fix(test): isolate androidApp unit tests from the production Application (#6644)

Co-authored-by: Claude Opus 5 <noreply@anthropic.com>

androidApp/src/main/kotlin/org/meshtastic/app/MeshUtilApplication.kt

@@ -144,9 +144,8 @@ open class MeshUtilApplication :
     }
 
     override fun onTerminate() {
-        // Shutdown managers (useful for Robolectric tests).
-        // Non-blocking: cancelAndJoin inside runBlocking on the main thread can deadlock
-        // if any active coroutine is dispatching to Dispatchers.Main.
+        // Robolectric never calls this, so unit tests booting this Application cannot rely on it.
+        // cancel() not cancelAndJoin(): joining under runBlocking on the main thread can deadlock.
         applicationScope.cancel()
         try {
             runBlocking { get<DatabaseManager>().close() }

androidApp/src/test/kotlin/org/meshtastic/app/ui/NavigationAssemblyTest.kt

@@ -36,9 +36,11 @@ import org.meshtastic.feature.settings.radio.channel.channelsGraph
 import org.robolectric.RobolectricTestRunner
 import org.robolectric.annotation.Config
 
+// Graph assembly only builds entry providers, so a bare Application is enough. Booting
+// MeshUtilApplication here leaks its applicationScope launches into the rest of the fork.
 @OptIn(ExperimentalTestApi::class)
 @RunWith(RobolectricTestRunner::class)
-@Config(sdk = [34])
+@Config(sdk = [34], application = android.app.Application::class)
 class NavigationAssemblyTest {
 
     @Test

androidApp/src/test/resources/robolectric.properties

@@ -1 +1,6 @@
+# Legacy SQLite keeps Robolectric's native SQLite off androidApp's unit-test path. The native
+# implementation segfaults the whole test fork if its nativeruntime temp dir is torn down while a
+# background database open is still in flight, which fails the task outright (retry cannot help).
+# No androidApp unit test asserts database behaviour -- :core:database owns that and stays native.
 sdk=34
+sqliteMode=LEGACY

androidApp/src/testGoogle/kotlin/org/meshtastic/app/map/MapNodeClusterItemsTest.kt

@@ -44,9 +44,11 @@ import kotlin.test.assertEquals
 import kotlin.test.assertNotSame
 import kotlin.test.assertTrue
 
+// A bare Application keeps MeshUtilApplication.onCreate out of this test: its fire-and-forget
+// applicationScope launches outlive the class and surface here as UncaughtExceptionsBeforeTest.
 @OptIn(ExperimentalTestApi::class, ExperimentalCoroutinesApi::class)
 @RunWith(RobolectricTestRunner::class)
-@Config(sdk = [34])
+@Config(sdk = [34], application = android.app.Application::class)
 class MapNodeClusterItemsTest {
 
     @Test