feat(analytics): E0-lite 数据健康端点——数据截至+实体新鲜度

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

yunke-server/app/api/main.py

@@ -21,6 +21,7 @@ Includes:
 * ``GET /api/search`` (see :mod:`app.api.routers.search`).
 * ``GET /api/export/chat-html`` (see :mod:`app.api.routers.export`).
 * ``GET /api/staff-stats`` (see :mod:`app.api.routers.staff_stats`).
+* ``GET /api/analytics/health`` (see :mod:`app.api.routers.analytics`).
 
 CORS is configured to read explicit allowed origins from ``Settings.cors_origins``
 (comma-separated ``CORS_ORIGINS`` env var). Empty (default) falls back to the dev
@@ -42,6 +43,7 @@ from fastapi.middleware.cors import CORSMiddleware
 
 from app.api.auth import require_auth
 from app.api.routers import (
+    analytics,
     calls,
     customer,
     export,
@@ -98,6 +100,7 @@ app.include_router(search.router)
 app.include_router(sessions.router)
 app.include_router(export.router)
 app.include_router(voice_clips.router)
+app.include_router(analytics.router)
 
 
 @app.get("/api/health")