-install" }));
+		expect(legacyInstall.ok && legacyInstall.value.installId).toBe("legacy-test-install");
+
+		const missingInstall = normalizeBug(bugPayload({ install_id: undefined }));
+		expect(missingInstall.ok && missingInstall.value.installId).toBe("unknown");
+
+		expect(normalizeBug(bugPayload({ install_id: "bad\u0000install" }))).toEqual({
+			ok: false,
+			status: 400,
+			error: "invalid_install_id",
+		});
+
+		expect(normalizeBug(bugPayload({ id: "not-a-uuid" }))).toEqual({
+			ok: false,
+			status: 400,
+			error: "invalid_id",
+		});
+		expect(normalizeBug(bugPayload({ schema_version: 2 }))).toEqual({
+			ok: false,
+			status: 400,
+			error: "unsupported_schema_version",
+		});
 	});
 });

@@ -215,7 +175,7 @@ function chunkedJsonRequest(
 	contentType = "application/json; charset=utf-8",
 	contentLength?: string,
 ): Request {
-	return new Request("https://example.test/v1/events", {
+	return new Request("https://example.test/v1/bugs", {
 		method: "POST",
 		headers: {
 			"content-type": contentType,
@@ -230,24 +190,8 @@ function chunkedJsonRequest(
 	});
 }

-function crashPayload(diagnosticsEnabled: unknown): Record<string, unknown> {
-	return {
-		id: ID,
-		install_id: INSTALL_ID,
-		app_version: "1.0",
-		platform: "test",
-		exception_type: "ExampleError",
-		exception_message: "message",
-		stack_trace: "stack",
-		occurred_at: 1,
-		diagnostics_enabled: diagnosticsEnabled,
-		schema_version: 1,
-		breadcrumbs: [],
-	};
-}
-
 function bugPayload(overrides: Record<string, unknown> = {}): Record<string, unknown> {
-	return {
+	const payload: Record<string, unknown> = {
 		id: ID,
 		install_id: INSTALL_ID,
 		app_version: "1.0",
@@ -259,8 +203,12 @@ function bugPayload(overrides: Record<string, unknown> = {}): Record<string, unk
 		contact: "",
 		logs: "",
 		device: {},
-		breadcrumbs: [],
 		schema_version: 1,
 		...overrides,
 	};
+	// An explicit `undefined` override omits the key entirely (simulating a missing field).
+	for (const key of Object.keys(overrides)) {
+		if (overrides[key] === undefined) delete payload[key];
+	}
+	return payload;
 }
--- a/services/diagnostics-api/test/worker.test.ts
+++ b/services/diagnostics-api/test/worker.test.ts
@@ -2,18 +2,8 @@ import { env, exports } from "cloudflare:workers";
 import { createExecutionContext } from "cloudflare:test";
 import { describe, expect, it, vi } from "vitest";
 import worker from "../src/index";
-import type {
-	NormalizedBugPayload,
-	NormalizedCrashPayload,
-	NormalizedEventsPayload,
-} from "../src/input";
-import {
-	type DiagnosticsEnv,
-	runRetention,
-	storeBug,
-	storeCrash,
-	storeEvents,
-} from "../src/storage";
+import type { NormalizedBugPayload } from "../src/input";
+import { type DiagnosticsEnv, runRetention, storeBug } from "../src/storage";

 const INSTALL_ID = "10000000-0000-4000-8000-000000000000";

@@ -35,7 +25,7 @@ describe("diagnostics Worker", () => {
 		expect(unknown.status).toBe(404);

 		const unauthorized = await exports.default.fetch(
-			jsonRequest("/v1/events", eventPayload(uuid(1)), "wrong-key"),
+			jsonRequest("/v1/bugs", bugPayload(uuid(1), "logs"), "wrong-key"),
 		);
 		expect(unauthorized.status).toBe(401);
 		expect(await unauthorized.json()).toEqual({ error: "unauthorized" });
@@ -44,7 +34,7 @@ describe("diagnostics Worker", () => {
 		);

 		const preflight = await exports.default.fetch(
-			new Request("https://diagnostics.test/v1/events", { method: "OPTIONS" }),
+			new Request("https://diagnostics.test/v1/bugs", { method: "OPTIONS" }),
 		);
 		expect(preflight.status).toBe(204);
 		expect(preflight.headers.get("access-control-allow-origin")).toBeNull();
@@ -68,7 +58,7 @@ describe("diagnostics Worker", () => {
 		const context = createExecutionContext();

 		const response = await worker.fetch(
-			jsonRequest("/v1/events", eventPayload(uuid(3)), "wrong-key", "198.51.100.3"),
+			jsonRequest("/v1/bugs", bugPayload(uuid(3), "logs"), "wrong-key", "198.51.100.3"),
 			limitedEnv,
 			context,
 		);
@@ -80,7 +70,7 @@ describe("diagnostics Worker", () => {
 	});

 	it("returns structured errors for invalid bodies and asynchronous storage failures", async () => {
-		const invalid = await exports.default.fetch(jsonRequest("/v1/events", null));
+		const invalid = await exports.default.fetch(jsonRequest("/v1/bugs", null));
 		expect(invalid.status).toBe(400);
 		expect(await invalid.json()).toEqual({ error: "invalid_body" });

@@ -92,6 +82,8 @@ describe("diagnostics Worker", () => {
 		};
 		const rejectingDatabase = {
 			prepare: () => statement,
+			batch: async () => Promise.reject(rejection),
+			withSession: () => ({ prepare: () => statement }),
 		} as unknown as D1Database;
 		const rejectingEnv: DiagnosticsEnv = { ...env, DB: rejectingDatabase };

@@ -106,7 +98,7 @@ describe("diagnostics Worker", () => {

 		const ingestContext = createExecutionContext();
 		const failedIngest = await worker.fetch(
-			jsonRequest("/v1/events", eventPayload(uuid(2)), env.INGEST_KEY, "198.51.100.2"),
+			jsonRequest("/v1/bugs", bugPayload(uuid(2), "logs"), env.INGEST_KEY, "198.51.100.2"),
 			rejectingEnv,
 			ingestContext,
 		);
@@ -114,101 +106,6 @@ describe("diagnostics Worker", () => {
 		expect(await failedIngest.json()).toEqual({ error: "internal" });
 	});

-	it("deduplicates event batches using the client batch ID", async () => {
-		const id = uuid(10);
-		const first = await exports.default.fetch(jsonRequest("/v1/events", eventPayload(id)));
-		const second = await exports.default.fetch(jsonRequest("/v1/events", eventPayload(id)));
-
-		expect(first.status).toBe(202);
-		expect(await first.json()).toMatchObject({
-			ok: true,
-			id,
-			stored: 1,
-			duplicate: false,
-		});
-		expect(second.status).toBe(202);
-		expect(await second.json()).toMatchObject({
-			ok: true,
-			id,
-			stored: 0,
-			duplicate: true,
-		});
-
-		const row = await env.DB.prepare(
-			"SELECT event_count AS eventCount, payload_json AS payloadJson FROM event_batches WHERE id = ?",
-		)
-			.bind(id)
-			.first<{ eventCount: number; payloadJson: string }>();
-		expect(row?.eventCount).toBe(1);
-		expect(JSON.parse(row?.payloadJson ?? "null")).toEqual([
-			{
-				name: "app_open",
-				timestampMillis: 1,
-				properties: { screen: "home" },
-				schemaVersion: 1,
-			},
-		]);
-	});
-
-	it("keeps D1 idempotency when the optional analytics index is enabled", async () => {
-		const points: AnalyticsEngineDataPoint[] = [];
-		const analytics = {
-			writeDataPoint: (point: AnalyticsEngineDataPoint) => points.push(point),
-		} as AnalyticsEngineDataset;
-		const analyticsEnv: DiagnosticsEnv = { ...env, AE: analytics };
-		const payload: NormalizedEventsPayload = {
-			batchId: uuid(11),
-			installId: INSTALL_ID,
-			appVersion: "1.0",
-			platform: "test",
-			events: [
-				{
-					name: "indexed",
-					timestampMillis: 1,
-					properties: {},
-					schemaVersion: 1,
-				},
-			],
-		};
-
-		expect(await storeEvents(payload, analyticsEnv)).toMatchObject({ duplicate: false, stored: 1 });
-		expect(await storeEvents(payload, analyticsEnv)).toMatchObject({ duplicate: true, stored: 0 });
-		expect(points).toHaveLength(1);
-	});
-
-	it("keeps the accepted crash blob when a duplicate request arrives", async () => {
-		const id = uuid(20);
-		const first = await exports.default.fetch(
-			jsonRequest("/v1/crashes", crashPayload(id, "first stack")),
-		);
-		const second = await exports.default.fetch(
-			jsonRequest("/v1/crashes", crashPayload(id, "second stack")),
-		);
-
-		expect(first.status).toBe(202);
-		const firstBody = await first.json<{ fingerprint: string }>();
-		expect(firstBody).toMatchObject({ ok: true, id, duplicate: false });
-		expect(second.status).toBe(202);
-		const secondBody = await second.json<{ fingerprint: string }>();
-		expect(secondBody).toMatchObject({ ok: true, id, duplicate: true });
-
-		const row = await env.DB.prepare(
-			`SELECT stack_r2_key AS stackKey, breadcrumbs_json AS breadcrumbsJson,
-			        fingerprint
-			 FROM crashes WHERE id = ?`,
-		)
-			.bind(id)
-			.first<{ stackKey: string; breadcrumbsJson: string; fingerprint: string }>();
-		expect(row?.stackKey).toMatch(new RegExp(`^crashes/${id}/[0-9a-f-]+/stack\\.txt$`));
-		expect(firstBody.fingerprint).toBe(row?.fingerprint);
-		expect(secondBody.fingerprint).toBe(row?.fingerprint);
-		expect(JSON.parse(row?.breadcrumbsJson ?? "null")).toEqual([]);
-		expect(await (await env.BLOBS.get(row?.stackKey ?? "missing"))?.text()).toBe("first stack");
-
-		const objects = await env.BLOBS.list({ prefix: `crashes/${id}/` });
-		expect(objects.objects.map((object) => object.key)).toEqual([row?.stackKey]);
-	});
-
 	it("stores bug metadata as JSON and cleans the duplicate upload attempt", async () => {
 		const id = uuid(30);
 		const payload = bugPayload(id, "first logs");
@@ -224,7 +121,7 @@ describe("diagnostics Worker", () => {

 		const row = await env.DB.prepare(
 			`SELECT occurred_at AS occurredAt, logs_r2_key AS logsKey,
-			        device_json AS deviceJson, breadcrumbs_json AS breadcrumbsJson
+			        device_json AS deviceJson
 			 FROM bugs WHERE id = ?`,
 		)
 			.bind(id)
@@ -232,7 +129,6 @@ describe("diagnostics Worker", () => {
 				occurredAt: number;
 				logsKey: string;
 				deviceJson: string;
-				breadcrumbsJson: string;
 			}>();
 		expect(row?.occurredAt).toBe(3);
 		expect(JSON.parse(row?.deviceJson ?? "null")).toEqual({
@@ -242,9 +138,6 @@ describe("diagnostics Worker", () => {
 			network: "offline",
 			batteryLevel: "90%",
 		});
-		expect(JSON.parse(row?.breadcrumbsJson ?? "null")).toEqual([
-			{ name: "opened", timestampMillis: 2, properties: {} },
-		]);
 		expect(await (await env.BLOBS.get(row?.logsKey ?? "missing"))?.text()).toBe("first logs");

 		const objects = await env.BLOBS.list({ prefix: `bugs/${id}/` });
@@ -252,9 +145,7 @@ describe("diagnostics Worker", () => {
 	});

 	it("acknowledges known report IDs without touching an unavailable blob store", async () => {
-		const crash = normalizedCrash(uuid(31), "accepted stack");
 		const bug = normalizedBug(uuid(32), "accepted logs");
-		const firstCrash = await storeCrash(crash, env);
 		await storeBug(bug, env);
 		let blobWrites = 0;
 		const unavailableBlobs = {
@@ -265,14 +156,6 @@ describe("diagnostics Worker", () => {
 		} as unknown as R2Bucket;
 		const unavailableEnv: DiagnosticsEnv = { ...env, BLOBS: unavailableBlobs };

-		await expect(
-			storeCrash({ ...crash, stackTrace: "retry stack" }, unavailableEnv),
-		).resolves.toEqual({
-			id: crash.id,
-			duplicate: true,
-			stored: 0,
-			fingerprint: firstCrash.fingerprint,
-		});
 		await expect(
 			storeBug({ ...bug, logs: "retry logs" }, unavailableEnv),
 		).resolves.toEqual({ id: bug.id, duplicate: true, stored: 0 });
@@ -286,88 +169,56 @@ describe("diagnostics Worker", () => {
 			async () => Promise.reject(rejection),
 		);
 		const rejectingEnv: DiagnosticsEnv = { ...env, DB: rejectingDatabase };
-		const crashId = uuid(33);
 		const bugId = uuid(34);

-		const crashResponse = await worker.fetch(
-			jsonRequest("/v1/crashes", crashPayload(crashId, "orphan candidate"), env.INGEST_KEY, "198.51.100.33"),
-			rejectingEnv,
-			createExecutionContext(),
-		);
 		const bugResponse = await worker.fetch(
 			jsonRequest("/v1/bugs", bugPayload(bugId, "orphan candidate"), env.INGEST_KEY, "198.51.100.34"),
 			rejectingEnv,
 			createExecutionContext(),
 		);

-		expect(crashResponse.status).toBe(500);
-		expect(await crashResponse.json()).toEqual({ error: "internal" });
 		expect(bugResponse.status).toBe(500);
 		expect(await bugResponse.json()).toEqual({ error: "internal" });
-		expect((await env.BLOBS.list({ prefix: `crashes/${crashId}/` })).objects).toEqual([]);
 		expect((await env.BLOBS.list({ prefix: `bugs/${bugId}/` })).objects).toEqual([]);
 	});

 	it("removes expired rows and their exact R2 objects while preserving current data", async () => {
-		const oldEventId = uuid(40);
-		const oldCrashId = uuid(41);
 		const oldBugId = uuid(42);
-		const currentEventId = uuid(43);
-		const oldCrashKey = `crashes/${oldCrashId}/retention/stack.txt`;
+		const currentBugId = uuid(43);
 		const oldBugKey = `bugs/${oldBugId}/retention/logs.txt`;
 		const oldReceivedAt = Date.now() - 100 * 86_400_000;

-		await Promise.all([
-			env.BLOBS.put(oldCrashKey, "expired crash"),
-			env.BLOBS.put(oldBugKey, "expired logs"),
-		]);
+		await env.BLOBS.put(oldBugKey, "expired logs");
 		await env.DB.batch([
-			env.DB.prepare(
-				`INSERT INTO event_batches
-				 (id, received_at, install_id, app_version, platform, event_count, payload_json)
-				 VALUES (?, ?, ?, '', '', 1, '[]')`,
-			).bind(oldEventId, oldReceivedAt, INSTALL_ID),
-			env.DB.prepare(
-				`INSERT INTO event_batches
-				 (id, received_at, install_id, app_version, platform, event_count, payload_json)
-				 VALUES (?, ?, ?, '', '', 1, '[]')`,
-			).bind(currentEventId, Date.now(), INSTALL_ID),
-			env.DB.prepare(
-				`INSERT INTO crashes
-				 (id, received_at, occurred_at, install_id, app_version, platform,
-				  exception_type, exception_message, fingerprint, diagnostics_enabled,
-				  stack_r2_key, breadcrumbs_json, schema_version)
-				 VALUES (?, ?, ?, ?, '', '', 'Error', '', 'fingerprint', 1, ?, '[]', 1)`,
-			).bind(oldCrashId, oldReceivedAt, oldReceivedAt, INSTALL_ID, oldCrashKey),
 			env.DB.prepare(
 				`INSERT INTO bugs
 				 (id, received_at, occurred_at, install_id, app_version, platform,
 				  what_happened, expected, steps, contact, logs_r2_key,
-				  device_json, breadcrumbs_json, status, schema_version)
-				 VALUES (?, ?, ?, ?, '', '', 'failed', 'worked', '', '', ?, '{}', '[]', 'open', 1)`,
+				  device_json, status, schema_version)
+				 VALUES (?, ?, ?, ?, '', '', 'failed', 'worked', '', '', ?, '{}', 'open', 1)`,
 			).bind(oldBugId, oldReceivedAt, oldReceivedAt, INSTALL_ID, oldBugKey),
+			env.DB.prepare(
+				`INSERT INTO bugs
+				 (id, received_at, occurred_at, install_id, app_version, platform,
+				  what_happened, expected, steps, contact, logs_r2_key,
+				  device_json, status, schema_version)
+				 VALUES (?, ?, ?, ?, '', '', 'failed', 'worked', '', '', NULL, '{}', 'open', 1)`,
+			).bind(currentBugId, Date.now(), Date.now(), INSTALL_ID),
 		]);

 		await runRetention(env);

-		for (const [table, id] of [
-			["event_batches", oldEventId],
-			["crashes", oldCrashId],
-			["bugs", oldBugId],
-		] as const) {
-			const row = await env.DB.prepare(`SELECT id FROM ${table} WHERE id = ?`).bind(id).first();
-			expect(row).toBeNull();
-		}
-		expect(await env.BLOBS.head(oldCrashKey)).toBeNull();
+		expect(
+			await env.DB.prepare("SELECT id FROM bugs WHERE id = ?").bind(oldBugId).first(),
+		).toBeNull();
 		expect(await env.BLOBS.head(oldBugKey)).toBeNull();
 		expect(
-			await env.DB.prepare("SELECT id FROM event_batches WHERE id = ?").bind(currentEventId).first(),
+			await env.DB.prepare("SELECT id FROM bugs WHERE id = ?").bind(currentBugId).first(),
 		).not.toBeNull();
 	});

 	it("bounds a full retention run below the D1 per-invocation query limit", async () => {
 		let queryCount = 0;
-		let batchCalls = 0;
 		const blobDeleteBatchSizes: number[] = [];
 		const rows = Array.from({ length: 900 }, (_, index) => ({
 			id: `expired-${index}`,
@@ -381,17 +232,17 @@ describe("diagnostics Worker", () => {
 						queryCount += 1;
 						return d1Result(rows, 0);
 					},
+					run: async () => {
+						queryCount += 1;
+						return d1Result([], rows.length);
+					},
+					first: async () => {
+						queryCount += 1;
+						return { count: rows.length };
+					},
 				};
 				return statement;
 			},
-			batch: async (statements: D1PreparedStatement[]) => {
-				batchCalls += 1;
-				queryCount += statements.length;
-				if (batchCalls === 9) {
-					return statements.map(() => d1Result([{ count: 1 }], 0));
-				}
-				return statements.map((_, index) => d1Result([], index === 0 ? 1_000 : 900));
-			},
 		} as unknown as D1Database;
 		const warning = vi.spyOn(console, "warn").mockImplementation(() => undefined);
 		const blobs = {
@@ -406,9 +257,10 @@ describe("diagnostics Worker", () => {
 			warning.mockRestore();
 		}

