fix: Address Codex review on auto-monitor-mode

- Seed connectedDevices flow with onStart so ALWAYS autolaunch fires before HEADSET profile binds

- Gate UnavailableMissingPermission classification on Android 12+ (BLUETOOTH_CONNECT only exists from API 31)

- Treat blank/empty profile.address as unpaired (matches AutoConnect)

- Subscribe DeviceSettingsViewModel to nudgeCapabilityStore.availability so UI updates immediately on verdict change

- Seed availability StateFlow with the persisted value via valueBlocking to close the cold-start race

app/src/test/java/eu/darken/capod/monitor/core/MonitorModeResolverTest.kt

@@ -85,6 +85,20 @@ class MonitorModeResolverTest : BaseTest() {
         resolver.effectiveMode.first() shouldBe MonitorMode.MANUAL
     }
 
+    @Test
+    fun `case 4 variant - profile with blank address is treated as unpaired`() = runTest {
+        profilesFlow.value = listOf(profile(address = "", autoConnect = true))
+
+        resolver.effectiveMode.first() shouldBe MonitorMode.MANUAL
+    }
+
+    @Test
+    fun `case 4 variant - profile with whitespace address is treated as unpaired`() = runTest {
+        profilesFlow.value = listOf(profile(address = "   ", autoConnect = true))
+
+        resolver.effectiveMode.first() shouldBe MonitorMode.MANUAL
+    }
+
     @Test
     fun `multi-profile primary-only - primary case 2 + secondary case 3 - AUTOMATIC`() = runTest {
         profilesFlow.value = listOf(