重构会议助手，使用服务端转写，添加文件大小

lib/modules/meeting/controllers/meeting_home_controller.dart

@@ -277,6 +277,7 @@ class MeetingHomeController extends GetxController {
           // 插入数据库
           final response = await Api.addRecordEchomeet({
             'rtype': 'LOCAL',
+            'size': fileStat.size,
             ...data,
           });
           final meetingId = response['record']['id'];
@@ -408,6 +409,7 @@ class MeetingHomeController extends GetxController {
 
         final response = await Api.addRecordEchomeet({
           'rtype': recordType,
+          'size': fileStat.size,
           ...data,
         });
         final meetingId = response['record']['id'];
@@ -521,6 +523,7 @@ class MeetingHomeController extends GetxController {
     await _audioPlayer.setAudioSource(AudioSource.file(filePath));
     int seconds = _audioPlayer.duration?.inSeconds ?? 0;
     int creationTime = DateTime.now().millisecondsSinceEpoch;
+    final fileStat = await File(filePath).stat();
     Map<String, Object?> data = {
       'title': fileName,
       'type': type, // 使用传入的type参数
@@ -530,7 +533,11 @@ class MeetingHomeController extends GetxController {
       'tasktype': 0,
       'creationtime': creationTime,
     };
-    final response = await Api.addRecordEchomeet({'rtype': type, ...data});
+    final response = await Api.addRecordEchomeet({
+      'rtype': type,
+      'size': fileStat.size,
+      ...data,
+    });
     final meetingId = response['record']['id'];
     final meetingResult = await SqfliteApi.insertMeeting({
       'id': meetingId,