-		expect(queryCount).toBe(43);
-		expect(blobDeleteBatchSizes).toHaveLength(16);
-		expect(Math.max(...blobDeleteBatchSizes)).toBe(1_000);
+		// Eight passes (one SELECT + one DELETE each) plus the final backlog SELECT.
+		expect(queryCount).toBe(17);
+		expect(blobDeleteBatchSizes).toHaveLength(8);
+		expect(Math.max(...blobDeleteBatchSizes)).toBe(900);
 	});

 	it("converges an expired report backlog across bounded retention runs", async () => {
@@ -424,13 +276,13 @@ describe("diagnostics Worker", () => {
 			   CROSS JOIN digits AS ones
 			   WHERE thousands.value * 1000 + hundreds.value * 100 + tens.value * 10 + ones.value < 7201
 			 )
-			 INSERT INTO crashes (
+			 INSERT INTO bugs (
 			   id, received_at, occurred_at, install_id, app_version, platform,
-			   exception_type, exception_message, fingerprint, diagnostics_enabled,
-			   stack_r2_key, breadcrumbs_json, schema_version
+			   what_happened, expected, steps, contact, logs_r2_key,
+			   device_json, status, schema_version
 			 )
 			 SELECT 'retention-backlog-' || printf('%04d', value), ?, ?, ?, '', '',
-			        'Error', '', 'fingerprint-' || value, 0, NULL, '[]', 1
+			        'failed', 'worked', '', '', NULL, '{}', 'open', 1
 			 FROM sequence`,
 		)
 			.bind(oldReceivedAt, oldReceivedAt, INSTALL_ID)
@@ -440,13 +292,13 @@ describe("diagnostics Worker", () => {
 		try {
 			await runRetention(env);
 			const afterFirstRun = await env.DB.prepare(
-				"SELECT COUNT(*) AS count FROM crashes WHERE id LIKE 'retention-backlog-%'",
+				"SELECT COUNT(*) AS count FROM bugs WHERE id LIKE 'retention-backlog-%'",
 			).first<{ count: number }>();
 			expect(afterFirstRun?.count).toBe(1);

 			await runRetention(env);
 			const afterSecondRun = await env.DB.prepare(
-				"SELECT COUNT(*) AS count FROM crashes WHERE id LIKE 'retention-backlog-%'",
+				"SELECT COUNT(*) AS count FROM bugs WHERE id LIKE 'retention-backlog-%'",
 			).first<{ count: number }>();
 			expect(afterSecondRun?.count).toBe(0);
 		} finally {
@@ -482,39 +334,6 @@ function healthRequest(key = env.INGEST_KEY, source = "198.51.100.1"): Request {
 	});
 }

-function eventPayload(batchId: string): Record<string, unknown> {
-	return {
-		batchId,
-		installId: INSTALL_ID,
-		appVersion: "1.0",
-		platform: "test",
-		events: [
-			{
-				name: "app_open",
-				timestampMillis: 1,
-				properties: { screen: "home" },
-				schemaVersion: 1,
-			},
-		],
-	};
-}
-
-function crashPayload(id: string, stackTrace: string): Record<string, unknown> {
-	return {
-		id,
-		installId: INSTALL_ID,
-		appVersion: "1.0",
-		platform: "test",
-		exceptionType: "TestError",
-		exceptionMessage: "failed",
-		stackTrace,
-		timestampMillis: 2,
-		diagnosticsEnabledAtCapture: true,
-		breadcrumbs: [],
-		schemaVersion: 1,
-	};
-}
-
 function bugPayload(id: string, logs: string): Record<string, unknown> {
 	return {
 		id,
@@ -535,23 +354,6 @@ function bugPayload(id: string, logs: string): Record<string, unknown> {
 			network: "offline",
 			batteryLevel: "90%",
 		},
-		breadcrumbs: [{ name: "opened", timestampMillis: 2, properties: {} }],
-		schemaVersion: 1,
-	};
-}
-
-function normalizedCrash(id: string, stackTrace: string): NormalizedCrashPayload {
-	return {
-		id,
-		installId: INSTALL_ID,
-		appVersion: "1.0",
-		platform: "test",
-		exceptionType: "TestError",
-		exceptionMessage: "failed",
-		stackTrace,
-		occurredAt: 2,
-		diagnosticsEnabledAtCapture: true,
-		breadcrumbs: [],
 		schemaVersion: 1,
 	};
 }
@@ -575,7 +377,6 @@ function normalizedBug(id: string, logs: string): NormalizedBugPayload {
 			network: "offline",
 			batteryLevel: "90%",
 		},
-		breadcrumbs: [],
 		schemaVersion: 1,
 	};
 }
--- a/services/diagnostics-api/worker-configuration.d.ts
+++ b/services/diagnostics-api/worker-configuration.d.ts
@@ -1,5 +1,5 @@
 /* eslint-disable */
-// Generated by Wrangler by running `wrangler types` (hash: e2953336d40e96c4b5125a5de01f7cac)
+// Generated by Wrangler by running `wrangler types` (hash: 9c27cfd9219ba0d4efc153db78cad4c3)
 // Runtime types generated with workerd@1.20260708.1 2026-07-14 nodejs_compat
 interface __BaseEnv_Env {
 	BLOBS: R2Bucket;
@@ -7,7 +7,6 @@ interface __BaseEnv_Env {
 	INSTALL_RATE_LIMITER: RateLimit;
 	SOURCE_RATE_LIMITER: RateLimit;
 	MAX_BODY_BYTES: "262144";
-	MAX_EVENTS_PER_BATCH: "50";
 	RETENTION_DAYS: "90";
 }
 declare namespace Cloudflare {
@@ -21,7 +20,7 @@ type StringifyValues<EnvType extends Record<string, unknown>> = {
 	[Binding in keyof EnvType]: EnvType[Binding] extends string ? EnvType[Binding] : string;
 };
 declare namespace NodeJS {
-	interface ProcessEnv extends StringifyValues<Pick<Cloudflare.Env, "MAX_BODY_BYTES" | "MAX_EVENTS_PER_BATCH" | "RETENTION_DAYS">> {}
+	interface ProcessEnv extends StringifyValues<Pick<Cloudflare.Env, "MAX_BODY_BYTES" | "RETENTION_DAYS">> {}
 }

 // Begin runtime types
--- a/services/diagnostics-api/wrangler.jsonc
+++ b/services/diagnostics-api/wrangler.jsonc
@@ -47,13 +47,8 @@
 			},
 		},
 	],
-	// Optional: bind Analytics Engine as `AE` when event volume justifies it.
-	// "analytics_engine_datasets": [
-	// 	{ "binding": "AE", "dataset": "vnidrop_events" },
-	// ],
 	"vars": {
 		"MAX_BODY_BYTES": "262144",
-		"MAX_EVENTS_PER_BATCH": "50",
 		"RETENTION_DAYS": "90",
 	},
 }
--- a/shared/build.gradle.kts
+++ b/shared/build.gradle.kts
@@ -14,6 +14,7 @@ import org.gradle.api.tasks.PathSensitivity
 import org.gradle.api.tasks.TaskAction
 import org.gradle.jvm.tasks.Jar
 import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import java.util.Properties

 abstract class VerifyHostCargoTaskSelection : DefaultTask() {
 	@get:Input
@@ -49,7 +50,7 @@ val desktopRustVariant = providers.gradleProperty("vnidrop.desktop.rustVariant")
 	.orElse(Variant.Debug)

 // Compile-time switches (gradle.properties or -P…).
-// included=false: no Share-diagnostics toggle, no telemetry/crash auto-upload stack.
+// included=false: user-initiated bug reports use a NoOp transport (never sent).
 // endpoint/key both empty: transport is NoOp (safe default until Cloudflare is deployed).
 val diagnosticsIncluded: Boolean =
 	(findProperty("vnidrop.diagnostics.included") as String?)?.toBooleanStrictOrNull() ?: false
@@ -110,6 +111,55 @@ val generateDiagnosticsBuildConfig by tasks.registering {
 	}
 }

+// App-wide public constants (privacy policy URL, …) from the shared app.properties,
+// so Apple and KMP read one source of truth instead of hardcoding values.
+val appProperties = Properties().apply {
+	rootProject.file("app.properties").inputStream().use(::load)
+}
+val privacyPolicyUrl: String = appProperties.getProperty("PRIVACY_POLICY_URL")?.trim().orEmpty()
+check(privacyPolicyUrl.isNotEmpty()) { "PRIVACY_POLICY_URL must be set in app.properties" }
+
+val appConfigDir = layout.buildDirectory.dir("generated/appconfig/commonMain/kotlin")
+val generateAppConfig by tasks.registering {
+	group = "build"
+	description = "Generates AppConfig from the shared app.properties"
+	val outputDir = appConfigDir
+	val privacy = privacyPolicyUrl
+	inputs.property("PRIVACY_POLICY_URL", privacy)
+	outputs.dir(outputDir)
+	doLast {
+		val packageDir = outputDir.get().asFile.resolve("com/vnidrop/app")
+		packageDir.mkdirs()
+		fun esc(value: String): String = buildString {
+			for (ch in value) {
+				when (ch) {
+					'\\' -> append("\\\\")
+					'"' -> append("\\\"")
+					'\n' -> append("\\n")
+					'\r' -> append("\\r")
+					'\t' -> append("\\t")
+					'$' -> append("\\$")
+					else -> append(ch)
+				}
+			}
+		}
+		packageDir.resolve("AppConfig.kt").writeText(
+			"""
+			|package com.vnidrop.app
+			|
+			|/**
+			| * Generated by shared/build.gradle.kts from the shared app.properties.
+			| * Single source of truth for app-wide public constants (also used by Apple).
+			| */
+			|object AppConfig {
+			|	const val PRIVACY_POLICY_URL: String = "${esc(privacy)}"
+			|}
+			|
+			""".trimMargin(),
+		)
+	}
+}
+
 kotlin {
 	androidTarget {
 		compilerOptions {
@@ -122,6 +172,7 @@ kotlin {
 	sourceSets {
 		commonMain {
 			kotlin.srcDir(files(diagnosticsBuildConfigDir).builtBy(generateDiagnosticsBuildConfig))
+			kotlin.srcDir(files(appConfigDir).builtBy(generateAppConfig))
 		}
 		androidMain.dependencies {
 			implementation(libs.androidx.activity.compose)
--- a/shared/src/androidMain/kotlin/com/vnidrop/app/diagnostics/PendingCrashStore.android.kt
+++ b/shared/src/androidMain/kotlin/com/vnidrop/app/diagnostics/PendingCrashStore.android.kt
@@ -1,72 +0,0 @@
-package com.vnidrop.app.diagnostics
-
-import java.io.File
-import java.nio.charset.StandardCharsets
-
-actual fun createPendingCrashStore(appDataDir: String): PendingCrashStore =
-	AndroidPendingCrashStore(appDataDir)
-
-private class AndroidPendingCrashStore(
-	appDataDir: String,
-) : PendingCrashStore {
-	private val directory = File(appDataDir, "diagnostics/crashes")
-
-	@Synchronized
-	override fun write(report: CrashReport) {
-		if (!isValidDiagnosticId(report.id)) return
-		directory.mkdirs()
-		val target = File(directory, "${report.id}.crash")
-		val temporary = File(directory, ".${report.id}.tmp")
-		val payload = CrashReportCodec.encode(report)
-		temporary.writeText(payload, StandardCharsets.UTF_8)
-		if (!temporary.renameTo(target)) {
-			target.writeText(payload, StandardCharsets.UTF_8)
-			temporary.delete()
-		}
-	}
-
-	@Synchronized
-	override fun list(): List<CrashReport> {
-		if (!directory.isDirectory) return emptyList()
-		return directory
-			.listFiles { file -> file.isFile && file.name.endsWith(".crash") }
-			.orEmpty()
-			.sortedByDescending { it.lastModified() }
-			.mapNotNull { file ->
-				runCatching { CrashReportCodec.decode(file.readText(StandardCharsets.UTF_8)) }.getOrNull()
-			}
-	}
-
-	@Synchronized
-	override fun delete(id: String) {
-		if (!isValidDiagnosticId(id)) return
-		File(directory, "$id.crash").delete()
-	}
-
-	@Synchronized
-	override fun prune(olderThanTimestampMillis: Long, maxCount: Int) {
-		require(maxCount > 0) { "maxCount must be positive" }
-		if (!directory.isDirectory) return
-		directory.listFiles { file -> file.isFile && file.name.endsWith(".tmp") }
-			.orEmpty()
-			.forEach(File::delete)
-		val reports = directory
-			.listFiles { file -> file.isFile && file.name.endsWith(".crash") }
-			.orEmpty()
-			.mapNotNull { file ->
-				val report = runCatching {
-					CrashReportCodec.decode(file.readText(StandardCharsets.UTF_8))
-				}.getOrNull()
-				if (report == null) {
-					file.delete()
-					null
-				} else {
-					file to report
-				}
-			}
-			.sortedByDescending { (_, report) -> report.timestampMillis }
-		reports.forEachIndexed { index, (file, report) ->
-			if (index >= maxCount || report.timestampMillis < olderThanTimestampMillis) file.delete()
-		}
-	}
-}
--- a/shared/src/androidMain/kotlin/com/vnidrop/app/diagnostics/PlatformCrashHook.android.kt
+++ b/shared/src/androidMain/kotlin/com/vnidrop/app/diagnostics/PlatformCrashHook.android.kt
@@ -1,9 +0,0 @@
-package com.vnidrop.app.diagnostics
-
-actual fun installPlatformCrashHook(onCrash: (Throwable) -> Unit) {
-	val previous = Thread.getDefaultUncaughtExceptionHandler()
-	Thread.setDefaultUncaughtExceptionHandler { thread, throwable ->
-		runCatching { onCrash(throwable) }
-		previous?.uncaughtException(thread, throwable)
-	}
-}
--- a/shared/src/commonMain/composeResources/values-de/strings.xml
+++ b/shared/src/commonMain/composeResources/values-de/strings.xml
@@ -80,10 +80,6 @@
    <string name="button_write_nfc">Auf NFC-Tag schreiben</string>
    <string name="device_model_title">Gerätemodell</string>
    <string name="device_name_title">Gerätename</string>
-    <string name="diagnostics_description">Anonyme Absturzberichte und Nutzungsereignisse senden, damit wir VniDrop verbessern können. Sie können dies jederzeit deaktivieren. Einladungen, Dateipfade und Übertragungsinhalte werden niemals einbezogen.</string>
-    <string name="diagnostics_disabled_message">Die Freigabe von Diagnosedaten ist deaktiviert.</string>
-    <string name="diagnostics_enabled_message">Die Freigabe von Diagnosedaten ist aktiviert.</string>
-    <string name="diagnostics_title">Diagnosedaten teilen</string>
    <string name="error_camera">Für das Scannen eines QR-Codes ist Kamerazugriff erforderlich.</string>
    <string name="error_device_info">Geräteinformationen konnten nicht geladen werden.</string>
    <string name="error_destination_exists">Am Ziel ist bereits eine Datei mit demselben Namen vorhanden. Wählen Sie einen anderen Ordner oder entfernen Sie die vorhandene Datei.</string>
--- a/shared/src/commonMain/composeResources/values-es/strings.xml
+++ b/shared/src/commonMain/composeResources/values-es/strings.xml
@@ -80,10 +80,6 @@
    <string name="button_write_nfc">Escribir en etiqueta NFC</string>
    <string name="device_model_title">Modelo del dispositivo</string>
    <string name="device_name_title">Nombre del dispositivo</string>
-    <string name="diagnostics_description">Enviar informes de fallos y eventos de uso anónimos para ayudarnos a mejorar VniDrop. Puede desactivarlo en cualquier momento. Las invitaciones, las rutas de archivos y el contenido de las transferencias nunca se incluyen.</string>
-    <string name="diagnostics_disabled_message">El uso compartido de diagnósticos está desactivado.</string>
-    <string name="diagnostics_enabled_message">El uso compartido de diagnósticos está activado.</string>
-    <string name="diagnostics_title">Compartir diagnósticos</string>
    <string name="error_camera">Se necesita acceso a la cámara para escanear un código QR.</string>
    <string name="error_device_info">No se pudo cargar la información del dispositivo.</string>
    <string name="error_destination_exists">Ya existe un archivo con el mismo nombre en el destino. Elija otra carpeta o elimine el archivo existente.</string>
--- a/shared/src/commonMain/composeResources/values-fr/strings.xml
+++ b/shared/src/commonMain/composeResources/values-fr/strings.xml
@@ -80,10 +80,6 @@
    <string name="button_write_nfc">Écrire sur un tag NFC</string>
    <string name="device_model_title">Modèle de l’appareil</string>
    <string name="device_name_title">Nom de l’appareil</string>
-    <string name="diagnostics_description">Envoyer des rapports de plantage et des événements d’utilisation anonymes pour nous aider à améliorer VniDrop. Vous pouvez désactiver cela à tout moment. Les invitations, chemins de fichiers et contenus de transfert ne sont jamais inclus.</string>
-    <string name="diagnostics_disabled_message">Le partage des diagnostics est désactivé.</string>
-    <string name="diagnostics_enabled_message">Le partage des diagnostics est activé.</string>
-    <string name="diagnostics_title">Partager les diagnostics</string>
    <string name="error_camera">L’accès à la caméra est nécessaire pour scanner un QR code.</string>
    <string name="error_device_info">Impossible de charger les informations de l’appareil.</string>
    <string name="error_destination_exists">Un fichier portant le même nom existe déjà dans la destination. Choisissez un autre dossier ou supprimez le fichier existant.</string>
--- a/shared/src/commonMain/composeResources/values-it/strings.xml
+++ b/shared/src/commonMain/composeResources/values-it/strings.xml
@@ -80,10 +80,6 @@
    <string name="button_write_nfc">Scrivi su tag NFC</string>
    <string name="device_model_title">Modello del dispositivo</string>
    <string name="device_name_title">Nome del dispositivo</string>
-    <string name="diagnostics_description">Invia report di arresto anomalo ed eventi d’uso anonimi per aiutarci a migliorare VniDrop. Può disattivarlo in qualsiasi momento. Inviti, percorsi dei file e contenuti dei trasferimenti non vengono mai inclusi.</string>
-    <string name="diagnostics_disabled_message">La condivisione dei dati diagnostici è disattivata.</string>
-    <string name="diagnostics_enabled_message">La condivisione dei dati diagnostici è attivata.</string>
-    <string name="diagnostics_title">Condividi dati diagnostici</string>
    <string name="error_camera">Per scansionare un codice QR è necessario l’accesso alla fotocamera.</string>
    <string name="error_device_info">Impossibile caricare le informazioni sul dispositivo.</string>
    <string name="error_destination_exists">Nella destinazione esiste già un file con lo stesso nome. Scelga un’altra cartella o rimuova il file esistente.</string>
--- a/shared/src/commonMain/composeResources/values-nl/strings.xml
+++ b/shared/src/commonMain/composeResources/values-nl/strings.xml
@@ -80,10 +80,6 @@
    <string name="button_write_nfc">Naar NFC-tag schrijven</string>
    <string name="device_model_title">Apparaatmodel</string>
    <string name="device_name_title">Apparaatnaam</string>
-    <string name="diagnostics_description">Verstuur anonieme crashrapporten en gebruiksgebeurtenissen zodat we VniDrop kunnen verbeteren. U kunt dit op elk moment uitschakelen. Uitnodigingen, bestandspaden en overdrachtsinhoud worden nooit meegestuurd.</string>
-    <string name="diagnostics_disabled_message">Het delen van diagnostische gegevens is uitgeschakeld.</string>
-    <string name="diagnostics_enabled_message">Het delen van diagnostische gegevens is ingeschakeld.</string>
-    <string name="diagnostics_title">Diagnostische gegevens delen</string>
    <string name="error_camera">Voor het scannen van een QR-code is toegang tot de camera vereist.</string>
    <string name="error_device_info">Apparaatgegevens konden niet worden geladen.</string>
    <string name="error_destination_exists">Er staat al een bestand met dezelfde naam in de doelmap. Kies een andere map of verwijder het bestaande bestand.</string>
--- a/shared/src/commonMain/composeResources/values-pl/strings.xml
+++ b/shared/src/commonMain/composeResources/values-pl/strings.xml
@@ -80,10 +80,6 @@
    <string name="button_write_nfc">Zapisz na tagu NFC</string>
    <string name="device_model_title">Model urządzenia</string>
    <string name="device_name_title">Nazwa urządzenia</string>
-    <string name="diagnostics_description">Wysyłaj anonimowe raporty o awariach i zdarzenia użytkowania, aby pomóc nam ulepszać VniDrop. Możesz to wyłączyć w dowolnej chwili. Zaproszenia, ścieżki plików i zawartość transferów nigdy nie są dołączane.</string>
-    <string name="diagnostics_disabled_message">Udostępnianie diagnostyki jest wyłączone.</string>
-    <string name="diagnostics_enabled_message">Udostępnianie diagnostyki jest włączone.</string>
-    <string name="diagnostics_title">Udostępniaj diagnostykę</string>
    <string name="error_camera">Do zeskanowania kodu QR wymagany jest dostęp do aparatu.</string>
    <string name="error_device_info">Nie udało się wczytać informacji o urządzeniu.</string>
    <string name="error_destination_exists">W miejscu docelowym istnieje już plik o tej samej nazwie. Wybierz inny folder lub usuń istniejący plik.</string>
--- a/shared/src/commonMain/composeResources/values-pt/strings.xml
+++ b/shared/src/commonMain/composeResources/values-pt/strings.xml
@@ -80,10 +80,6 @@
    <string name="button_write_nfc">Escrever em etiqueta NFC</string>
    <string name="device_model_title">Modelo do dispositivo</string>
    <string name="device_name_title">Nome do dispositivo</string>
-    <string name="diagnostics_description">Enviar relatórios de falhas e eventos de utilização anónimos para nos ajudar a melhorar o VniDrop. Pode desativar isto a qualquer momento. Convites, caminhos de ficheiros e conteúdos das transferências nunca são incluídos.</string>
-    <string name="diagnostics_disabled_message">A partilha de diagnósticos está desativada.</string>
-    <string name="diagnostics_enabled_message">A partilha de diagnósticos está ativada.</string>
-    <string name="diagnostics_title">Partilhar diagnósticos</string>
    <string name="error_camera">É necessário acesso à câmara para ler um código QR.</string>
    <string name="error_device_info">Não foi possível carregar as informações do dispositivo.</string>
    <string name="error_destination_exists">Já existe um ficheiro com o mesmo nome no destino. Escolha outra pasta ou remova o ficheiro existente.</string>
--- a/shared/src/commonMain/composeResources/values-ru/strings.xml
+++ b/shared/src/commonMain/composeResources/values-ru/strings.xml
@@ -80,10 +80,6 @@
    <string name="button_write_nfc">Записать на NFC-метку</string>
    <string name="device_model_title">Модель устройства</string>
    <string name="device_name_title">Имя устройства</string>
-    <string name="diagnostics_description">Отправлять анонимные отчёты о сбоях и события использования, чтобы помочь нам улучшать VniDrop. Вы можете отключить это в любой момент. Приглашения, пути к файлам и содержимое передач никогда не включаются.</string>
-    <string name="diagnostics_disabled_message">Передача диагностики отключена.</string>
-    <string name="diagnostics_enabled_message">Передача диагностики включена.</string>
-    <string name="diagnostics_title">Делиться диагностикой</string>
    <string name="error_camera">Для сканирования QR-кода требуется доступ к камере.</string>
    <string name="error_device_info">Не удалось загрузить сведения об устройстве.</string>
    <string name="error_destination_exists">В папке назначения уже есть файл с таким именем. Выберите другую папку или удалите существующий файл.</string>
--- a/shared/src/commonMain/composeResources/values/strings.xml
+++ b/shared/src/commonMain/composeResources/values/strings.xml
@@ -80,10 +80,6 @@
    <string name="button_write_nfc">Write to NFC tag</string>
    <string name="device_model_title">Device model</string>
    <string name="device_name_title">Device name</string>
-    <string name="diagnostics_description">Send anonymous crash reports and usage events so we can improve VniDrop. You can turn this off anytime. Invitations, file paths, and transfer contents are never included.</string>
-    <string name="diagnostics_disabled_message">Diagnostics sharing is off.</string>
-    <string name="diagnostics_enabled_message">Diagnostics sharing is on.</string>
-    <string name="diagnostics_title">Share diagnostics</string>
    <string name="error_camera">Camera access is required to scan a QR code.</string>
    <string name="error_device_info">Could not load device information.</string>
    <string name="error_destination_exists">A file with the same name already exists in the destination. Choose another folder or remove the existing file.</string>
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/App.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/App.kt
@@ -80,7 +80,6 @@ fun App(
 			graph.coreRepository,
 			graph.preferencesRepository,
 			graph.messages,
-			graph.diagnostics,
 		)
 	}
 	val sendViewModel = viewModel {
@@ -105,7 +104,6 @@ fun App(
 			dependencies.localNotificationService,
 			graph.messages,
 			graph.diagnostics.bugReports,
-			graph.diagnostics,
 		)
 	}
 	val appState by appViewModel.state.collectAsStateWithLifecycle()
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/AppGraph.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/AppGraph.kt
@@ -19,9 +19,6 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.cancel
-import kotlinx.coroutines.flow.drop
-import kotlinx.coroutines.flow.filter
-import kotlinx.coroutines.launch

