refactor(permissions): Remove unnecessary full-screen intent permission for outgoing calls

android/app/src/main/AndroidManifest.xml

@@ -1,6 +1,12 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
     
     <uses-permission android:name="android.permission.INTERNET"/>
+    
+    <!-- Remove USE_FULL_SCREEN_INTENT added by flutter_callkit_incoming/flutter_local_notifications.
+         Not needed: app only has outgoing calls (no incoming call UI on lock screen). -->
+    <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT" tools:node="remove"/>
+    
     <uses-permission android:name="android.permission.RECORD_AUDIO"/>
     <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
     <uses-permission android:name="android.permission.CAMERA"/>

ios/Podfile.lock

@@ -225,6 +225,6 @@ SPEC CHECKSUMS:
   wakelock_plus: e29112ab3ef0b318e58cfa5c32326458be66b556
   webview_flutter_wkwebview: 8ebf4fded22593026f7dbff1fbff31ea98573c8d
 
-PODFILE CHECKSUM: 32adf4606dae7e9ca2351c13b9e3ce1df6ad7ebf
+PODFILE CHECKSUM: 1f8874f58051a502e2f506dc2d4737781aa1edde
 
 COCOAPODS: 1.16.2

lib/core/services/callkit_service.dart

@@ -27,8 +27,7 @@ class CallKitService {
         },
       ),
     );
-
-    await _safe(() => FlutterCallkitIncoming.requestFullIntentPermission());
+    // Full-screen intent permission not needed for outgoing-only calls.
   }
 
   /// Starts an outgoing call with the native UI and returns the call id.