Initial project import and stabilization baseline

lib/data/services/sound_service.dart

@@ -0,0 +1,46 @@
+import 'package:audioplayers/audioplayers.dart';
+import 'package:flutter/foundation.dart';
+
+class SoundService {
+  SoundService._();
+  static final instance = SoundService._();
+
+  late AudioPlayer _player;
+  bool _initialized = false;
+
+  void init() {
+    if (_initialized) return;
+    _player = AudioPlayer();
+    // Pre-cache sounds by setting sources but not playing immediately if desired,
+    // though AudioCache is handled implicitly in newer audioplayers.
+    _player.setReleaseMode(ReleaseMode.stop);
+    _initialized = true;
+  }
+
+  Future<void> playAdzanBeep() async {
+    try {
+      if (!_initialized) init();
+      // Plays a single beep exactly when Adzan time hits
+      await _player.play(AssetSource('sounds/beep.mp3'));
+    } catch (e) {
+      debugPrint('[SoundService] Error playing adzan beep: $e');
+    }
+  }
+
+  Future<void> playIqomahCountdown() async {
+    try {
+      if (!_initialized) init();
+      // Plays the 3-beep countdown for the last 3 seconds of Iqamah
+      await _player.play(AssetSource('sounds/3-detik-countdown.mp3'));
+    } catch (e) {
+      debugPrint('[SoundService] Error playing iqomah countdown: $e');
+    }
+  }
+
+  void dispose() {
+    if (_initialized) {
+      _player.dispose();
+      _initialized = false;
+    }
+  }
+}