 class AppGraph(
 	val dependencies: AppDependencies,
@@ -40,11 +37,9 @@ class AppGraph(
 			receiveFolder = dependencies.fileSystemService.defaultReceiveFolder(),
 			themeMode = ThemeMode.System,
 			notificationsEnabled = false,
-			diagnosticsEnabled = false,
 		),
 	)
 	val diagnostics = DiagnosticsCoordinator.create(
-		appDataDir = dependencies.environment.defaultCoreDataDir,
 		appVersion = dependencies.environment.appVersion,
 		platform = dependencies.environment.name,
 		preferencesRepository = preferencesRepository,
@@ -75,12 +70,6 @@ class AppGraph(
 	init {
 		AppLogger.initialize(dependencies.environment.defaultCoreDataDir)
 		diagnostics.start()
-		applicationScope.launch {
-			visibility.isForeground
-				.drop(1)
-				.filter { isForeground -> !isForeground }
-				.collect { diagnostics.telemetry.flush() }
-		}
 	}

 	fun close() {
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/BreadcrumbBuffer.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/BreadcrumbBuffer.kt
@@ -1,47 +0,0 @@
-package com.vnidrop.app.diagnostics
-
-import com.vnidrop.app.logging.platformNowMillis
-import kotlin.concurrent.atomics.AtomicReference
-import kotlin.concurrent.atomics.ExperimentalAtomicApi
-
-/**
- * Fixed-size ring of high-level app breadcrumbs for crash / bug context.
- * Always in-memory only; never auto-uploaded without policy + transport.
- *
- * Updates are best-effort under concurrency; losing a breadcrumb is preferable
- * to blocking a dying process on a lock.
- */
-@OptIn(ExperimentalAtomicApi::class)
-class BreadcrumbBuffer(
-	private val capacity: Int = DefaultCapacity,
-) {
-	init {
-		require(capacity > 0) { "capacity must be positive" }
-	}
-
-	private val items = AtomicReference<List<Breadcrumb>>(emptyList())
-
-	fun add(name: String, properties: Map<String, String> = emptyMap(), timestampMillis: Long = platformNowMillis()) {
-		val sanitizedName = sanitizeDiagnosticName(name)
-		if (sanitizedName.isBlank()) return
-		val crumb = Breadcrumb(
-			name = sanitizedName,
-			timestampMillis = timestampMillis,
-			properties = sanitizeDiagnosticProperties(properties),
-		)
-		while (true) {
-			val current = items.load()
-			if (items.compareAndSet(current, (current + crumb).takeLast(capacity))) return
-		}
-	}
-
-	fun snapshot(): List<Breadcrumb> = items.load()
-
-	fun clear() {
-		items.store(emptyList())
-	}
-
-	companion object {
-		const val DefaultCapacity = 40
-	}
-}
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/BugReportService.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/BugReportService.kt
@@ -21,7 +21,6 @@ data class BugReportDraft(
 class BugReportService(
 	private val preferencesRepository: PreferencesRepository,
 	private val transport: DiagnosticsTransport,
-	private val breadcrumbs: BreadcrumbBuffer,
 	private val appVersion: String,
 	private val platform: String,
 	private val logReader: () -> String = {
@@ -53,7 +52,6 @@ class BugReportService(
 				network = deviceInfo?.network?.takeUtf8Bytes(96),
 				batteryLevel = deviceInfo?.batteryLevel?.takeUtf8Bytes(64),
 			),
-			breadcrumbs = breadcrumbs.snapshot(),
 		)
 	}

--- a/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/CrashReporter.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/CrashReporter.kt
@@ -1,158 +0,0 @@
-package com.vnidrop.app.diagnostics
-
-import com.vnidrop.app.logging.AppLogger
-import com.vnidrop.app.logging.platformNowMillis
-import com.vnidrop.app.preferences.PreferencesRepository
-import com.vnidrop.app.util.randomUuidString
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.CancellationException
-import kotlinx.coroutines.flow.first
-import kotlinx.coroutines.launch
-import kotlin.concurrent.atomics.AtomicBoolean
-import kotlin.concurrent.atomics.AtomicReference
-import kotlin.concurrent.atomics.ExperimentalAtomicApi
-
-/**
- * Captures uncaught exceptions to disk, then uploads on a later launch when
- * diagnostics is enabled (and when a real [DiagnosticsTransport] is wired).
- */
-@OptIn(ExperimentalAtomicApi::class)
-class CrashReporter(
-	private val store: PendingCrashStore,
-	private val preferencesRepository: PreferencesRepository,
-	private val transport: DiagnosticsTransport,
-	private val breadcrumbs: BreadcrumbBuffer,
-	private val appVersion: String,
-	private val platform: String,
-	private val scope: CoroutineScope,
-) {
-	private val installed = AtomicBoolean(false)
-	private val observingPreferences = AtomicBoolean(false)
-	private val capturePolicy = AtomicReference(CrashCapturePolicy())
-
-	fun startObservingPreferences() {
-		if (!observingPreferences.compareAndSet(false, true)) return
-		scope.launch {
-			preferencesRepository.preferences.collect { prefs ->
-				capturePolicy.store(
-					CrashCapturePolicy(
-						installId = prefs.diagnosticsInstallId,
-						diagnosticsEnabled = prefs.diagnosticsEnabled,
-					),
-				)
-				if (!prefs.diagnosticsEnabled) {
-					runCatching(::deleteAllPending)
-				}
-			}
-		}
-	}
-
-	fun installUnhandledExceptionHandler() {
-		if (!DiagnosticsBuildConfig.INCLUDED) return
-		if (!installed.compareAndSet(false, true)) return
-		installPlatformCrashHook { throwable ->
-			capture(throwable)
-		}
-	}
-
-	fun capture(throwable: Throwable, diagnosticsEnabledOverride: Boolean? = null): CrashReport {
-		val policy = capturePolicy.load()
-		val report = CrashReport(
-			id = randomUuidString(),
-			timestampMillis = platformNowMillis(),
-			installId = sanitizeDiagnosticsInstallId(policy.installId),
-			appVersion = appVersion.takeUtf8Bytes(DiagnosticsJson.MaxAppVersionBytes),
-			platform = platform.takeUtf8Bytes(DiagnosticsJson.MaxPlatformBytes),
-			exceptionType = throwable::class.simpleName ?: "Throwable",
-			exceptionMessage = LogRedactor.redact(throwable.message.orEmpty()).takeUtf8Bytes(MaxMessageBytes),
-			stackTrace = LogRedactor.redact(throwable.stackTraceToString()).takeUtf8Bytes(MaxStackBytes),
-			breadcrumbs = breadcrumbs.snapshot(),
-			diagnosticsEnabledAtCapture = diagnosticsEnabledOverride ?: policy.diagnosticsEnabled,
-		)
-		if (report.diagnosticsEnabledAtCapture != false) {
-			runCatching { store.write(report) }
-			runCatching {
-				store.prune(
-					olderThanTimestampMillis = platformNowMillis() - LocalRetentionMillis,
-					maxCount = MaxLocalCrashCount,
-				)
-			}
-		}
-		AppLogger.error("crash", "captured crash ${report.id}", throwable)
-		return report
-	}
-
-	/**
-	 * Uploads pending crashes that were captured with diagnostics enabled.
-	 * Local files are deleted after successful delivery or bounded by local retention.
-	 */
-	suspend fun flushPending() {
-		store.prune(
-			olderThanTimestampMillis = platformNowMillis() - LocalRetentionMillis,
-			maxCount = MaxLocalCrashCount,
-		)
-		for (report in store.list()) {
-			val preferences = preferencesRepository.preferences.first()
-			if (!preferences.diagnosticsEnabled || capturePolicy.load().diagnosticsEnabled == false) {
-				deleteAllPending()
-				return
-			}
-			if (report.diagnosticsEnabledAtCapture == false) {
-				store.delete(report.id)
-				continue
-			}
-			val installId = sanitizeDiagnosticsInstallId(
-				preferences.diagnosticsInstallId.ifBlank {
-					preferencesRepository.ensureDiagnosticsInstallId()
-				},
-			)
-			val resolved = report.copy(
-				installId = report.installId.ifBlank { installId },
-				diagnosticsEnabledAtCapture = true,
-			)
-			if (resolved != report) store.write(resolved)
-			if (
-				!preferencesRepository.preferences.first().diagnosticsEnabled ||
-				capturePolicy.load().diagnosticsEnabled == false
-			) {
-				deleteAllPending()
-				return
-			}
-			val result = try {
-				transport.sendCrash(resolved)
-			} catch (cancelled: CancellationException) {
-				throw cancelled
-			} catch (error: Throwable) {
-				Result.failure(error)
-			}
-			if (result.isSuccess) {
-				store.delete(resolved.id)
-				continue
-			}
-			val error = result.exceptionOrNull()
-			if (error?.isPermanentDiagnosticsPayloadRejection() == true) {
-				store.delete(resolved.id)
-				continue
-			}
-			break
-		}
-	}
-
-	private fun deleteAllPending() {
-		store.list().forEach { report -> store.delete(report.id) }
-	}
-
-	companion object {
-		private const val MaxMessageBytes = 2_000
-		private const val MaxStackBytes = 32_000
-		private const val MaxLocalCrashCount = 20
-		private const val LocalRetentionMillis = 30L * 86_400_000L
-	}
-}
-
-private data class CrashCapturePolicy(
-	val installId: String = "",
-	val diagnosticsEnabled: Boolean? = null,
-)
-
-expect fun installPlatformCrashHook(onCrash: (Throwable) -> Unit)
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/DiagnosticsCoordinator.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/DiagnosticsCoordinator.kt
@@ -5,83 +5,43 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.launch

 /**
- * Owns diagnostics services for the app process: telemetry, crashes, bug reports.
+ * Owns user-initiated bug reports for the app process.
 *
- * When [DiagnosticsBuildConfig.INCLUDED] is false (compile-time), telemetry and
- * crash auto-reporting are never started; [bugReports] still works for support.
+ * Telemetry and crash auto-reporting were removed; only [bugReports] remains,
+ * and it only sends when the user submits a report from Settings.
 */
 class DiagnosticsCoordinator(
 	val preferencesRepository: PreferencesRepository,
 	val transport: DiagnosticsTransport,
-	val breadcrumbs: BreadcrumbBuffer,
-	val telemetry: TelemetryRecorder,
-	val crashReporter: CrashReporter,
 	val bugReports: BugReportService,
 	private val scope: CoroutineScope,
-	private val included: Boolean = DiagnosticsBuildConfig.INCLUDED,
 ) {
 	fun start() {
-		// Install id is useful for bug-report correlation even without telemetry.
+		// Install id is useful for bug-report correlation.
 		scope.launch {
 			preferencesRepository.ensureDiagnosticsInstallId()
 		}
-		if (!included) return
-		crashReporter.startObservingPreferences()
-		crashReporter.installUnhandledExceptionHandler()
-		scope.launch {
-			crashReporter.flushPending()
-		}
-	}
-
-	fun record(name: String, properties: Map<String, String> = emptyMap()) {
-		if (!included) return
-		telemetry.record(name, properties)
 	}

 	companion object {
 		fun create(
-			appDataDir: String,
 			appVersion: String,
 			platform: String,
 			preferencesRepository: PreferencesRepository,
 			scope: CoroutineScope,
 			transport: DiagnosticsTransport = NoOpDiagnosticsTransport(),
-			included: Boolean = DiagnosticsBuildConfig.INCLUDED,
 		): DiagnosticsCoordinator {
-			val breadcrumbs = BreadcrumbBuffer()
-			val crashStore = createPendingCrashStore(appDataDir)
-			val telemetry = TelemetryRecorder(
-				preferencesRepository = preferencesRepository,
-				transport = transport,
-				breadcrumbs = breadcrumbs,
-				scope = scope,
-				included = included,
-			)
-			val crashReporter = CrashReporter(
-				store = crashStore,
-				preferencesRepository = preferencesRepository,
-				transport = transport,
-				breadcrumbs = breadcrumbs,
-				appVersion = appVersion,
-				platform = platform,
-				scope = scope,
-			)
 			val bugReports = BugReportService(
 				preferencesRepository = preferencesRepository,
 				transport = transport,
-				breadcrumbs = breadcrumbs,
 				appVersion = appVersion,
 				platform = platform,
 			)
 			return DiagnosticsCoordinator(
 				preferencesRepository = preferencesRepository,
 				transport = transport,
-				breadcrumbs = breadcrumbs,
-				telemetry = telemetry,
-				crashReporter = crashReporter,
 				bugReports = bugReports,
 				scope = scope,
-				included = included,
 			)
 		}
 	}
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/DiagnosticsJson.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/DiagnosticsJson.kt
@@ -8,85 +8,6 @@ internal object DiagnosticsJson {
 	internal const val MaxInstallIdBytes = 80
 	internal const val MaxAppVersionBytes = 40
 	internal const val MaxPlatformBytes = 40
-	private const val MaxBreadcrumbsJsonBytes = 16_000
-	private const val MaxBreadcrumbs = 40
-	private const val SizedBatchId = "00000000-0000-4000-8000-000000000000"
-
-	fun eventsBody(
-		batchId: String,
-		installId: String,
-		appVersion: String,
-		platform: String,
-		events: List<TelemetryEvent>,
-	): String = buildString {
-		append('{')
-		appendJsonField("batchId", batchId)
-		append(',')
-		appendJsonField("installId", installId)
-		append(',')
-		appendJsonField("appVersion", appVersion)
-		append(',')
-		appendJsonField("platform", platform)
-		append(',')
-		append("\"events\":[")
-		events.forEachIndexed { index, event ->
-			if (index > 0) append(',')
-			append('{')
-			appendJsonField("name", event.name)
-			append(',')
-			append("\"timestampMillis\":")
-			append(event.timestampMillis)
-			append(',')
-			append("\"schemaVersion\":")
-			append(event.schemaVersion)
-			append(',')
-			append("\"properties\":")
-			appendStringMap(event.properties)
-			append('}')
-		}
-		append("]}")
-	}
-
-	fun eventBatchFitsRequest(events: List<TelemetryEvent>): Boolean =
-		eventsBody(
-			batchId = SizedBatchId,
-			installId = "\u0000".repeat(MaxInstallIdBytes),
-			appVersion = "\u0000".repeat(MaxAppVersionBytes),
-			platform = "\u0000".repeat(MaxPlatformBytes),
-			events = events,
-		).encodeToByteArray().size <= MaxRequestBytes
-
-	fun crashBody(report: CrashReport): String = buildString {
-		append('{')
-		appendJsonField("id", report.id)
-		append(',')
-		append("\"timestampMillis\":")
-		append(report.timestampMillis)
-		append(',')
-		appendJsonField("installId", report.installId)
-		append(',')
-		appendJsonField("appVersion", report.appVersion)
-		append(',')
-		appendJsonField("platform", report.platform)
-		append(',')
-		appendJsonField("exceptionType", report.exceptionType)
-		append(',')
-		appendJsonField("exceptionMessage", report.exceptionMessage)
-		append(',')
-		appendJsonField("stackTrace", report.stackTrace)
-		append(',')
-		append("\"diagnosticsEnabledAtCapture\":")
-		append(requireNotNull(report.diagnosticsEnabledAtCapture) {
-			"crash consent must be resolved before delivery"
-		})
-		append(',')
-		append("\"schemaVersion\":")
-		append(report.schemaVersion)
-		append(',')
-		append("\"breadcrumbs\":")
-		appendBreadcrumbs(report.breadcrumbs)
-		append('}')
-	}

 	fun bugBody(report: BugReport): String {
 		val logs = if (report.includeLogs) report.logs else ""
@@ -149,47 +70,7 @@ internal object DiagnosticsJson {
 		appendJsonField("network", report.device.network.orEmpty())
 		append(',')
 		appendJsonField("batteryLevel", report.device.batteryLevel.orEmpty())
-		append("},")
-		append("\"breadcrumbs\":")
-		appendBreadcrumbs(report.breadcrumbs)
 		append('}')
-	}
-
-	private fun StringBuilder.appendBreadcrumbs(crumbs: List<Breadcrumb>) {
-		append('[')
-		var encodedBytes = 2
-		var appended = 0
-		for (crumb in crumbs) {
-			if (appended == MaxBreadcrumbs) break
-			val name = sanitizeDiagnosticName(crumb.name)
-			if (name.isBlank() || crumb.timestampMillis < 0) continue
-			val encoded = buildString {
-				append('{')
-				appendJsonField("name", name)
-				append(',')
-				append("\"timestampMillis\":")
-				append(crumb.timestampMillis)
-				append(',')
-				append("\"properties\":")
-				appendStringMap(crumb.properties)
-				append('}')
-			}
-			val additionBytes = encoded.encodeToByteArray().size + if (appended == 0) 0 else 1
-			if (encodedBytes + additionBytes > MaxBreadcrumbsJsonBytes) break
-			if (appended > 0) append(',')
-			append(encoded)
-			encodedBytes += additionBytes
-			appended += 1
-		}
-		append(']')
-	}
-
-	private fun StringBuilder.appendStringMap(map: Map<String, String>) {
-		append('{')
-		sanitizeDiagnosticProperties(map).entries.forEachIndexed { index, (key, value) ->
-			if (index > 0) append(',')
-			appendJsonField(key, value)
-		}
 		append('}')
 	}

--- a/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/DiagnosticsModels.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/DiagnosticsModels.kt
@@ -5,40 +5,6 @@ package com.vnidrop.app.diagnostics
 * intentionally abstracted; nothing here assumes a network backend.
 */

-data class TelemetryEvent(
-	val name: String,
-	val timestampMillis: Long,
-	val properties: Map<String, String> = emptyMap(),
-	val schemaVersion: Int = DiagnosticsSchemaVersion,
-)
-
-/** One idempotent upload unit; [id] remains stable when delivery is retried. */
-data class TelemetryBatch(
-	val id: String,
-	val events: List<TelemetryEvent>,
-)
-
-data class Breadcrumb(
-	val name: String,
-	val timestampMillis: Long,
-	val properties: Map<String, String> = emptyMap(),
-)
-
-data class CrashReport(
-	val id: String,
-	val timestampMillis: Long,
-	val installId: String,
-	val appVersion: String,
-	val platform: String,
-	val exceptionType: String,
-	val exceptionMessage: String,
-	val stackTrace: String,
-	val breadcrumbs: List<Breadcrumb>,
-	/** `null` only while a startup crash is waiting for the persisted preference to load. */
-	val diagnosticsEnabledAtCapture: Boolean?,
-	val schemaVersion: Int = DiagnosticsSchemaVersion,
-)
-
 data class DeviceSnapshot(
 	val deviceName: String?,
 	val deviceModel: String?,
@@ -60,7 +26,6 @@ data class BugReport(
 	val includeLogs: Boolean,
 	val logs: String,
 	val device: DeviceSnapshot,
-	val breadcrumbs: List<Breadcrumb>,
 	val schemaVersion: Int = DiagnosticsSchemaVersion,
 )

--- a/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/DiagnosticsSanitizer.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/DiagnosticsSanitizer.kt
@@ -1,30 +1,11 @@
 package com.vnidrop.app.diagnostics

-internal const val MaxDiagnosticProperties = 12
-internal const val MaxDiagnosticPropertyKeyBytes = 40
-internal const val MaxDiagnosticPropertyValueBytes = 128
-internal const val MaxDiagnosticNameBytes = 64
-
 internal fun sanitizeDiagnosticsInstallId(value: String): String {
 	val trimmed = value.trim()
 	if (trimmed.any { it.code < 0x20 || it.code == 0x7f }) return ""
 	return trimmed.takeUtf8Bytes(DiagnosticsJson.MaxInstallIdBytes)
 }

-internal fun sanitizeDiagnosticName(name: String): String =
-	name.takeUtf8Bytes(MaxDiagnosticNameBytes)
-
-internal fun sanitizeDiagnosticProperties(properties: Map<String, String>): Map<String, String> {
-	val sanitized = LinkedHashMap<String, String>(minOf(properties.size, MaxDiagnosticProperties))
-	for ((rawKey, rawValue) in properties) {
-		val key = rawKey.takeUtf8Bytes(MaxDiagnosticPropertyKeyBytes)
-		if (key.isEmpty() || key in sanitized) continue
-		sanitized[key] = LogRedactor.redact(rawValue).takeUtf8Bytes(MaxDiagnosticPropertyValueBytes)
-		if (sanitized.size == MaxDiagnosticProperties) break
-	}
-	return sanitized
-}
-
 internal fun String.takeUtf8Bytes(maxBytes: Int): String {
 	require(maxBytes >= 0) { "maxBytes must not be negative" }
 	val encoded = encodeToByteArray()
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/DiagnosticsTransport.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/DiagnosticsTransport.kt
@@ -1,50 +1,25 @@
 package com.vnidrop.app.diagnostics

-/** Network boundary for diagnostics; keep batching and validation client-side. */
+/** Network boundary for bug reports; keep validation client-side. */
 interface DiagnosticsTransport {
-	suspend fun sendEvents(batch: TelemetryBatch): Result<Unit>
-	suspend fun sendCrash(report: CrashReport): Result<Unit>
 	suspend fun sendBugReport(report: BugReport): Result<Unit>
 }

 internal class DiagnosticsUnavailableException : IllegalStateException("diagnostics delivery is not configured")

-internal fun Throwable.isPermanentDiagnosticsPayloadRejection(): Boolean =
-	this is DiagnosticsPayloadException ||
-		(this is DiagnosticsHttpException && statusCode in setOf(400, 413, 415, 422))
-
 /** Fails delivery without leaving the device. Used until a remote endpoint is configured. */
 class NoOpDiagnosticsTransport : DiagnosticsTransport {
-	override suspend fun sendEvents(batch: TelemetryBatch): Result<Unit> = unavailable()
-	override suspend fun sendCrash(report: CrashReport): Result<Unit> = unavailable()
-	override suspend fun sendBugReport(report: BugReport): Result<Unit> = unavailable()
-
-	private fun unavailable(): Result<Unit> = Result.failure(DiagnosticsUnavailableException())
+	override suspend fun sendBugReport(report: BugReport): Result<Unit> =
+		Result.failure(DiagnosticsUnavailableException())
 }

 /**
 * Test double that records calls and can fail on demand.
 */
 class RecordingDiagnosticsTransport : DiagnosticsTransport {
-	val eventBatches = mutableListOf<TelemetryBatch>()
-	val events: List<List<TelemetryEvent>>
-		get() = eventBatches.map(TelemetryBatch::events)
-	val crashes = mutableListOf<CrashReport>()
 	val bugReports = mutableListOf<BugReport>()
-	var eventsResult: Result<Unit> = Result.success(Unit)
-	var crashResult: Result<Unit> = Result.success(Unit)
 	var bugResult: Result<Unit> = Result.success(Unit)

-	override suspend fun sendEvents(batch: TelemetryBatch): Result<Unit> {
-		eventBatches += batch
-		return eventsResult
-	}
-
-	override suspend fun sendCrash(report: CrashReport): Result<Unit> {
-		crashes += report
-		return crashResult
-	}
-
 	override suspend fun sendBugReport(report: BugReport): Result<Unit> {
 		bugReports += report
 		return bugResult
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/HttpDiagnosticsTransport.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/HttpDiagnosticsTransport.kt
@@ -27,33 +27,6 @@ class HttpDiagnosticsTransport(
 		}
 	}

