feat: Implement audio recording and transcription for rapid order creation across platforms.

apps/mobile/packages/core/lib/core.dart

@@ -31,3 +31,4 @@ export 'src/services/device/camera/camera_service.dart';
 export 'src/services/device/gallery/gallery_service.dart';
 export 'src/services/device/file/file_picker_service.dart';
 export 'src/services/device/file_upload/device_file_upload_service.dart';
+export 'src/services/device/audio/audio_recorder_service.dart';

apps/mobile/packages/core/lib/src/core_module.dart

@@ -40,6 +40,7 @@ class CoreModule extends Module {
     i.addSingleton<CameraService>(() => CameraService(i.get<ImagePicker>()));
     i.addSingleton<GalleryService>(() => GalleryService(i.get<ImagePicker>()));
     i.addSingleton<FilePickerService>(FilePickerService.new);
+    i.addSingleton<AudioRecorderService>(AudioRecorderService.new);
     i.addSingleton<DeviceFileUploadService>(
       () => DeviceFileUploadService(
         cameraService: i.get<CameraService>(),

apps/mobile/packages/core/lib/src/services/device/audio/audio_recorder_service.dart

@@ -0,0 +1,55 @@
+import 'dart:io';
+import 'package:path_provider/path_provider.dart';
+import 'package:record/record.dart';
+import 'package:krow_domain/krow_domain.dart';
+
+/// Service for recording audio using the device microphone.
+class AudioRecorderService extends BaseDeviceService {
+  /// Creates an [AudioRecorderService].
+  AudioRecorderService() : _recorder = AudioRecorder();
+
+  final AudioRecorder _recorder;
+
+  /// Starts recording audio to a temporary file.
+  ///
+  /// Returns the path where the audio is being recorded.
+  Future<void> startRecording() async {
+    return action(() async {
+      if (await _recorder.hasPermission()) {
+        final Directory tempDir = await getTemporaryDirectory();
+        final String path =
+            '${tempDir.path}/rapid_order_audio_${DateTime.now().millisecondsSinceEpoch}.m4a';
+
+        // Configure the recording
+        const RecordConfig config = RecordConfig(
+          encoder: AudioEncoder.aacLc, // Good balance of quality and size
+          bitRate: 128000,
+          sampleRate: 44100,
+        );
+
+        await _recorder.start(config, path: path);
+      } else {
+        throw Exception('Microphone permission not granted');
+      }
+    });
+  }
+
+  /// Stops the current recording.
+  ///
+  /// Returns the path to the recorded audio file, or null if no recording was active.
+  Future<String?> stopRecording() async {
+    return action(() async {
+      return await _recorder.stop();
+    });
+  }
+
+  /// Checks if the recorder is currently recording.
+  Future<bool> isRecording() async {
+    return await _recorder.isRecording();
+  }
+
+  /// Disposes the recorder resources.
+  void dispose() {
+    _recorder.dispose();
+  }
+}

apps/mobile/packages/core/pubspec.yaml

@@ -25,4 +25,6 @@ dependencies:
   image_picker: ^1.1.2
   path_provider: ^2.1.3
   file_picker: ^8.1.7
+  record: ^5.2.0
   firebase_auth: ^6.1.4
+