```

feat(feishu): 添加飞书入站事件inbox和混合数据库协调功能

- 实现飞书入站事件持久化inbox机制，支持状态管理、租约锁定和重试退避
- 添加混合数据库基线协调工具，确保平台PostgreSQL结构安全对齐
- 增加运行组件心跳检测和readiness就绪检查机制
- 实现app_ticket事件的安全轮换和验证处理
- 添加生产环境运行编排和fail-closed安全机制
- 支持webhook快速确认和长连接独立进程处理
- 完善个人数据擦除时的待处理事件清理功能
```

app/modules/feishu/routes.py

@@ -1,10 +1,18 @@
-from fastapi import APIRouter, Depends, Request
+from fastapi import APIRouter, BackgroundTasks, Depends, HTTPException, Request, status
 from sqlalchemy.orm import Session
 
+from app.core.background.task_queue import enqueue_feishu_inbound_event
+from app.core.config import get_settings
+from app.core.constants import ActorValue
 from app.core.database import get_db
 from app.core.security import ApiPrincipal, require_api_key
 from app.application.feishu import FeishuCommandService, FeishuEventService
-from app.modules.feishu.constants import FeishuEventSource, FeishuPayloadKey, FeishuResponseKey
+from app.modules.feishu.constants import (
+    FeishuEventSource,
+    FeishuEventTransport,
+    FeishuPayloadKey,
+    FeishuResponseKey,
+)
 from app.modules.feishu.event_verification import FeishuWebhookVerifier
 from app.modules.feishu.schemas import (
     FeishuCardMessage,
@@ -19,15 +27,31 @@ router = APIRouter()
 
 
 @router.post("/webhook")
-async def feishu_webhook(request: Request, db: Session = Depends(get_db)) -> dict:
+async def feishu_webhook(
+    request: Request,
+    background_tasks: BackgroundTasks,
+    db: Session = Depends(get_db),
+) -> dict:
     """Handle Feishu webhook challenge and text command events."""
 
+    if get_settings().feishu_event_transport != FeishuEventTransport.WEBHOOK:
+        raise HTTPException(
+            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
+            detail="Feishu webhook transport is disabled",
+        )
     payload = FeishuWebhookVerifier().verify(await request.body(), request.headers)
-    return FeishuEventService(db)._handle_verified_event(
+    acceptance = FeishuEventService(db).accept_verified_event(
         payload,
         source=FeishuEventSource.WEBHOOK,
         auto_reply=True,
     )
+    if acceptance.event_key is not None and acceptance.should_dispatch:
+        background_tasks.add_task(
+            enqueue_feishu_inbound_event,
+            acceptance.event_key,
+            actor=ActorValue.FEISHU,
+        )
+    return acceptance.response
 
 
 @router.post("/send-text", response_model=FeishuSendResult)