-	override suspend fun sendEvents(batch: TelemetryBatch): Result<Unit> {
-		if (batch.events.isEmpty()) return Result.success(Unit)
-		if (batch.events.size > TelemetryRecorder.MaxEventsPerBatch) {
-			return Result.failure(DiagnosticsPayloadException("diagnostics event batch is too large"))
-		}
-		if (batch.events.any { it.name.isBlank() || it.timestampMillis < 0 }) {
-			return Result.failure(DiagnosticsPayloadException("diagnostics event batch is invalid"))
-		}
-		val installId = sanitizeDiagnosticsInstallId(installIdProvider())
-		val body = DiagnosticsJson.eventsBody(
-			batch.id,
-			installId,
-			appVersion.takeUtf8Bytes(DiagnosticsJson.MaxAppVersionBytes),
-			platform.takeUtf8Bytes(DiagnosticsJson.MaxPlatformBytes),
-			batch.events,
-		)
-		return postJson("/v1/events", body, installId, batch.id)
-	}
-
-	override suspend fun sendCrash(report: CrashReport): Result<Unit> {
-		if (report.diagnosticsEnabledAtCapture == null) {
-			return Result.failure(DiagnosticsPayloadException("crash consent is unresolved"))
-		}
-		val body = DiagnosticsJson.crashBody(report)
-		return postJson("/v1/crashes", body, report.installId, report.id)
-	}
-
 	override suspend fun sendBugReport(report: BugReport): Result<Unit> {
 		val body = DiagnosticsJson.bugBody(report)
 		return postJson("/v1/bugs", body, report.installId, report.id)
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/PendingCrashStore.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/PendingCrashStore.kt
@@ -1,193 +0,0 @@
-package com.vnidrop.app.diagnostics
-
-/**
- * Durable crash envelopes written during process death and read on next launch.
- * Encoding is a simple line-oriented format (no kotlinx.serialization dependency).
- */
-interface PendingCrashStore {
-	fun write(report: CrashReport)
-	fun list(): List<CrashReport>
-	fun delete(id: String)
-	fun prune(olderThanTimestampMillis: Long, maxCount: Int)
-}
-
-expect fun createPendingCrashStore(appDataDir: String): PendingCrashStore
-
-internal object CrashReportCodec {
-	private const val FieldSep = "\u001f"
-	private const val RecordSep = "\u001e"
-	private const val Version2Prefix = "vnidrop-crash-v2\n"
-	private const val MaxEncodedChars = 512 * 1024
-
-	fun encode(report: CrashReport): String = buildString {
-		fun field(key: String, value: String) {
-			append(key)
-			append('=')
-			append(value.hexEncode())
-			append('\n')
-		}
-		append(Version2Prefix)
-		field("id", report.id)
-		field("ts", report.timestampMillis.toString())
-		field("install", report.installId)
-		field("app", report.appVersion)
-		field("platform", report.platform)
-		field("type", report.exceptionType)
-		field("message", report.exceptionMessage)
-		field("stack", report.stackTrace)
-		field(
-			"diag",
-			when (report.diagnosticsEnabledAtCapture) {
-				true -> "1"
-				false -> "0"
-				null -> "u"
-			},
-		)
-		field("schema", report.schemaVersion.toString())
-		val breadcrumbs = report.breadcrumbs.take(40)
-		field("crumb.count", breadcrumbs.size.toString())
-		breadcrumbs.forEachIndexed { crumbIndex, crumb ->
-			field("crumb.$crumbIndex.ts", crumb.timestampMillis.toString())
-			field("crumb.$crumbIndex.name", crumb.name)
-			val properties = crumb.properties.entries.take(MaxDiagnosticProperties)
-			field("crumb.$crumbIndex.prop.count", properties.size.toString())
-			properties.forEachIndexed { propertyIndex, (key, value) ->
-				field("crumb.$crumbIndex.prop.$propertyIndex.key", key)
-				field("crumb.$crumbIndex.prop.$propertyIndex.value", value)
-			}
-		}
-	}
-
-	fun decode(raw: String): CrashReport? {
-		if (raw.isBlank() || raw.length > MaxEncodedChars) return null
-		return if (raw.startsWith(Version2Prefix)) decodeVersion2(raw) else decodeLegacy(raw)
-	}
-
-	private fun decodeVersion2(raw: String): CrashReport? {
-		val map = linkedMapOf<String, String>()
-		for (part in raw.removePrefix(Version2Prefix).lineSequence()) {
-			if (part.isEmpty()) continue
-			val eq = part.indexOf('=')
-			if (eq <= 0) continue
-			val key = part.substring(0, eq)
-			val value = part.substring(eq + 1).hexDecode() ?: return null
-			map[key] = value
-		}
-		val crumbCount = map["crumb.count"]?.toIntOrNull()?.takeIf { it in 0..40 } ?: return null
-		val crumbs = buildList {
-			repeat(crumbCount) { crumbIndex ->
-				val timestamp = map["crumb.$crumbIndex.ts"]
-					?.toLongOrNull()
-					?.takeIf { it >= 0 }
-					?: return null
-				val name = map["crumb.$crumbIndex.name"]?.takeIf { it.isNotBlank() } ?: return null
-				val propertyCount = map["crumb.$crumbIndex.prop.count"]
-					?.toIntOrNull()
-					?.takeIf { it in 0..MaxDiagnosticProperties }
-					?: return null
-				val properties = buildMap {
-					repeat(propertyCount) { propertyIndex ->
-						val key = map["crumb.$crumbIndex.prop.$propertyIndex.key"] ?: return null
-						val value = map["crumb.$crumbIndex.prop.$propertyIndex.value"] ?: return null
-						put(key, value)
-					}
-				}
-				add(Breadcrumb(name = name, timestampMillis = timestamp, properties = properties))
-			}
-		}
-		return reportFromFields(map, crumbs)
-	}
-
-	private fun decodeLegacy(raw: String): CrashReport? {
-		val map = linkedMapOf<String, String>()
-		for (part in raw.split(FieldSep)) {
-			if (part.isEmpty()) continue
-			val eq = part.indexOf('=')
-			if (eq <= 0) continue
-			val key = part.substring(0, eq)
-			val value = part.substring(eq + 1)
-				.replace("\\n", "\n")
-				.replace("\\r", "\r")
-			map[key] = value
-		}
-		val crumbs = map["crumbs"].orEmpty()
-			.split(RecordSep)
-			.filter { it.isNotBlank() }
-			.mapNotNull { entry ->
-				val pieces = entry.split('|', limit = 3)
-				if (pieces.size < 2) return@mapNotNull null
-				val ts = pieces[0].toLongOrNull()?.takeIf { it >= 0 } ?: return@mapNotNull null
-				val name = pieces[1].takeIf { it.isNotBlank() } ?: return@mapNotNull null
-				val props = if (pieces.size > 2 && pieces[2].isNotBlank()) {
-					pieces[2].split(',').mapNotNull { kv ->
-						val colon = kv.indexOf(':')
-						if (colon <= 0) null
-						else kv.substring(0, colon) to kv.substring(colon + 1)
-					}.toMap()
-				} else {
-					emptyMap()
-				}
-				Breadcrumb(name = name, timestampMillis = ts, properties = props)
-			}
-		return reportFromFields(map, crumbs)
-	}
-
-	private fun reportFromFields(
-		map: Map<String, String>,
-		crumbs: List<Breadcrumb>,
-	): CrashReport? {
-		val id = map["id"]?.takeIf(::isValidDiagnosticId) ?: return null
-		val timestamp = map["ts"]?.toLongOrNull()?.takeIf { it >= 0 } ?: return null
-		val exceptionType = map["type"]?.takeIf { it.isNotBlank() } ?: return null
-		val schemaVersion = map["schema"]?.toIntOrNull()
-			?.takeIf { it == DiagnosticsSchemaVersion }
-			?: return null
-		val diagnosticsEnabled: Boolean? = when (map["diag"]) {
-			"1" -> true
-			"0" -> false
-			"u" -> null
-			else -> return null
-		}
-		return CrashReport(
-			id = id,
-			timestampMillis = timestamp,
-			installId = map["install"].orEmpty(),
-			appVersion = map["app"].orEmpty(),
-			platform = map["platform"].orEmpty(),
-			exceptionType = exceptionType,
-			exceptionMessage = map["message"].orEmpty(),
-			stackTrace = map["stack"].orEmpty(),
-			breadcrumbs = crumbs,
-			diagnosticsEnabledAtCapture = diagnosticsEnabled,
-			schemaVersion = schemaVersion,
-		)
-	}
-}
-
-internal fun isValidDiagnosticId(id: String): Boolean =
-	DiagnosticIdPattern.matches(id)
-
-private val DiagnosticIdPattern =
-	Regex("^[0-9a-fA-F]{8}(?:-[0-9a-fA-F]{4}){3}-[0-9a-fA-F]{12}$")
-
-private fun String.hexEncode(): String {
-	val digits = "0123456789abcdef"
-	return buildString(length * 2) {
-		for (byte in this@hexEncode.encodeToByteArray()) {
-			val value = byte.toInt() and 0xff
-			append(digits[value ushr 4])
-			append(digits[value and 0x0f])
-		}
-	}
-}
-
-private fun String.hexDecode(): String? {
-	if (length % 2 != 0) return null
-	val bytes = ByteArray(length / 2)
-	for (index in bytes.indices) {
-		val high = this[index * 2].digitToIntOrNull(16) ?: return null
-		val low = this[index * 2 + 1].digitToIntOrNull(16) ?: return null
-		bytes[index] = ((high shl 4) or low).toByte()
-	}
-	return runCatching { bytes.decodeToString(throwOnInvalidSequence = true) }.getOrNull()
-}
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/TelemetryRecorder.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/diagnostics/TelemetryRecorder.kt
@@ -1,216 +0,0 @@
-package com.vnidrop.app.diagnostics
-
-import com.vnidrop.app.logging.platformNowMillis
-import com.vnidrop.app.preferences.PreferencesRepository
-import com.vnidrop.app.util.randomUuidString
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.CancellationException
-import kotlinx.coroutines.channels.Channel
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.flow.distinctUntilChanged
-import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.sync.Mutex
-import kotlinx.coroutines.sync.withLock
-import kotlinx.coroutines.withTimeoutOrNull
-import kotlin.concurrent.atomics.AtomicReference
-import kotlin.concurrent.atomics.ExperimentalAtomicApi
-
-/**
- * Product telemetry: sparse events, gated by diagnostics opt-in.
- * Events are buffered and flushed in batches when transport is available.
- */
-@OptIn(ExperimentalAtomicApi::class)
-class TelemetryRecorder(
-	private val preferencesRepository: PreferencesRepository,
-	private val transport: DiagnosticsTransport,
-	private val breadcrumbs: BreadcrumbBuffer,
-	private val scope: CoroutineScope,
-	private val maxBufferSize: Int = DefaultMaxBuffer,
-	private val flushThreshold: Int = DefaultFlushThreshold,
-	private val flushIntervalMillis: Long = DefaultFlushIntervalMillis,
-	private val retryBackoffMillis: Long = DefaultRetryBackoffMillis,
-	private val automaticRetryCount: Int = DefaultAutomaticRetryCount,
-	private val included: Boolean = true,
-) {
-	private val bufferMutex = Mutex()
-	private val state = AtomicReference(TelemetryState())
-	private val flushSignals = Channel<Unit>(Channel.CONFLATED)
-
-	init {
-		require(maxBufferSize > 0) { "maxBufferSize must be positive" }
-		require(flushThreshold > 0) { "flushThreshold must be positive" }
-		require(flushIntervalMillis > 0) { "flushIntervalMillis must be positive" }
-		require(retryBackoffMillis > 0) { "retryBackoffMillis must be positive" }
-		require(automaticRetryCount >= 0) { "automaticRetryCount must not be negative" }
-		if (included) {
-			scope.launch {
-				preferencesRepository.preferences
-					.map { it.diagnosticsEnabled }
-					.distinctUntilChanged()
-					.collect { isEnabled ->
-						updateState { current ->
-							if (isEnabled) current.copy(enabled = true) else TelemetryState(enabled = false)
-						}
-						flushSignals.trySend(Unit)
-					}
-			}
-			scope.launch { runAutomaticFlushes() }
-		}
-	}
-
-	fun record(name: String, properties: Map<String, String> = emptyMap()) {
-		if (!included) return
-		val sanitizedName = sanitizeDiagnosticName(name)
-		if (sanitizedName.isBlank()) return
-		val sanitizedProperties = sanitizeDiagnosticProperties(properties)
-		breadcrumbs.add(sanitizedName, sanitizedProperties)
-		val event = TelemetryEvent(
-			name = sanitizedName,
-			timestampMillis = platformNowMillis(),
-			properties = sanitizedProperties,
-		)
-		while (true) {
-			val current = state.load()
-			if (current.enabled == false) return
-			val remainingCapacity =
-				(maxBufferSize - current.retryBatch?.events.orEmpty().size).coerceAtLeast(0)
-			val nextBuffer = (current.buffer + event).takeLast(remainingCapacity)
-			if (state.compareAndSet(current, current.copy(buffer = nextBuffer))) {
-				flushSignals.trySend(Unit)
-				return
-			}
-		}
-	}
-
-	suspend fun flush(): Result<Unit> {
-		return bufferMutex.withLock {
-			var discardedFailure: Throwable? = null
-			var outcome: Result<Unit>? = null
-			while (outcome == null) {
-				val current = state.load()
-				if (current.enabled != true) return@withLock Result.success(Unit)
-				val pendingRetry = current.retryBatch
-				val events = if (pendingRetry == null) nextBatchEvents(current.buffer) else emptyList()
-				if (pendingRetry == null && events.isEmpty()) {
-					outcome = discardedFailure?.let { Result.failure(it) } ?: Result.success(Unit)
-					continue
-				}
-				val batch: TelemetryBatch
-				if (pendingRetry != null) {
-					batch = pendingRetry
-				} else {
-					val prepared = TelemetryBatch(id = randomUuidString(), events = events)
-					val next = current.copy(
-						buffer = current.buffer.drop(events.size),
-						retryBatch = prepared,
-					)
-					if (!state.compareAndSet(current, next)) continue
-					batch = prepared
-				}
-				if (state.load().retryBatch != batch) continue
-				val result = try {
-					transport.sendEvents(batch)
-				} catch (cancelled: CancellationException) {
-					throw cancelled
-				} catch (error: Throwable) {
-					Result.failure(error)
-				}
-				if (result.isSuccess) {
-					clearRetryBatch(batch)
-					continue
-				}
-				val error = result.exceptionOrNull() ?: IllegalStateException("diagnostics event delivery failed")
-				if (error.isPermanentDiagnosticsPayloadRejection()) {
-					clearRetryBatch(batch)
-					discardedFailure = discardedFailure ?: error
-					continue
-				}
-				outcome = result
-			}
-			checkNotNull(outcome)
-		}
-	}
-
-	private fun nextBatchEvents(events: List<TelemetryEvent>): List<TelemetryEvent> {
-		if (events.isEmpty()) return emptyList()
-		var minimum = 1
-		var maximum = minOf(events.size, MaxEventsPerBatch)
-		var accepted = 1
-		while (minimum <= maximum) {
-			val candidateSize = minimum + (maximum - minimum) / 2
-			if (DiagnosticsJson.eventBatchFitsRequest(events.take(candidateSize))) {
-				accepted = candidateSize
-				minimum = candidateSize + 1
-			} else {
-				maximum = candidateSize - 1
-			}
-		}
-		return events.take(accepted)
-	}
-
-	fun pendingCount(): Int {
-		val current = state.load()
-		return current.retryBatch?.events.orEmpty().size + current.buffer.size
-	}
-
-	private suspend fun runAutomaticFlushes() {
-		while (true) {
-			flushSignals.receive()
-			var retries = 0
-			while (true) {
-				val current = state.load()
-				if (current.enabled != true || pendingCount() == 0) break
-				if (current.retryBatch == null && pendingCount() < flushThreshold) {
-					val signalled = withTimeoutOrNull(flushIntervalMillis) {
-						flushSignals.receive()
-						true
-					} ?: false
-					if (signalled) continue
-				}
-
-				val result = flush()
-				if (result.isSuccess || pendingCount() == 0) {
-					retries = 0
-					continue
-				}
-				val error = result.exceptionOrNull()
-				if (error?.isPermanentDiagnosticsPayloadRejection() == true || retries >= automaticRetryCount) {
-					break
-				}
-				retries += 1
-				delay(retryBackoffMillis)
-			}
-		}
-	}
-
-	private fun clearRetryBatch(batch: TelemetryBatch) {
-		while (true) {
-			val current = state.load()
-			if (current.retryBatch != batch) return
-			if (state.compareAndSet(current, current.copy(retryBatch = null))) return
-		}
-	}
-
-	private fun updateState(update: (TelemetryState) -> TelemetryState) {
-		while (true) {
-			val current = state.load()
-			if (state.compareAndSet(current, update(current))) return
-		}
-	}
-
-	companion object {
-		const val DefaultMaxBuffer = 100
-		const val DefaultFlushThreshold = 20
-		const val MaxEventsPerBatch = 50
-		const val DefaultFlushIntervalMillis = 30_000L
-		const val DefaultRetryBackoffMillis = 30_000L
-		const val DefaultAutomaticRetryCount = 3
-	}
-}
-
-private data class TelemetryState(
-	val enabled: Boolean? = null,
-	val buffer: List<TelemetryEvent> = emptyList(),
-	val retryBatch: TelemetryBatch? = null,
-)
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/feature/app/AppViewModel.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/feature/app/AppViewModel.kt
@@ -6,7 +6,6 @@ import com.vnidrop.app.PlatformEnvironment
 import com.vnidrop.app.AppDependencies
 import com.vnidrop.app.AppGraph
 import com.vnidrop.app.core.CoreGateway
-import com.vnidrop.app.diagnostics.DiagnosticsCoordinator
 import com.vnidrop.app.logging.AppLogger
 import com.vnidrop.app.preferences.PreferencesRepository
 import com.vnidrop.app.ui.feedback.UiMessageController
@@ -38,14 +37,12 @@ class AppViewModel(
 	private val repository: CoreGateway,
 	preferencesRepository: PreferencesRepository,
 	private val messages: UiMessageController,
-	private val diagnostics: DiagnosticsCoordinator? = null,
 ) : ViewModel() {
 	private val _state = MutableStateFlow(AppState())
 	val state: StateFlow<AppState> = _state.asStateFlow()

 	init {
 		AppLogger.info("lifecycle", "app started", mapOf("platform" to environment.name))
-		diagnostics?.record("app_open", mapOf("platform" to environment.name, "version" to environment.appVersion))
 		viewModelScope.launch {
 			val relaySettings = preferencesRepository.preferences.first().relaySettings
 			repository.initialize(environment.defaultCoreDataDir, relaySettings).onFailure(messages::error)
@@ -59,6 +56,5 @@ class AppViewModel(

 	fun selectDestination(destination: AppDestination) {
 		_state.update { it.copy(destination = destination) }
-		diagnostics?.record("nav_select", mapOf("destination" to destination.name))
 	}
 }
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/feature/settings/AboutSettings.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/feature/settings/AboutSettings.kt
@@ -18,7 +18,6 @@ import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
-import com.vnidrop.app.diagnostics.DiagnosticsBuildConfig
 import com.vnidrop.app.ui.icons.AppIcon
 import com.vnidrop.app.ui.icons.PlatformIcon
 import com.vnidrop.app.ui.theme.LocalVniDropColors
@@ -46,18 +45,15 @@ import vnidrop.shared.generated.resources.about_privacy_title
 import vnidrop.shared.generated.resources.about_tagline
 import vnidrop.shared.generated.resources.about_title
 import vnidrop.shared.generated.resources.device_model_title
-import vnidrop.shared.generated.resources.diagnostics_description
-import vnidrop.shared.generated.resources.diagnostics_title
 import vnidrop.shared.generated.resources.os_version_title
 import vnidrop.shared.generated.resources.value_unavailable
 import vnidrop.shared.generated.resources.version_title

-private const val PrivacyPolicyUrl = "https://github.com/vnidrop/vnidrop"
+private val PrivacyPolicyUrl = com.vnidrop.app.AppConfig.PRIVACY_POLICY_URL

@Composable
 internal fun AboutSettings(
 	state: SettingsState,
-	onDiagnosticsChanged: (Boolean) -> Unit,
 	onReportBug: () -> Unit,
 	onBack: () -> Unit,
 	showBack: Boolean,
@@ -130,17 +126,6 @@ internal fun AboutSettings(
 		}

 		SettingsGroup {
-			if (DiagnosticsBuildConfig.INCLUDED) {
-				SettingsToggleRow(
-					icon = AppIcon.Info,
-					title = stringResource(Res.string.diagnostics_title),
-					description = stringResource(Res.string.diagnostics_description),
-					checked = state.diagnosticsEnabled,
-					enabled = true,
-					onCheckedChange = onDiagnosticsChanged,
-				)
-				SettingsDivider()
-			}
 			SettingsRow(
 				icon = AppIcon.Bug,
 				title = stringResource(Res.string.about_bug_report),
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/feature/settings/SettingsRoute.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/feature/settings/SettingsRoute.kt
@@ -33,7 +33,6 @@ fun SettingsRoute(viewModel: SettingsViewModel, windowClass: WindowClass) {
 		onResetFolder = viewModel::resetReceiveFolder,
 		onNotificationsChanged = viewModel::setNotificationsEnabled,
 		onOpenNotificationSettings = viewModel::openNotificationSettings,
-		onDiagnosticsChanged = viewModel::setDiagnosticsEnabled,
 		onBugWhatChanged = viewModel::setBugWhatHappened,
 		onBugExpectedChanged = viewModel::setBugExpected,
 		onBugStepsChanged = viewModel::setBugSteps,
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/feature/settings/SettingsScreen.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/feature/settings/SettingsScreen.kt
@@ -23,7 +23,6 @@ fun SettingsScreen(
 	onResetFolder: () -> Unit,
 	onNotificationsChanged: (Boolean) -> Unit,
 	onOpenNotificationSettings: () -> Unit,
-	onDiagnosticsChanged: (Boolean) -> Unit,
 	onBugWhatChanged: (String) -> Unit,
 	onBugExpectedChanged: (String) -> Unit,
 	onBugStepsChanged: (String) -> Unit,
@@ -62,7 +61,6 @@ fun SettingsScreen(
 					onResetFolder = onResetFolder,
 					onNotificationsChanged = onNotificationsChanged,
 					onOpenNotificationSettings = onOpenNotificationSettings,
-					onDiagnosticsChanged = onDiagnosticsChanged,
 					onBugWhatChanged = onBugWhatChanged,
 					onBugExpectedChanged = onBugExpectedChanged,
 					onBugStepsChanged = onBugStepsChanged,
@@ -105,7 +103,6 @@ fun SettingsScreen(
 				onResetFolder = onResetFolder,
 				onNotificationsChanged = onNotificationsChanged,
 				onOpenNotificationSettings = onOpenNotificationSettings,
-				onDiagnosticsChanged = onDiagnosticsChanged,
 				onBugWhatChanged = onBugWhatChanged,
 				onBugExpectedChanged = onBugExpectedChanged,
 				onBugStepsChanged = onBugStepsChanged,
@@ -140,7 +137,6 @@ private fun SettingsSectionContent(
 	onResetFolder: () -> Unit,
 	onNotificationsChanged: (Boolean) -> Unit,
 	onOpenNotificationSettings: () -> Unit,
-	onDiagnosticsChanged: (Boolean) -> Unit,
 	onBugWhatChanged: (String) -> Unit,
 	onBugExpectedChanged: (String) -> Unit,
 	onBugStepsChanged: (String) -> Unit,
@@ -184,7 +180,6 @@ private fun SettingsSectionContent(
 		)
 		SettingsSection.About -> AboutSettings(
 			state = state,
-			onDiagnosticsChanged = onDiagnosticsChanged,
 			onReportBug = { onSectionSelected(SettingsSection.BugReport) },
 			onBack = onBack,
 			showBack = showBack,
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/feature/settings/SettingsViewModel.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/feature/settings/SettingsViewModel.kt
@@ -16,8 +16,6 @@ import com.vnidrop.app.core.TransferStatus
 import com.vnidrop.app.core.usesCustomRelayUrls
 import com.vnidrop.app.diagnostics.BugReportDraft
 import com.vnidrop.app.diagnostics.BugReportService
-import com.vnidrop.app.diagnostics.DiagnosticsBuildConfig
-import com.vnidrop.app.diagnostics.DiagnosticsCoordinator
 import com.vnidrop.app.notifications.LocalNotificationService
 import com.vnidrop.app.notifications.NotificationPermission
 import com.vnidrop.app.preferences.PreferencesRepository
@@ -43,8 +41,6 @@ import vnidrop.shared.generated.resources.bug_report_missing_what
 import vnidrop.shared.generated.resources.bug_report_submit_failed
 import vnidrop.shared.generated.resources.bug_report_submitted
 import vnidrop.shared.generated.resources.button_open_settings
-import vnidrop.shared.generated.resources.diagnostics_disabled_message
-import vnidrop.shared.generated.resources.diagnostics_enabled_message
 import vnidrop.shared.generated.resources.notifications_enabled_message
 import vnidrop.shared.generated.resources.notifications_permission_denied
 import vnidrop.shared.generated.resources.notifications_settings_open_failed
@@ -102,7 +98,6 @@ data class SettingsState(
 	val endpointId: String? = null,
 	val notificationsEnabled: Boolean = false,
 	val notificationPermission: NotificationPermission = NotificationPermission.NotDetermined,
-	val diagnosticsEnabled: Boolean = false,
 	val deviceInfo: DeviceInfo? = null,
 	val appVersion: String = "",
 	val isLoadingDeviceInfo: Boolean = false,
@@ -138,8 +133,6 @@ class SettingsViewModel(
 	private val notifications: LocalNotificationService,
 	private val messages: UiMessageController,
 	private val bugReports: BugReportService,
-	private val diagnostics: DiagnosticsCoordinator? = null,
-	private val diagnosticsIncluded: Boolean = DiagnosticsBuildConfig.INCLUDED,
 ) : ViewModel() {
 	private val _state = MutableStateFlow(
 		SettingsState(
@@ -167,7 +160,6 @@ class SettingsViewModel(
 						receiveFolder = receiveFolder,
 						themeMode = preferences.themeMode,
 						notificationsEnabled = preferences.notificationsEnabled,
-						diagnosticsEnabled = preferences.diagnosticsEnabled,
 						savedRelaySettings = preferences.relaySettings,
 						relayMode = if (hasLocalRelayDraft) current.relayMode else preferences.relaySettings.mode,
 						relayUrls = if (hasLocalRelayDraft) {
@@ -512,25 +504,6 @@ class SettingsViewModel(
 		}
 	}

