feat: 累积功能变更 — 聊天集成、租户管理、小程序更新、ETL 增强、迁移脚本

包含多个会话的累积代码变更：
- backend: AI 聊天服务、触发器调度、认证增强、WebSocket、调度器最小间隔
- admin-web: ETL 状态页、任务管理、调度配置、登录优化
- miniprogram: 看板页面、聊天集成、UI 组件、导航更新
- etl: DWS 新任务（finance_area_daily/board_cache）、连接器增强
- tenant-admin: 项目初始化
- db: 19 个迁移脚本（etl_feiqiu 11 + zqyy_app 8）
- packages/shared: 枚举和工具函数更新
- tools: 数据库工具、报表生成、健康检查
- docs: PRD/架构/部署/合约文档更新

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/backend/app/ai/conversation_service.py

@@ -27,6 +27,7 @@ class ConversationService:
         site_id: int,
         source_page: str | None = None,
         source_context: dict | None = None,
+        title: str | None = None,
     ) -> int:
         """创建对话记录，返回 conversation_id。
 
@@ -38,8 +39,8 @@ class ConversationService:
                 cur.execute(
                     """
                     INSERT INTO biz.ai_conversations
-                        (user_id, nickname, app_id, site_id, source_page, source_context)
-                    VALUES (%s, %s, %s, %s, %s, %s)
+                        (user_id, nickname, app_id, site_id, source_page, source_context, title)
+                    VALUES (%s, %s, %s, %s, %s, %s, %s)
                     RETURNING id
                     """,
                     (
@@ -49,6 +50,7 @@ class ConversationService:
                         site_id,
                         source_page,
                         json.dumps(source_context, ensure_ascii=False) if source_context else None,
+                        title,
                     ),
                 )
                 row = cur.fetchone()
@@ -89,6 +91,22 @@ class ConversationService:
         finally:
             conn.close()
 
+    def update_title(self, conversation_id: int, title: str) -> None:
+        """更新对话标题。"""
+        conn = get_connection()
+        try:
+            with conn.cursor() as cur:
+                cur.execute(
+                    "UPDATE biz.ai_conversations SET title = %s WHERE id = %s",
+                    (title, conversation_id),
+                )
+                conn.commit()
+        except Exception:
+            conn.rollback()
+            raise
+        finally:
+            conn.close()
+
     def get_conversations(
         self,
         user_id: int | str,
@@ -104,7 +122,7 @@ class ConversationService:
                 cur.execute(
                     """
                     SELECT id, user_id, nickname, app_id, site_id,
-                           source_page, source_context, created_at
+                           source_page, source_context, title, created_at
                     FROM biz.ai_conversations
                     WHERE user_id = %s AND site_id = %s
                     ORDER BY created_at DESC