feat(release): unify cross-platform versioning

shared/build.gradle.kts

@@ -37,7 +37,7 @@ plugins {
 	alias(libs.plugins.kotlinAtomicfu)
 }
 
-val appVersion = providers.gradleProperty("vnidrop.version").get()
+val appVersion = rootProject.extra["vnidrop.productVersion"] as String
 val desktopRustVariant = providers.gradleProperty("vnidrop.desktop.rustVariant")
 	.map { value ->
 		when (value.trim().lowercase()) {

shared/src/androidMain/kotlin/com/vnidrop/app/Platform.android.kt

@@ -52,7 +52,7 @@ private class AndroidDeviceInfoProvider(
 
 private fun Context.appVersion(): String = runCatching {
 	packageManager.getPackageInfo(packageName, 0).versionName
-}.getOrNull()?.takeIf(String::isNotBlank) ?: "0.1.0"
+}.getOrNull()?.takeIf(String::isNotBlank) ?: "unknown"
 
 private fun Context.activeNetworkSummary(): String? = runCatching {
 	val manager = getSystemService(Context.CONNECTIVITY_SERVICE) as? ConnectivityManager

shared/src/jvmMain/kotlin/com/vnidrop/app/Platform.jvm.kt

@@ -14,7 +14,7 @@ fun rememberJvmAppDependencies(externalInvitations: ExternalInvitationController
 		AppDependencies(
 			environment = PlatformEnvironment(
 				name = "Java ${System.getProperty("java.version")}",
-				appVersion = AppDependencies::class.java.`package`.implementationVersion ?: "0.1.0",
+				appVersion = AppDependencies::class.java.`package`.implementationVersion ?: "unknown",
 				defaultCoreDataDir = System.getProperty("user.home") + "/.vnidrop",
 				defaultUsername = System.getenv("COMPUTERNAME") ?: System.getenv("HOSTNAME") ?: System.getProperty("user.name") ?: "Receiver",
 				uiPlatform = uiPlatformForJvm(System.getProperty("os.name")),