-	fun setDiagnosticsEnabled(enabled: Boolean) {
-		if (!diagnosticsIncluded) return
-		viewModelScope.launch {
-			preferencesRepository.setDiagnosticsEnabled(enabled)
-			diagnostics?.record(
-				if (enabled) "diagnostics_enabled" else "diagnostics_disabled",
-			)
-			messages.show(
-				UiMessage(
-					UiText.Resource(
-						if (enabled) Res.string.diagnostics_enabled_message
-						else Res.string.diagnostics_disabled_message,
-					),
-					UiMessageTone.Success,
-				),
-			)
-		}
-	}
-
 	fun setBugWhatHappened(value: String) = _state.update { it.copy(bugWhatHappened = value) }
 	fun setBugExpected(value: String) = _state.update { it.copy(bugExpected = value) }
 	fun setBugSteps(value: String) = _state.update { it.copy(bugSteps = value) }
@@ -565,7 +538,6 @@ class SettingsViewModel(
 				)
 				result.fold(
 					onSuccess = {
-						diagnostics?.record("bug_report_submitted")
 						_state.update {
 							it.copy(
 								isSubmittingBugReport = false,
--- a/shared/src/commonMain/kotlin/com/vnidrop/app/preferences/AppPreferencesRepository.kt
+++ b/shared/src/commonMain/kotlin/com/vnidrop/app/preferences/AppPreferencesRepository.kt
@@ -24,9 +24,7 @@ data class AppPreferences(
 	val receiveFolder: ReceiveFolder,
 	val themeMode: ThemeMode,
 	val notificationsEnabled: Boolean,
-	/** Master opt-in for automatic telemetry + crash upload. Bug reports remain available always. */
-	val diagnosticsEnabled: Boolean = false,
-	/** Stable anonymous install id; never an account or advertising id. */
+	/** Stable anonymous install id for bug-report correlation; never an account or advertising id. */
 	val diagnosticsInstallId: String = "",
 	val relaySettings: RelaySettings = RelaySettings(),
 )
@@ -36,7 +34,6 @@ class AppPreferencesDefaults(
 	val receiveFolder: ReceiveFolder,
 	val themeMode: ThemeMode,
 	val notificationsEnabled: Boolean = false,
-	val diagnosticsEnabled: Boolean = false,
 )

 interface PreferencesRepository {
@@ -46,7 +43,6 @@ interface PreferencesRepository {
 	suspend fun resetReceiveFolder()
 	suspend fun setThemeMode(mode: ThemeMode)
 	suspend fun setNotificationsEnabled(enabled: Boolean)
-	suspend fun setDiagnosticsEnabled(enabled: Boolean)
 	suspend fun setRelaySettings(settings: RelaySettings)
 	/** Ensures a durable install id exists and returns it. */
 	suspend fun ensureDiagnosticsInstallId(): String
@@ -83,7 +79,6 @@ class AppPreferencesRepository(
 				receiveFolder = resolveReceiveFolder(prefs, defaults.receiveFolder),
 				themeMode = prefs[PreferenceKeys.ThemeMode]?.let { themeModeOrNull(it) } ?: defaults.themeMode,
 				notificationsEnabled = prefs[PreferenceKeys.NotificationsEnabled] ?: defaults.notificationsEnabled,
-				diagnosticsEnabled = prefs[PreferenceKeys.DiagnosticsEnabled] ?: defaults.diagnosticsEnabled,
 				diagnosticsInstallId = prefs[PreferenceKeys.DiagnosticsInstallId].orEmpty(),
 				relaySettings = RelaySettings(
 					mode = relayMode,
@@ -122,12 +117,6 @@ class AppPreferencesRepository(
 		}
 	}

-	override suspend fun setDiagnosticsEnabled(enabled: Boolean) {
-		dataStore.edit { prefs ->
-			prefs[PreferenceKeys.DiagnosticsEnabled] = enabled
-		}
-	}
-
 	override suspend fun setRelaySettings(settings: RelaySettings) {
 		dataStore.edit { prefs ->
 			prefs[PreferenceKeys.RelayMode] = settings.mode.name
@@ -160,7 +149,6 @@ private object PreferenceKeys {
 	val ReceiveFolderDisplayName = stringPreferencesKey("receive_folder_display_name")
 	val ThemeMode = stringPreferencesKey("theme_mode")
 	val NotificationsEnabled = booleanPreferencesKey("notifications_enabled")
-	val DiagnosticsEnabled = booleanPreferencesKey("diagnostics_enabled")
 	val DiagnosticsInstallId = stringPreferencesKey("diagnostics_install_id")
 	val RelayMode = stringPreferencesKey("relay_mode")
 	val RelayUrls = stringPreferencesKey("relay_urls")
--- a/shared/src/commonTest/kotlin/com/vnidrop/app/diagnostics/DiagnosticsTest.kt
+++ b/shared/src/commonTest/kotlin/com/vnidrop/app/diagnostics/DiagnosticsTest.kt
@@ -4,83 +4,25 @@ import com.vnidrop.app.DeviceInfo
 import com.vnidrop.app.core.ReceiveFolder
 import com.vnidrop.app.core.ReceiveFolderKind
 import com.vnidrop.app.preferences.AppPreferences
-import com.vnidrop.app.preferences.PreferencesRepository
 import com.vnidrop.app.support.FakePreferencesRepository
 import com.vnidrop.app.ui.theme.ThemeMode
 import kotlinx.coroutines.CancellationException
-import kotlinx.coroutines.CompletableDeferred
-import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.ExperimentalCoroutinesApi
-import kotlinx.coroutines.coroutineScope
-import kotlinx.coroutines.flow.emitAll
-import kotlinx.coroutines.flow.flow
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.test.TestScope
-import kotlinx.coroutines.test.UnconfinedTestDispatcher
-import kotlinx.coroutines.test.advanceTimeBy
-import kotlinx.coroutines.test.advanceUntilIdle
-import kotlinx.coroutines.test.runCurrent
 import kotlinx.coroutines.test.runTest
 import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlin.test.assertFalse
 import kotlin.test.assertFailsWith
 import kotlin.test.assertIs
-import kotlin.test.assertNull
 import kotlin.test.assertTrue

@OptIn(ExperimentalCoroutinesApi::class)
 class DiagnosticsTest {
-	@Test
-	fun diagnosticsJsonEscapesAndShapesPayloads() {
-		val eventsJson = DiagnosticsJson.eventsBody(
-			batchId = "batch-1",
-			installId = "inst-1",
-			appVersion = "1.0",
-			platform = "Test",
-			events = listOf(
-				TelemetryEvent("app_open", 10L, mapOf("a" to "quote\"here")),
-			),
-		)
-		assertTrue(eventsJson.contains("\"batchId\":\"batch-1\""))
-		assertTrue(eventsJson.contains("\"installId\":\"inst-1\""))
-		assertTrue(eventsJson.contains("\"name\":\"app_open\""))
-		assertTrue(eventsJson.contains("quote\\\"here"))
-
-		val crashJson = DiagnosticsJson.crashBody(
-			CrashReport(
-				id = "c1",
-				timestampMillis = 1L,
-				installId = "inst",
-				appVersion = "1.0",
-				platform = "Test",
-				exceptionType = "E",
-				exceptionMessage = "line\nbreak",
-				stackTrace = "stack",
-				breadcrumbs = emptyList(),
-				diagnosticsEnabledAtCapture = true,
-			),
-		)
-		assertTrue(crashJson.contains("line\\nbreak"))
-		assertTrue(crashJson.contains("\"diagnosticsEnabledAtCapture\":true"))
-	}
-
 	@Test
 	fun diagnosticsJsonKeepsEscapedBugPayloadWithinWorkerLimit() {
-		val report = BugReport(
-			id = "b",
-			timestampMillis = 1L,
-			installId = "i",
-			appVersion = "1.0",
-			platform = "Test",
-			whatHappened = "w",
-			expected = "e",
-			steps = "",
-			contact = "",
-			includeLogs = true,
+		val report = bugReport(
 			logs = "\n".repeat(BugReportService.MaxLogBytes),
-			device = DeviceSnapshot(null, null, "OS", null, null),
-			breadcrumbs = emptyList(),
+			includeLogs = true,
 		)

 		val body = DiagnosticsJson.bugBody(report)
@@ -91,67 +33,24 @@ class DiagnosticsTest {
 	}

 	@Test
-	fun httpTransportPostsExpectedPaths() = runTest {
+	fun httpTransportPostsBugReportToExpectedPath() = runTest {
 		val calls = mutableListOf<Pair<String, String>>()
-		val acknowledgementIds = ArrayDeque(listOf("batch-1", "c", "b"))
 		val transport = HttpDiagnosticsTransport(
 			baseUrl = "https://diag.example",
 			ingestKey = "secret",
 			appVersion = "1.0",
 			platform = "Test",
-			installIdProvider = { "install-x" },
 			post = { url, headers, body ->
 				assertEquals("secret", headers["X-VniDrop-Key"])
 				calls += url to body
-				PlatformHttpResponse(
-					202,
-					"""{"ok":true,"id":"${acknowledgementIds.removeFirst()}","stored":1}""",
-				)
+				PlatformHttpResponse(202, """{"ok":true,"id":"b","stored":1}""")
 			},
 		)
-		val eventResult = transport.sendEvents(
-			TelemetryBatch("batch-1", listOf(TelemetryEvent("nav", 1L))),
-		)
-		assertTrue(eventResult.isSuccess)
-		assertEquals("https://diag.example/v1/events", calls[0].first)
-		assertTrue(calls[0].second.contains("install-x"))

-		val crashResult = transport.sendCrash(
-			CrashReport(
-				id = "c",
-				timestampMillis = 1L,
-				installId = "i",
-				appVersion = "1.0",
-				platform = "Test",
-				exceptionType = "E",
-				exceptionMessage = "m",
-				stackTrace = "s",
-				breadcrumbs = emptyList(),
-				diagnosticsEnabledAtCapture = true,
-			),
-		)
-		assertTrue(crashResult.isSuccess)
-		assertEquals("https://diag.example/v1/crashes", calls[1].first)
+		val bugResult = transport.sendBugReport(bugReport())

-		val bugResult = transport.sendBugReport(
-			BugReport(
-				id = "b",
-				timestampMillis = 1L,
-				installId = "i",
-				appVersion = "1.0",
-				platform = "Test",
-				whatHappened = "w",
-				expected = "e",
-				steps = "",
-				contact = "",
-				includeLogs = false,
-				logs = "",
-				device = DeviceSnapshot(null, null, "OS", null, null),
-				breadcrumbs = emptyList(),
-			),
-		)
 		assertTrue(bugResult.isSuccess)
-		assertEquals("https://diag.example/v1/bugs", calls[2].first)
+		assertEquals("https://diag.example/v1/bugs", calls.single().first)
 	}

 	@Test
@@ -162,12 +61,12 @@ class DiagnosticsTest {
 			post = { _, _, _ ->
 				PlatformHttpResponse(
 					202,
-					"""{"\u006f\u006b":true,"id":"batch-\u0031","metadata":{"stored":1,"flags":[true,null]}}""",
+					"""{"ok":true,"id":"b","metadata":{"stored":1,"flags":[true,null]}}""",
 				)
 			},
 		)

-		assertTrue(transport.sendEvents(TelemetryBatch("batch-1", listOf(TelemetryEvent("x", 1L)))).isSuccess)
+		assertTrue(transport.sendBugReport(bugReport()).isSuccess)
 	}

 	@Test
@@ -177,9 +76,7 @@ class DiagnosticsTest {
 			ingestKey = "secret",
 			post = { _, _, _ -> PlatformHttpResponse(401, """{"error":"unauthorized"}""") },
 		)
-		assertTrue(
-			transport.sendEvents(TelemetryBatch("batch-1", listOf(TelemetryEvent("x", 1L)))).isFailure,
-		)
+		assertTrue(transport.sendBugReport(bugReport()).isFailure)
 	}

 	@Test
@@ -191,7 +88,7 @@ class DiagnosticsTest {
 		)

 		assertFailsWith<CancellationException> {
-			transport.sendEvents(TelemetryBatch("batch-1", listOf(TelemetryEvent("x", 1))))
+			transport.sendBugReport(bugReport())
 		}
 	}

@@ -203,7 +100,7 @@ class DiagnosticsTest {
 				PlatformHttpResponse(202, """{"ok":false}"""),
 				PlatformHttpResponse(202, """{,"ok":true}"""),
 				PlatformHttpResponse(202, """{"ok":true,"id":"different"}"""),
-				PlatformHttpResponse(202, """{"ok":true,"id":"batch-4","id":"batch-4"}"""),
+				PlatformHttpResponse(202, """{"ok":true,"id":"b","id":"b"}"""),
 			),
 		)
 		val transport = HttpDiagnosticsTransport(
@@ -212,10 +109,8 @@ class DiagnosticsTest {
 			post = { _, _, _ -> responses.removeFirst() },
 		)

-		repeat(5) { index ->
-			val result = transport.sendEvents(
-				TelemetryBatch("batch-$index", listOf(TelemetryEvent("x", 1L))),
-			)
+		repeat(5) {
+			val result = transport.sendBugReport(bugReport())
 			assertIs<DiagnosticsProtocolException>(result.exceptionOrNull())
 		}
 	}
@@ -224,11 +119,11 @@ class DiagnosticsTest {
 	fun httpTransportRejectsAmbiguousOrMalformedJsonAcknowledgement() = runTest {
 		val responses = ArrayDeque(
 			listOf(
-				PlatformHttpResponse(202, """{"ok":true,"\u006f\u006b":true,"id":"batch-0"}"""),
+				PlatformHttpResponse(202, """{"ok":true,"ok":true,"id":"b"}"""),
 				PlatformHttpResponse(202, """{"ok":true,"id":true}"""),
-				PlatformHttpResponse(202, """{"ok":true,"id":"batch-2","stored":01}"""),
-				PlatformHttpResponse(202, """{"ok":true,"id":"batch-3",}"""),
-				PlatformHttpResponse(202, """{"ok":true,"id":"batch-4"} trailing"""),
+				PlatformHttpResponse(202, """{"ok":true,"id":"b","stored":01}"""),
+				PlatformHttpResponse(202, """{"ok":true,"id":"b",}"""),
+				PlatformHttpResponse(202, """{"ok":true,"id":"b"} trailing"""),
 			),
 		)
 		val transport = HttpDiagnosticsTransport(
@@ -237,10 +132,8 @@ class DiagnosticsTest {
 			post = { _, _, _ -> responses.removeFirst() },
 		)

-		repeat(5) { index ->
-			val result = transport.sendEvents(
-				TelemetryBatch("batch-$index", listOf(TelemetryEvent("x", 1L))),
-			)
+		repeat(5) {
+			val result = transport.sendBugReport(bugReport())
 			assertIs<DiagnosticsProtocolException>(result.exceptionOrNull())
 		}
 	}
@@ -288,9 +181,7 @@ class DiagnosticsTest {

 	@Test
 	fun noOpTransportReportsUnavailableDelivery() = runTest {
-		val result = NoOpDiagnosticsTransport().sendEvents(
-			TelemetryBatch("batch-1", listOf(TelemetryEvent("x", 1L))),
-		)
+		val result = NoOpDiagnosticsTransport().sendBugReport(bugReport())
 		assertIs<DiagnosticsUnavailableException>(result.exceptionOrNull())
 	}

@@ -313,575 +204,11 @@ class DiagnosticsTest {
 		assertTrue(redacted.contains("[redacted-endpoint]"))
 	}

