feat: Enhance TTS player functionality and UI

- Added resume functionality to TTS player when paused.
- Display voice name or language in TTS player UI.
- Improved error handling in reader provider with debug messages.
- Updated TTS service to configure Vietnamese voice and handle platform-specific audio settings.
- Removed wakelock dependency and related code.
- Fixed search screen error handling.
- Updated settings screen to navigate to home after sign out.
- Improved splash screen with timer management.
- Enhanced main app error handling with logging.
- Removed unused package_info_plus and wakelock_plus dependencies.
- Added environment variable support for mobile runtime.
- Integrated Google Sign-In configuration for Android.
- Created logging observer for Riverpod providers.
- Added scripts for environment setup and Google Sign-In validation.

lib/features/reader/presentation/tts_player_widget.dart

@@ -29,10 +29,16 @@ class TtsPlayerWidget extends ConsumerWidget {
           if (!tts.isPlaying)
             IconButton.filled(
               icon: const Icon(Icons.play_arrow),
-              onPressed: () => notifier.startReading(
-                content,
-                paragraphIndex: tts.paragraphIndex,
-              ),
+              onPressed: () {
+                if (tts.status == TtsStatus.paused) {
+                  notifier.resume();
+                  return;
+                }
+                notifier.startReading(
+                  content,
+                  paragraphIndex: tts.paragraphIndex,
+                );
+              },
             )
           else
             IconButton.filled(
@@ -68,6 +74,23 @@ class TtsPlayerWidget extends ConsumerWidget {
                 style: Theme.of(context).textTheme.labelSmall,
               ),
             ),
+          if (tts.voiceName != null)
+            Padding(
+              padding: const EdgeInsets.only(right: 8),
+              child: Text(
+                tts.voiceName!,
+                overflow: TextOverflow.ellipsis,
+                style: Theme.of(context).textTheme.labelSmall,
+              ),
+            )
+          else
+            Padding(
+              padding: const EdgeInsets.only(right: 8),
+              child: Text(
+                tts.language,
+                style: Theme.of(context).textTheme.labelSmall,
+              ),
+            ),
         ],
       ),
     );