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/routers/xcx_board.py

@@ -27,25 +27,30 @@ from app.schemas.xcx_board import (
     SkillFilterEnum,
 )
 from app.services import board_service
+from app.trace.decorators import trace_service
 
 router = APIRouter(prefix="/api/xcx/board", tags=["xcx-board"])
 
 
 @router.get("/coaches", response_model=CoachBoardResponse)
+@trace_service("获取助教看板", "Get coach board")
 async def get_coach_board(
     sort: CoachSortEnum = Query(default=CoachSortEnum.perf_desc),
     skill: SkillFilterEnum = Query(default=SkillFilterEnum.ALL),
     time: BoardTimeEnum = Query(default=BoardTimeEnum.month),
+    page: int = Query(default=1, ge=1),
+    page_size: int = Query(default=20, ge=1, le=100),
     user: CurrentUser = Depends(require_permission("view_board_coach")),
 ):
     """助教看板（BOARD-1）。"""
     return await board_service.get_coach_board(
         sort=sort.value, skill=skill.value, time=time.value,
-        site_id=user.site_id,
+        page=page, page_size=page_size, site_id=user.site_id,
     )
 
 
 @router.get("/customers", response_model=CustomerBoardResponse)
+@trace_service("获取客户看板", "Get customer board")
 async def get_customer_board(
     dimension: CustomerDimensionEnum = Query(default=CustomerDimensionEnum.recall),
     project: ProjectFilterEnum = Query(default=ProjectFilterEnum.ALL),
@@ -65,6 +70,7 @@ async def get_customer_board(
     response_model=FinanceBoardResponse,
     response_model_exclude_none=True,
 )
+@trace_service("获取财务看板", "Get finance board")
 async def get_finance_board(
     time: FinanceTimeEnum = Query(default=FinanceTimeEnum.month),
     area: AreaFilterEnum = Query(default=AreaFilterEnum.all),