-	@Test
-	fun breadcrumbBufferKeepsOnlyLatestEntries() {
-		val buffer = BreadcrumbBuffer(capacity = 3)
-		buffer.add("a")
-		buffer.add("b")
-		buffer.add("c")
-		buffer.add("d")
-		assertEquals(listOf("b", "c", "d"), buffer.snapshot().map { it.name })
-	}
-
-	@Test
-	fun telemetryIgnoresEventsWhenDiagnosticsDisabled() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = false)
-		val transport = RecordingDiagnosticsTransport()
-		val breadcrumbs = BreadcrumbBuffer()
-		val recorder = TelemetryRecorder(
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = breadcrumbs,
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 1,
-		)
-		advanceUntilIdle()
-		recorder.record("app_open")
-		advanceUntilIdle()
-		assertEquals(0, transport.events.size)
-		assertEquals(1, breadcrumbs.snapshot().size)
-	}
-
-	@Test
-	fun excludedTelemetryDoesNotStartOrRecordEvents() = runTest {
-		val transport = RecordingDiagnosticsTransport()
-		val breadcrumbs = BreadcrumbBuffer()
-		val recorder = TelemetryRecorder(
-			preferencesRepository = fakePrefs(diagnosticsEnabled = true),
-			transport = transport,
-			breadcrumbs = breadcrumbs,
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 1,
-			included = false,
-		)
-
-		recorder.record("app_open")
-		advanceUntilIdle()
-
-		assertEquals(0, recorder.pendingCount())
-		assertTrue(transport.events.isEmpty())
-		assertTrue(breadcrumbs.snapshot().isEmpty())
-	}
-
-	@Test
-	fun telemetryRetainsColdStartEventsUntilConsentLoads() = runTest {
-		val backing = fakePrefs(diagnosticsEnabled = true)
-		val preferenceGate = CompletableDeferred<Unit>()
-		val delayedPreferences = object : PreferencesRepository by backing {
-			override val preferences = flow {
-				preferenceGate.await()
-				emitAll(backing.preferences)
-			}
-		}
-		val transport = RecordingDiagnosticsTransport()
-		val recorder = TelemetryRecorder(
-			preferencesRepository = delayedPreferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 20,
-		)
-		runCurrent()
-
-		recorder.record("app_open")
-		assertEquals(1, recorder.pendingCount())
-		preferenceGate.complete(Unit)
-		runCurrent()
-		assertTrue(recorder.flush().isSuccess)
-
-		assertEquals(listOf("app_open"), transport.events.single().map { it.name })
-	}
-
-	@Test
-	fun telemetryBuffersAndFlushesWhenEnabled() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val transport = RecordingDiagnosticsTransport()
-		val recorder = TelemetryRecorder(
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 2,
-			maxBufferSize = 10,
-		)
-		advanceUntilIdle()
-		recorder.record("one")
-		recorder.record("two")
-		advanceUntilIdle()
-		assertEquals(1, transport.events.size)
-		assertEquals(listOf("one", "two"), transport.events.single().map { it.name })
-	}
-
-	@Test
-	fun telemetryFlushesSparseEventsAfterTheInterval() = runTest {
-		val transport = RecordingDiagnosticsTransport()
-		val recorder = TelemetryRecorder(
-			preferencesRepository = fakePrefs(diagnosticsEnabled = true),
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 20,
-			flushIntervalMillis = 1_000,
-		)
-		advanceUntilIdle()
-		recorder.record("sparse")
-
-		advanceTimeBy(999)
-		runCurrent()
-		assertTrue(transport.eventBatches.isEmpty())
-		advanceTimeBy(1)
-		runCurrent()
-		assertEquals(listOf("sparse"), transport.events.single().map { it.name })
-	}
-
-	@Test
-	fun telemetryCoalescesAutomaticRetriesWithBackoff() = runTest {
-		val transport = RecordingDiagnosticsTransport().apply {
-			eventsResult = Result.failure(IllegalStateException("offline"))
-		}
-		val recorder = TelemetryRecorder(
-			preferencesRepository = fakePrefs(diagnosticsEnabled = true),
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 1,
-			flushIntervalMillis = 10_000,
-			retryBackoffMillis = 1_000,
-			automaticRetryCount = 1,
-		)
-		advanceUntilIdle()
-		recorder.record("retry")
-		runCurrent()
-		assertEquals(1, transport.eventBatches.size)
-
-		advanceTimeBy(999)
-		runCurrent()
-		assertEquals(1, transport.eventBatches.size)
-		advanceTimeBy(1)
-		runCurrent()
-		assertEquals(2, transport.eventBatches.size)
-		advanceTimeBy(10_000)
-		runCurrent()
-		assertEquals(2, transport.eventBatches.size)
-	}
-
-	@Test
-	fun telemetryFlushesAtMostFiftyEventsPerBatch() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val transport = RecordingDiagnosticsTransport()
-		val recorder = TelemetryRecorder(
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 101,
-			maxBufferSize = 100,
-		)
-		advanceUntilIdle()
-		repeat(75) { recorder.record("event-$it") }
-
-		assertTrue(recorder.flush().isSuccess)
-		assertEquals(listOf(50, 25), transport.eventBatches.map { it.events.size })
-		assertTrue(transport.eventBatches.all { it.events.size <= TelemetryRecorder.MaxEventsPerBatch })
-	}
-
-	@Test
-	fun telemetrySplitsBatchesByEscapedRequestBytes() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val requestBodies = mutableListOf<String>()
-		val transport = HttpDiagnosticsTransport(
-			baseUrl = "https://diag.example",
-			ingestKey = "secret",
-			appVersion = "1.0",
-			platform = "Test",
-			installIdProvider = { "test-install" },
-			post = { _, _, body ->
-				requestBodies += body
-				val id = Regex(""""batchId":"([^"]+)"""").find(body)?.groupValues?.get(1)
-				PlatformHttpResponse(202, """{"ok":true,"id":"$id"}""")
-			},
-		)
-		val recorder = TelemetryRecorder(
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 101,
-			maxBufferSize = 100,
-		)
-		advanceUntilIdle()
-		val properties = LinkedHashMap<String, String>().apply {
-			repeat(MaxDiagnosticProperties) { index ->
-				put("key-$index-${"\u0001".repeat(40)}", "\u0001".repeat(MaxDiagnosticPropertyValueBytes))
-			}
-		}
-		repeat(50) { index ->
-			recorder.record("event-$index-${"\u0001".repeat(64)}", properties)
-		}
-
-		assertTrue(recorder.flush().isSuccess)
-		assertTrue(requestBodies.size > 1)
-		assertTrue(requestBodies.all { it.encodeToByteArray().size <= DiagnosticsJson.MaxRequestBytes })
-		assertEquals(50, requestBodies.sumOf { body -> "\"schemaVersion\"".toRegex().findAll(body).count() })
-	}
-
-	@Test
-	fun telemetrySanitizesNamesAndPropertiesToServerByteLimits() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val transport = RecordingDiagnosticsTransport()
-		val recorder = TelemetryRecorder(
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 100,
-		)
-		advanceUntilIdle()
-		val properties = LinkedHashMap<String, String>().apply {
-			repeat(20) { index -> put("key-$index-${"🙂".repeat(20)}", "🙂".repeat(100)) }
-		}
-
-		recorder.record("🙂".repeat(100), properties)
-		assertTrue(recorder.flush().isSuccess)
-
-		val event = transport.eventBatches.single().events.single()
-		assertTrue(event.name.encodeToByteArray().size <= MaxDiagnosticNameBytes)
-		assertEquals(MaxDiagnosticProperties, event.properties.size)
-		assertTrue(event.properties.keys.all { it.encodeToByteArray().size <= MaxDiagnosticPropertyKeyBytes })
-		assertTrue(event.properties.values.all { it.encodeToByteArray().size <= MaxDiagnosticPropertyValueBytes })
-	}
-
-	@Test
-	fun telemetryKeepsConcurrentRecordsWithoutExceedingItsBuffer() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val transport = RecordingDiagnosticsTransport()
-		val recorder = TelemetryRecorder(
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 101,
-			maxBufferSize = 100,
-		)
-		advanceUntilIdle()
-
-		coroutineScope {
-			repeat(100) { index ->
-				launch(Dispatchers.Default) { recorder.record("event-$index") }
-			}
-		}
-
-		assertEquals(
-			100,
-			recorder.pendingCount() + transport.eventBatches.sumOf { it.events.size },
-		)
-		assertTrue(recorder.flush().isSuccess)
-		assertEquals(100, transport.eventBatches.sumOf { it.events.size })
-	}
-
-	@Test
-	fun telemetryRetryReusesBatchIdAndEvents() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val transport = RecordingDiagnosticsTransport().apply {
-			eventsResult = Result.failure(IllegalStateException("offline"))
-		}
-		val recorder = TelemetryRecorder(
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 10,
-		)
-		advanceUntilIdle()
-		recorder.record("one")
-		recorder.record("two")
-
-		assertTrue(recorder.flush().isFailure)
-		val firstAttempt = transport.eventBatches.single()
-		transport.eventsResult = Result.success(Unit)
-		assertTrue(recorder.flush().isSuccess)
-
-		assertEquals(listOf(firstAttempt, firstAttempt), transport.eventBatches)
-		assertEquals(0, recorder.pendingCount())
-	}
-
-	@Test
-	fun telemetryDoesNotRequeuePermanentlyRejectedPayload() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val transport = RecordingDiagnosticsTransport().apply {
-			eventsResult = Result.failure(DiagnosticsHttpException(400, "/v1/events"))
-		}
-		val recorder = TelemetryRecorder(
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 10,
-		)
-		advanceUntilIdle()
-		recorder.record("invalid")
-
-		assertTrue(recorder.flush().isFailure)
-		assertEquals(0, recorder.pendingCount())
-		transport.eventsResult = Result.success(Unit)
-		assertTrue(recorder.flush().isSuccess)
-		assertEquals(1, transport.eventBatches.size)
-	}
-
-	@Test
-	fun telemetryClearsBufferWhenOptedOut() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val transport = RecordingDiagnosticsTransport()
-		val recorder = TelemetryRecorder(
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-			flushThreshold = 100,
-		)
-		advanceUntilIdle()
-		recorder.record("queued")
-		assertEquals(1, recorder.pendingCount())
-		preferences.setDiagnosticsEnabled(false)
-		advanceUntilIdle()
-		assertEquals(0, recorder.pendingCount())
-	}
-
-	@Test
-	fun crashCodecRoundTrips() {
-		val original = CrashReport(
-			id = "aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa",
-			timestampMillis = 42L,
-			installId = "install",
-			appVersion = "1.0",
-			platform = "Test",
-			exceptionType = "IllegalStateException",
-			exceptionMessage = "boom\nline\\nliteral\u001fseparator",
-			stackTrace = "stack\ntrace\u001erecord",
-			breadcrumbs = listOf(
-				Breadcrumb("open|send", 1L, mapOf("screen:key" to "send,value|next")),
-			),
-			diagnosticsEnabledAtCapture = true,
-		)
-		val decoded = CrashReportCodec.decode(CrashReportCodec.encode(original))
-		assertEquals(original, decoded)
-		assertNull(CrashReportCodec.decode(CrashReportCodec.encode(original.copy(id = "../../escape"))))
-	}
-
-	@Test
-	fun crashCodecMigratesLegacyV1Envelope() {
-		val raw = listOf(
-			"id=bbbbbbbb-bbbb-4bbb-8bbb-bbbbbbbbbbbb",
-			"ts=42",
-			"install=legacy-install",
-			"app=0.9",
-			"platform=Desktop",
-			"type=IllegalStateException",
-			"message=first\\nsecond",
-			"stack=frame one\\nframe two",
-			"diag=1",
-			"schema=1",
-			"crumbs=1|opened|screen:send",
-		).joinToString("\u001f")
-
-		val report = requireNotNull(CrashReportCodec.decode(raw))
-
-		assertEquals("first\nsecond", report.exceptionMessage)
-		assertEquals("frame one\nframe two", report.stackTrace)
-		assertEquals(true, report.diagnosticsEnabledAtCapture)
-		assertEquals(
-			listOf(Breadcrumb("opened", 1, mapOf("screen" to "send"))),
-			report.breadcrumbs,
-		)
-	}
-
-	@Test
-	fun crashReporterPersistsAndFlushesOnlyOptedInCrashes() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val transport = RecordingDiagnosticsTransport()
-		val store = InMemoryPendingCrashStore()
-		val reporter = CrashReporter(
-			store = store,
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			appVersion = "1.0",
-			platform = "Test",
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-		)
-		reporter.startObservingPreferences()
-		advanceUntilIdle()
-
-		val optedIn = reporter.capture(RuntimeException("a"), diagnosticsEnabledOverride = true)
-		reporter.capture(RuntimeException("b"), diagnosticsEnabledOverride = false)
-		assertEquals(1, store.list().size)
-
-		reporter.flushPending()
-		assertEquals(1, transport.crashes.size)
-		assertEquals(optedIn.id, transport.crashes.single().id)
-		assertTrue(store.list().isEmpty())
-	}
-
-	@Test
-	fun crashReporterRetainsCrashWhenDeliveryIsUnavailable() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val store = InMemoryPendingCrashStore()
-		val reporter = CrashReporter(
-			store = store,
-			preferencesRepository = preferences,
-			transport = NoOpDiagnosticsTransport(),
-			breadcrumbs = BreadcrumbBuffer(),
-			appVersion = "1.0",
-			platform = "Test",
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-		)
-		reporter.capture(RuntimeException("boom"), diagnosticsEnabledOverride = true)
-
-		reporter.flushPending()
-		assertEquals(1, store.list().size)
-	}
-
-	@Test
-	fun crashReporterDropsPermanentPayloadFailuresAndStopsAfterTransientFailures() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val permanentTransport = RecordingDiagnosticsTransport().apply {
-			crashResult = Result.failure(DiagnosticsHttpException(400, "/v1/crashes"))
-		}
-		val permanentStore = InMemoryPendingCrashStore()
-		val permanentReporter = CrashReporter(
-			store = permanentStore,
-			preferencesRepository = preferences,
-			transport = permanentTransport,
-			breadcrumbs = BreadcrumbBuffer(),
-			appVersion = "1.0",
-			platform = "Test",
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-		)
-		permanentReporter.capture(RuntimeException("invalid"), diagnosticsEnabledOverride = true)
-		permanentReporter.flushPending()
-		assertTrue(permanentStore.list().isEmpty())
-
-		val transientTransport = RecordingDiagnosticsTransport().apply {
-			crashResult = Result.failure(IllegalStateException("offline"))
-		}
-		val transientStore = InMemoryPendingCrashStore()
-		val transientReporter = CrashReporter(
-			store = transientStore,
-			preferencesRepository = preferences,
-			transport = transientTransport,
-			breadcrumbs = BreadcrumbBuffer(),
-			appVersion = "1.0",
-			platform = "Test",
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-		)
-		repeat(2) {
-			transientReporter.capture(RuntimeException("offline-$it"), diagnosticsEnabledOverride = true)
-		}
-		transientReporter.flushPending()
-		assertEquals(1, transientTransport.crashes.size)
-		assertEquals(2, transientStore.list().size)
-	}
-
-	@Test
-	fun crashReporterResolvesStartupConsentBeforeUploading() = runTest {
-		val transport = RecordingDiagnosticsTransport()
-		val store = InMemoryPendingCrashStore()
-		val reporter = CrashReporter(
-			store = store,
-			preferencesRepository = fakePrefs(diagnosticsEnabled = true),
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			appVersion = "1.0",
-			platform = "Test",
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-		)
-		val startupCrash = reporter.capture(RuntimeException("startup"))
-		assertNull(startupCrash.diagnosticsEnabledAtCapture)
-
-		reporter.flushPending()
-
-		assertEquals(true, transport.crashes.single().diagnosticsEnabledAtCapture)
-		assertEquals("test-install", transport.crashes.single().installId)
-		assertTrue(store.list().isEmpty())
-	}
-
-	@Test
-	fun crashReporterDoesNotRetroactivelyUploadAnOptedOutStartupCrash() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = false)
-		val transport = RecordingDiagnosticsTransport()
-		val store = InMemoryPendingCrashStore()
-		val reporter = CrashReporter(
-			store = store,
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			appVersion = "1.0",
-			platform = "Test",
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-		)
-		reporter.capture(RuntimeException("startup"))
-
-		reporter.flushPending()
-		assertTrue(store.list().isEmpty())
-		preferences.setDiagnosticsEnabled(true)
-		reporter.flushPending()
-
-		assertTrue(transport.crashes.isEmpty())
-		assertTrue(store.list().isEmpty())
-	}
-
-	@Test
-	fun crashReporterStopsAFlushWhenTheUserOptsOut() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = true)
-		val firstSendStarted = CompletableDeferred<Unit>()
-		val releaseFirstSend = CompletableDeferred<Unit>()
-		val sentIds = mutableListOf<String>()
-		val transport = object : DiagnosticsTransport {
-			override suspend fun sendEvents(batch: TelemetryBatch) = Result.success(Unit)
-			override suspend fun sendBugReport(report: BugReport) = Result.success(Unit)
-			override suspend fun sendCrash(report: CrashReport): Result<Unit> {
-				sentIds += report.id
-				if (sentIds.size == 1) {
-					firstSendStarted.complete(Unit)
-					releaseFirstSend.await()
-				}
-				return Result.success(Unit)
-			}
-		}
-		val store = InMemoryPendingCrashStore()
-		val reporter = CrashReporter(
-			store = store,
-			preferencesRepository = preferences,
-			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
-			appVersion = "1.0",
-			platform = "Test",
-			scope = TestScope(UnconfinedTestDispatcher(testScheduler)),
-		)
-		reporter.startObservingPreferences()
-		advanceUntilIdle()
-		repeat(2) {
-			reporter.capture(RuntimeException("crash-$it"), diagnosticsEnabledOverride = true)
-		}
-
-		val flush = launch { reporter.flushPending() }
-		firstSendStarted.await()
-		preferences.setDiagnosticsEnabled(false)
-		runCurrent()
-		releaseFirstSend.complete(Unit)
-		flush.join()
-
-		assertEquals(1, sentIds.size)
-		assertTrue(store.list().isEmpty())
-	}
-
 	@Test
 	fun bugReportRequiresWhatAndExpected() = runTest {
-		val preferences = fakePrefs()
 		val service = BugReportService(
-			preferencesRepository = preferences,
+			preferencesRepository = fakePrefs(),
 			transport = RecordingDiagnosticsTransport(),
-			breadcrumbs = BreadcrumbBuffer(),
 			appVersion = "1.0",
 			platform = "Test",
 			logReader = { "logs" },
@@ -893,8 +220,6 @@ class DiagnosticsTest {
 	@Test
 	fun bugReportConvertsTransportExceptionsToFailure() = runTest {
 		val throwingTransport = object : DiagnosticsTransport {
-			override suspend fun sendEvents(batch: TelemetryBatch) = Result.success(Unit)
-			override suspend fun sendCrash(report: CrashReport) = Result.success(Unit)
 			override suspend fun sendBugReport(report: BugReport): Result<Unit> {
 				throw IllegalStateException("offline")
 			}
@@ -902,7 +227,6 @@ class DiagnosticsTest {
 		val service = BugReportService(
 			preferencesRepository = fakePrefs(),
 			transport = throwingTransport,
-			breadcrumbs = BreadcrumbBuffer(),
 			appVersion = "1.0",
 			platform = "Test",
 		)
@@ -914,13 +238,11 @@ class DiagnosticsTest {
 	}

 	@Test
-	fun bugReportSubmitsWithRedactedLogsRegardlessOfDiagnostics() = runTest {
-		val preferences = fakePrefs(diagnosticsEnabled = false)
+	fun bugReportSubmitsWithRedactedLogs() = runTest {
 		val transport = RecordingDiagnosticsTransport()
 		val service = BugReportService(
-			preferencesRepository = preferences,
+			preferencesRepository = fakePrefs(),
 			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
 			appVersion = "1.0",
 			platform = "Test",
 			logReader = { LogRedactor.redact("ticket=abcdefghijklmnopqrstuvwxyz012345 plain") },
@@ -951,7 +273,6 @@ class DiagnosticsTest {
 		val service = BugReportService(
 			preferencesRepository = fakePrefs(),
 			transport = RecordingDiagnosticsTransport(),
-			breadcrumbs = BreadcrumbBuffer(),
 			appVersion = "1.0",
 			platform = "Test",
 			logReader = { rawLogs },
@@ -969,7 +290,6 @@ class DiagnosticsTest {
 		val service = BugReportService(
 			preferencesRepository = fakePrefs(),
 			transport = RecordingDiagnosticsTransport(),
-			breadcrumbs = BreadcrumbBuffer(),
 			appVersion = "1.0",
 			platform = "Test",
 			logReader = { "🙂".repeat(60_000) },
@@ -981,38 +301,34 @@ class DiagnosticsTest {
 		assertEquals(BugReportService.MaxLogBytes, service.previewLogBytes())
 	}

-	private fun fakePrefs(diagnosticsEnabled: Boolean = false) = FakePreferencesRepository(
+	private fun bugReport(
+		id: String = "b",
+		logs: String = "",
+		includeLogs: Boolean = false,
+	) = BugReport(
+		id = id,
+		timestampMillis = 1L,
+		installId = "i",
+		appVersion = "1.0",
+		platform = "Test",
+		whatHappened = "w",
+		expected = "e",
+		steps = "",
+		contact = "",
+		includeLogs = includeLogs,
+		logs = logs,
+		device = DeviceSnapshot(null, null, "OS", null, null),
+	)
+
+	private fun fakePrefs() = FakePreferencesRepository(
 		AppPreferences(
 			username = "User",
 			receiveFolder = ReceiveFolder(ReceiveFolderKind.FileSystemPath, "/tmp", "tmp"),
 			themeMode = ThemeMode.System,
 			notificationsEnabled = false,
-			diagnosticsEnabled = diagnosticsEnabled,
 			diagnosticsInstallId = "test-install",
 		),
 	)

 	private fun device() = DeviceInfo("Phone", "Pixel", "Android 15", "Wi-Fi", "90%")
 }
-
-private class InMemoryPendingCrashStore : PendingCrashStore {
-	private val items = linkedMapOf<String, CrashReport>()
-	override fun write(report: CrashReport) {
-		items[report.id] = report
-	}
-	override fun list(): List<CrashReport> = items.values.sortedByDescending { it.timestampMillis }
-	override fun delete(id: String) {
-		items.remove(id)
-	}
-	override fun prune(olderThanTimestampMillis: Long, maxCount: Int) {
-		items.values
-			.sortedByDescending { it.timestampMillis }
-			.drop(maxCount)
-			.map(CrashReport::id)
-			.forEach(items::remove)
-		items.values
-			.filter { it.timestampMillis < olderThanTimestampMillis }
-			.map(CrashReport::id)
-			.forEach(items::remove)
-	}
-}
--- a/shared/src/commonTest/kotlin/com/vnidrop/app/feature/ViewModelsTest.kt
+++ b/shared/src/commonTest/kotlin/com/vnidrop/app/feature/ViewModelsTest.kt
@@ -18,7 +18,6 @@ import com.vnidrop.app.core.ShareAccessPolicy
 import com.vnidrop.app.core.Transfer
 import com.vnidrop.app.core.TransferDirection
 import com.vnidrop.app.core.TransferStatus
-import com.vnidrop.app.diagnostics.BreadcrumbBuffer
 import com.vnidrop.app.diagnostics.BugReportService
 import com.vnidrop.app.diagnostics.DiagnosticsTransport
 import com.vnidrop.app.diagnostics.NoOpDiagnosticsTransport
@@ -420,33 +419,6 @@ class ViewModelsTest {
 		assertEquals(NotificationPermission.Unsupported, viewModel.state.value.notificationPermission)
 	}

