perf: short-circuit granted mic permission checks

apps/chanora_flutter/test/services/android_permissions_service_test.dart

@@ -371,8 +371,8 @@ void main() {
   });
 
   test(
-    'SWE4-UV-041 / SDD-106 §1: ensureRecordAudio() resolves from the '
-    'platform return value even when the resolved state is unchanged',
+    'SWE4-UV-041 / SDD-106 §1: ensureRecordAudio() short-circuits when '
+    'the cached state is already granted',
     () async {
       final svc = AndroidPermissionsService(channel: channel)..start();
 
@@ -392,7 +392,7 @@ void main() {
       expect(result, AndroidRecordAudioPermissionState.granted);
       expect(
         outgoingCalls.where((c) => c.method == methodRequestRecordAudio),
-        hasLength(1),
+        isEmpty,
       );
       svc.dispose();
     },
@@ -411,6 +411,46 @@ void main() {
     svc.dispose();
   });
 
+  test('startup permissions request emits outbound method and records '
+      'multiple returned states', () async {
+    final svc = AndroidPermissionsService(channel: channel)..start();
+
+    outgoingResponder = (call) async {
+      if (call.method == methodRequestStartupPermissions) {
+        return {
+          'android.permission.RECORD_AUDIO': 'Granted',
+          'android.permission.BLUETOOTH_CONNECT': 'Denied',
+          'android.permission.POST_NOTIFICATIONS': 'PermanentlyDenied',
+        };
+      }
+      return null;
+    };
+
+    final result = await svc.ensureStartupPermissions();
+
+    expect(
+      outgoingCalls.where((c) => c.method == methodRequestStartupPermissions),
+      hasLength(1),
+    );
+    expect(
+      result[AndroidPermissionKind.recordAudio],
+      AndroidRecordAudioPermissionState.granted,
+    );
+    expect(
+      result[AndroidPermissionKind.bluetoothConnect],
+      AndroidRecordAudioPermissionState.denied,
+    );
+    expect(
+      result[AndroidPermissionKind.postNotifications],
+      AndroidRecordAudioPermissionState.permanentlyDenied,
+    );
+    expect(
+      svc.permissionState(AndroidPermissionKind.bluetoothConnect).value,
+      AndroidRecordAudioPermissionState.denied,
+    );
+    svc.dispose();
+  });
+
   test('SWE4-UV-041 / SDD-106: non-Android short-circuit — when channel '
       'is null, recordAudioState seeds to granted and ensureRecordAudio '
       'resolves synchronously without touching any channel', () async {