Add a native SwiftUI VniDrop app (Send/Receive/Settings) talking to the
Rust core via generated UniFFI Swift bindings, plus the uniffi-bindgen
helper crate. iOS uses a TabView, macOS a NavigationSplitView sidebar.
Tighten approve-endpoint to active shares with TTL sessions, reject non-file
FDs, lower default ticket/approval/size caps, show endpoint IDs and Public-mode
warnings, harden Android receive path checks, and run cargo-audit in CI.
Close high-severity findings from the security review: default-deny blob
gets for unmapped hashes, map collection members for ACL, fail closed on
unknown access modes, require vnd1 tickets only, redact tickets from events,
exclude Android app-data backups, and tighten secret-file creation.
Make agent instructions imperative and command-first, add nested
crates/vnidrop and shared guides, and keep compose-skill as the UI
source of truth with VniDrop-specific overrides.
Break the ~1.7k-line runtime orchestration unit into facade, share,
receive, lifecycle, and provider modules so future send/receive work
stays reviewable. Behavior and UniFFI surface are unchanged.
Signal transfer cancel synchronously before any runtime await, drive
API calls via Handle::block_on so concurrent cancel cannot deadlock a
receive, and rewrite the gated output-sink cancel test to avoid the
slow multi-megabyte write loop that starved CI.
Attribute provider transfer progress to each remote endpoint so the
receivers panel and catalog can show per-peer send bars for multi-file
collections while a share is active.
Make the transfer loop feel live: parse real core progress payloads, show
progress on send/receive surfaces, allow cancel/stop, retry failed receives,
and fix delivery-phase events so receiver completion updates the UI.
Default Android receive destination is now the shared system Downloads
collection (like desktop), using MediaStore on API 29+ instead of
app-private storage. Legacy app-private defaults are promoted back to
public Downloads so existing installs pick up the fix.
Android emulated storage rejects hard-link commit even when canWrite()
reports success. Fall back to exclusive rename for publish, probe real
writes during folder validation, and label the default app downloads dir
clearly so it is not confused with shared system Downloads.