-	@Test
-	fun settingsTogglesDiagnosticsPreference() = runTest {
-		Dispatchers.setMain(StandardTestDispatcher(testScheduler))
-		val preferences = preferences()
-		val viewModel = settingsViewModel(preferences, diagnosticsIncluded = true)
-		advanceUntilIdle()
-		assertFalse(viewModel.state.value.diagnosticsEnabled)
-		viewModel.setDiagnosticsEnabled(true)
-		advanceUntilIdle()
-		assertTrue(preferences.mutablePreferences.value.diagnosticsEnabled)
-		assertTrue(viewModel.state.value.diagnosticsEnabled)
-	}
-
-	@Test
-	fun settingsIgnoresDiagnosticsOptInWhenExcluded() = runTest {
-		Dispatchers.setMain(StandardTestDispatcher(testScheduler))
-		val preferences = preferences()
-		val viewModel = settingsViewModel(preferences)
-		advanceUntilIdle()
-
-		viewModel.setDiagnosticsEnabled(true)
-		advanceUntilIdle()
-
-		assertFalse(preferences.mutablePreferences.value.diagnosticsEnabled)
-		assertFalse(viewModel.state.value.diagnosticsEnabled)
-	}
-
 	@Test
 	fun settingsSubmitsBugReportAndClearsForm() = runTest {
 		Dispatchers.setMain(StandardTestDispatcher(testScheduler))
@@ -993,7 +965,6 @@ class ViewModelsTest {
 			receiveFolder = folder,
 			themeMode = ThemeMode.System,
 			notificationsEnabled = false,
-			diagnosticsEnabled = false,
 			diagnosticsInstallId = "test-install",
 		),
 	)
@@ -1005,7 +976,6 @@ class ViewModelsTest {
 		notifications: FakeNotificationService = FakeNotificationService(),
 		transport: DiagnosticsTransport = RecordingDiagnosticsTransport(),
 		fileSystem: FakeFileSystemService = FakeFileSystemService(folder),
-		diagnosticsIncluded: Boolean = false,
 		repository: FakeCoreGateway = FakeCoreGateway(),
 	) = SettingsViewModel(
 		environment(),
@@ -1018,12 +988,10 @@ class ViewModelsTest {
 		BugReportService(
 			preferencesRepository = preferences,
 			transport = transport,
-			breadcrumbs = BreadcrumbBuffer(),
 			appVersion = "1.0",
 			platform = "Test",
 			logReader = { "sample log line" },
 		),
-		diagnosticsIncluded = diagnosticsIncluded,
 	)

 	private fun receivedTransfer(id: ULong, status: TransferStatus) = Transfer(
--- a/shared/src/commonTest/kotlin/com/vnidrop/app/support/Fakes.kt
+++ b/shared/src/commonTest/kotlin/com/vnidrop/app/support/Fakes.kt
@@ -210,9 +210,6 @@ class FakePreferencesRepository(
 	override suspend fun resetReceiveFolder() = Unit
 	override suspend fun setThemeMode(mode: ThemeMode) { mutablePreferences.value = mutablePreferences.value.copy(themeMode = mode) }
 	override suspend fun setNotificationsEnabled(enabled: Boolean) { mutablePreferences.value = mutablePreferences.value.copy(notificationsEnabled = enabled) }
-	override suspend fun setDiagnosticsEnabled(enabled: Boolean) {
-		mutablePreferences.value = mutablePreferences.value.copy(diagnosticsEnabled = enabled)
-	}
 	override suspend fun setRelaySettings(settings: RelaySettings) {
 		mutablePreferences.value = mutablePreferences.value.copy(relaySettings = settings)
 	}
--- a/shared/src/jvmMain/kotlin/com/vnidrop/app/diagnostics/PendingCrashStore.jvm.kt
+++ b/shared/src/jvmMain/kotlin/com/vnidrop/app/diagnostics/PendingCrashStore.jvm.kt
@@ -1,78 +0,0 @@
-package com.vnidrop.app.diagnostics
-
-import java.io.File
-import java.nio.charset.StandardCharsets
-
-actual fun createPendingCrashStore(appDataDir: String): PendingCrashStore =
-	JvmPendingCrashStore(appDataDir)
-
-private class JvmPendingCrashStore(
-	appDataDir: String,
-) : PendingCrashStore {
-	private val directory = File(appDataDir, "diagnostics/crashes")
-
-	@Synchronized
-	override fun write(report: CrashReport) {
-		if (!isValidDiagnosticId(report.id)) return
-		directory.mkdirs()
-		val target = File(directory, "${report.id}.crash")
-		val temporary = File(directory, ".${report.id}.tmp")
-		val payload = CrashReportCodec.encode(report)
-		temporary.writeText(payload, StandardCharsets.UTF_8)
-		if (!temporary.renameTo(target)) {
-			target.writeText(payload, StandardCharsets.UTF_8)
-			temporary.delete()
-		}
-	}
-
-	@Synchronized
-	override fun list(): List<CrashReport> {
-		if (!directory.isDirectory) return emptyList()
-		return directory
-			.listFiles { file -> file.isFile && file.name.endsWith(".crash") }
-			.orEmpty()
-			.mapNotNull { file ->
-				runCatching { CrashReportCodec.decode(file.readText(StandardCharsets.UTF_8)) }.getOrNull()
-			}
-			.sortedWith(
-				compareByDescending<CrashReport> { it.timestampMillis }
-					.thenBy { it.id },
-			)
-	}
-
-	@Synchronized
-	override fun delete(id: String) {
-		if (!isValidDiagnosticId(id)) return
-		File(directory, "$id.crash").delete()
-	}
-
-	@Synchronized
-	override fun prune(olderThanTimestampMillis: Long, maxCount: Int) {
-		require(maxCount > 0) { "maxCount must be positive" }
-		if (!directory.isDirectory) return
-		directory.listFiles { file -> file.isFile && file.name.endsWith(".tmp") }
-			.orEmpty()
-			.forEach(File::delete)
-		val reports = directory
-			.listFiles { file -> file.isFile && file.name.endsWith(".crash") }
-			.orEmpty()
-			.mapNotNull { file ->
-				val report = runCatching {
-					CrashReportCodec.decode(file.readText(StandardCharsets.UTF_8))
-				}.getOrNull()
-				if (report == null) {
-					file.delete()
-					null
-				} else {
-					file to report
-				}
-			}
-			.sortedWith(
-				compareByDescending<Pair<File, CrashReport>> { (_, report) -> report.timestampMillis }
-					.thenBy { (_, report) -> report.id },
-			)
-		reports.forEachIndexed { index, (file, report) ->
-			if (index >= maxCount || report.timestampMillis < olderThanTimestampMillis) file.delete()
-		}
-	}
-}
--- a/shared/src/jvmMain/kotlin/com/vnidrop/app/diagnostics/PlatformCrashHook.jvm.kt
+++ b/shared/src/jvmMain/kotlin/com/vnidrop/app/diagnostics/PlatformCrashHook.jvm.kt
@@ -1,9 +0,0 @@
-package com.vnidrop.app.diagnostics
-
-actual fun installPlatformCrashHook(onCrash: (Throwable) -> Unit) {
-	val previous = Thread.getDefaultUncaughtExceptionHandler()
-	Thread.setDefaultUncaughtExceptionHandler { thread, throwable ->
-		runCatching { onCrash(throwable) }
-		previous?.uncaughtException(thread, throwable)
-	}
-}
--- a/shared/src/jvmTest/kotlin/com/vnidrop/app/AppConfigTest.kt
+++ b/shared/src/jvmTest/kotlin/com/vnidrop/app/AppConfigTest.kt
@@ -0,0 +1,40 @@
+package com.vnidrop.app
+
+import java.io.File
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+
+/**
+ * Verifies the build-time [AppConfig] (generated from the shared `app.properties`)
+ * exposes the expected, well-formed values to the shared UI.
+ */
+class AppConfigTest {
+	@Test
+	fun privacyPolicyUrlIsTheExpectedHttpsEndpoint() {
+		assertTrue(AppConfig.PRIVACY_POLICY_URL.startsWith("https://"), "must be https")
+		assertEquals("https://vnidrop.sudosy.fr/privacy/", AppConfig.PRIVACY_POLICY_URL)
+	}
+
+	@Test
+	fun privacyPolicyUrlMatchesTheSharedConfigFile() {
+		// Cross-check the generated constant against the single source of truth so a
+		// broken codegen (or drift) is caught, not just a hardcoded copy.
+		assertEquals(privacyUrlFromAppProperties(), AppConfig.PRIVACY_POLICY_URL)
+	}
+
+	private fun privacyUrlFromAppProperties(): String {
+		var dir: File? = File(System.getProperty("user.dir")).absoluteFile
+		repeat(8) {
+			val candidate = File(dir, "app.properties")
+			if (candidate.isFile) {
+				return candidate.readLines()
+					.firstOrNull { it.startsWith("PRIVACY_POLICY_URL=") }
+					?.substringAfter("PRIVACY_POLICY_URL=")
+					?: error("PRIVACY_POLICY_URL missing in ${candidate.path}")
+			}
+			dir = dir?.parentFile
+		}
+		error("app.properties not found from ${System.getProperty("user.dir")}")
+	}
+}
--- a/shared/src/jvmTest/kotlin/com/vnidrop/app/diagnostics/PendingCrashStoreJvmTest.kt
+++ b/shared/src/jvmTest/kotlin/com/vnidrop/app/diagnostics/PendingCrashStoreJvmTest.kt
@@ -1,59 +0,0 @@
-package com.vnidrop.app.diagnostics
-
-import java.io.File
-import java.nio.file.Files
-import java.nio.file.attribute.FileTime
-import kotlin.test.Test
-import kotlin.test.assertEquals
-import kotlin.test.assertFalse
-import kotlin.test.assertTrue
-
-class PendingCrashStoreJvmTest {
-	@Test
-	fun replacesReportsAndPrunesOldCorruptAndTemporaryFiles() {
-		val root = Files.createTempDirectory("vnidrop-crash-store").toFile()
-		try {
-			val store = createPendingCrashStore(root.absolutePath)
-			val older = report("10000000-0000-4000-8000-000000000001", 1, "older")
-			val current = report("10000000-0000-4000-8000-000000000002", 2, "current")
-			store.write(older)
-			store.write(current)
-			store.write(current.copy(exceptionMessage = "replaced"))
-
-			val directory = File(root, "diagnostics/crashes")
-			File(directory, "corrupt.crash").writeText("not a crash envelope")
-			File(directory, ".orphan.tmp").writeText("partial")
-			store.write(current.copy(id = "../../escape"))
-			val escapedPath = File(directory, "../../escape.crash").canonicalFile
-			Files.setLastModifiedTime(File(directory, "${older.id}.crash").toPath(), FileTime.fromMillis(2_000))
-			Files.setLastModifiedTime(File(directory, "${current.id}.crash").toPath(), FileTime.fromMillis(1_000))
-
-			assertEquals(
-				listOf("replaced", "older"),
-				store.list().map(CrashReport::exceptionMessage),
-			)
-			store.prune(olderThanTimestampMillis = 0, maxCount = 1)
-
-			assertEquals(listOf("replaced"), store.list().map(CrashReport::exceptionMessage))
-			assertFalse(File(directory, "corrupt.crash").exists())
-			assertFalse(File(directory, ".orphan.tmp").exists())
-			assertFalse(escapedPath.exists())
-			assertTrue(directory.listFiles().orEmpty().all { it.parentFile == directory })
-		} finally {
-			root.deleteRecursively()
-		}
-	}
-
-	private fun report(id: String, timestampMillis: Long, message: String) = CrashReport(
-		id = id,
-		timestampMillis = timestampMillis,
-		installId = "install",
-		appVersion = "1.0",
-		platform = "Desktop",
-		exceptionType = "TestError",
-		exceptionMessage = message,
-		stackTrace = "stack",
-		breadcrumbs = emptyList(),
-		diagnosticsEnabledAtCapture = true,
-	)
-}
--- a/shared/src/jvmTest/kotlin/com/vnidrop/app/ui/FoundationComposeTest.kt
+++ b/shared/src/jvmTest/kotlin/com/vnidrop/app/ui/FoundationComposeTest.kt
@@ -152,7 +152,6 @@ class FoundationComposeTest {
 					onResetFolder = {},
 					onNotificationsChanged = {},
 					onOpenNotificationSettings = {},
-					onDiagnosticsChanged = {},
 					onBugWhatChanged = {},
 					onBugExpectedChanged = {},
 					onBugStepsChanged = {},
@@ -182,7 +181,6 @@ class FoundationComposeTest {
 					onResetFolder = {},
 					onNotificationsChanged = {},
 					onOpenNotificationSettings = {},
-					onDiagnosticsChanged = {},
 					onBugWhatChanged = {},
 					onBugExpectedChanged = {},
 					onBugStepsChanged = {},
@@ -238,7 +236,6 @@ class FoundationComposeTest {
 					onResetFolder = {},
 					onNotificationsChanged = {},
 					onOpenNotificationSettings = {},
-					onDiagnosticsChanged = {},
 					onBugWhatChanged = {},
 					onBugExpectedChanged = {},
 					onBugStepsChanged = {},
@@ -291,7 +288,6 @@ class FoundationComposeTest {
 					onResetFolder = {},
 					onNotificationsChanged = {},
 					onOpenNotificationSettings = {},
-					onDiagnosticsChanged = {},
 					onBugWhatChanged = {},
 					onBugExpectedChanged = {},
 					onBugStepsChanged = {},
@@ -322,7 +318,6 @@ class FoundationComposeTest {
 						onResetFolder = {},
 						onNotificationsChanged = {},
 						onOpenNotificationSettings = {},
-						onDiagnosticsChanged = {},
 						onBugWhatChanged = {},
 						onBugExpectedChanged = {},
 						onBugStepsChanged = {},
@@ -358,7 +353,6 @@ class FoundationComposeTest {
 					onResetFolder = {},
 					onNotificationsChanged = { enabled = it },
 					onOpenNotificationSettings = {},
-					onDiagnosticsChanged = {},
 					onBugWhatChanged = {},
 					onBugExpectedChanged = {},
 					onBugStepsChanged = {},
@@ -390,7 +384,6 @@ class FoundationComposeTest {
 					onResetFolder = {},
 					onNotificationsChanged = {},
 					onOpenNotificationSettings = { opened = true },
-					onDiagnosticsChanged = {},
 					onBugWhatChanged = {},
 					onBugExpectedChanged = {},
 					onBugStepsChanged = {},
Author	SHA1	Message	Date
Hammed Abass	877083a3ed	refactor(diagnostics): remove bug report breadcrumbs	2026-08-02 19:18:18 +02:00
cdricms	7cb2270d56	ci(apple): add Xcode Cloud post-clone script Xcode Cloud only checks out the repo, so ci_post_clone.sh installs swiftlint, xcodegen and bun, downloads the prebuilt core (vnidrop.xcframework + Vnidrop.swift) from the matching GitHub Release asset, and generates the project via localization, version/app config codegen and xcodegen. Rust is never built on Xcode Cloud.	2026-08-02 10:29:46 +02:00
cdricms	eb8498168d	fix(shared): avoid java accessor shadowing when reading app.properties In a Gradle Kotlin DSL script `java` resolves to the Java plugin extension accessor, so `java.util.Properties` failed script compilation with "Unresolved reference 'util'", breaking the shared/Linux/Windows KMP jobs. Import java.util.Properties and use it unqualified, matching the root build.	2026-08-02 10:29:45 +02:00
cdricms	ac6e837560	docs: describe bug reports instead of telemetry Update the site privacy policy (no telemetry/analytics, bug-report only, v1.2) and the README/apple README to reflect that only user-submitted bug reports remain.	2026-08-02 10:03:29 +02:00
cdricms	3e18378610	refactor(diagnostics-api): drop telemetry and crash ingestion, keep bug reports Remove the /v1/events and /v1/crashes routes, their normalizers and storage paths, and simplify retention to the bugs table. Add a migration dropping the now-unused event_batches and crashes tables, and regenerate worker types.	2026-08-02 10:03:12 +02:00
cdricms	b68d338097	refactor(apple): remove diagnostics opt-in toggle, keep bug reports Drop the Share-diagnostics preference, its Settings toggle and the DiagnosticsBuildConfig stub. Bug reporting (NoopBugReportService) and the diagnostics install id used for bug-report correlation are retained.	2026-08-02 10:02:49 +02:00
cdricms	b8a002a2ad	refactor(shared): remove telemetry and crash reporting, keep bug reports Delete the TelemetryRecorder, CrashReporter, PendingCrashStore and platform crash hooks along with their models, JSON encoders and the diagnostics opt-in preference. The DiagnosticsTransport interface is narrowed to sendBugReport, and DiagnosticsCoordinator now only wires the bug-report service and install id. Bug reporting, the breadcrumb buffer, log redaction and the diagnostics endpoint config are kept. Regenerate localization after dropping the diagnostics_* keys.	2026-08-02 10:02:28 +02:00
cdricms	232fb125d3	feat(config): shared app.properties for app-wide constants Add a single source of truth (root app.properties) for public app-wide constants, injected at build time on both platforms instead of hardcoding. - Apple: generate-appconfig.sh -> Generated/AppConfig.swift (wired into `make apple-app-config`), consumed as AppConfig.privacyPolicyURL. - KMP: generateAppConfig task -> AppConfig.kt (mirrors DiagnosticsBuildConfig), consumed as AppConfig.PRIVACY_POLICY_URL. Replaces the stale hardcoded privacy-policy URL on both sides with https://vnidrop.sudosy.fr/privacy/. Also fix the Apple release core build: disable release LTO in build-core.sh (Cargo forbids lto in a build-override) to avoid the proc-macro "mis-aligned LINKEDIT string pool" corruption, so release archives are compact instead of shipping the debug core. Update the app icon. Tests: shell test for the generator (escaping, missing/duplicate key), plus XCTest and jvmTest asserting the generated value matches app.properties.	2026-08-01 19:56:07 +02:00