chore: 更新Docker配置，优化路由

- 更新docker-compose.yml
- 优化conversations.py、plans.py、quota.py、user.py、websocket.py

Co-authored-by: Cursor <cursoragent@cursor.com>

api/routers/websocket.py

@@ -170,6 +170,18 @@ async def websocket_endpoint(
                         text_message = message.get("data", {}).get("text", "")
                         
                         if text_message:
+                            # 校验对话轮数配额
+                            from routers.quota import get_segment_count, check_can_send_message
+                            seg_count = await get_segment_count(user_id, db)
+                            can_send, quota_msg = check_can_send_message(user.subscription_type, seg_count)
+                            if not can_send:
+                                await manager.send_message(conversation_id, {
+                                    "type": MessageType.ERROR,
+                                    "data": {"message": quota_msg, "code": "QUOTA_EXCEEDED"},
+                                    "timestamp": datetime.now(timezone.utc).isoformat()
+                                })
+                                continue
+
                             # 保存段落到数据库
                             segment = Segment(
                                 id=str(uuid.uuid4()),
@@ -199,6 +211,18 @@ async def websocket_endpoint(
                         audio_duration = data.get("duration", 0)
                         
                         if audio_base64:
+                            # 校验对话轮数配额
+                            from routers.quota import get_segment_count, check_can_send_message
+                            seg_count = await get_segment_count(user_id, db)
+                            can_send, quota_msg = check_can_send_message(user.subscription_type, seg_count)
+                            if not can_send:
+                                await manager.send_message(conversation_id, {
+                                    "type": MessageType.ERROR,
+                                    "data": {"message": quota_msg, "code": "QUOTA_EXCEEDED"},
+                                    "timestamp": datetime.now(timezone.utc).isoformat()
+                                })
+                                continue
+
                             logger.info(f"收到音频消息，时长: {audio_duration}s")
                             
                             try:
@@ -427,7 +451,21 @@ async def process_conversation_segments(conversation_id: str, db: AsyncSession):
         # 没有未处理的段落，直接 flush 待处理任务
         await manager.background_runner.flush_pending(conversation.user_id)
         return
-    
+
+    # 免费版仅允许 1 个章节整理，提交前校验
+    from database.models import User as UserModel
+    from routers.quota import get_chapter_count, check_can_submit_organize
+    user = await db.get(UserModel, conversation.user_id)
+    if user:
+        chapter_count = await get_chapter_count(user.id, db)
+        can_submit, _ = check_can_submit_organize(user.subscription_type, chapter_count)
+        if not can_submit:
+            logger.info(
+                f"用户 {user.id} 章节配额已用尽，跳过提交整理任务: conversation_id={conversation_id}"
+            )
+            await manager.background_runner.flush_pending(conversation.user_id)
+            return
+
     # 将未处理的段落直接提交到 Celery（不通过去抖）
     segment_ids = [seg.id for seg in segments]
     try: