feat: T03+T04 backend - FastAPI, DB models, Rentman integration, admin auth, APScheduler

backend/app/routers/health.py

@@ -0,0 +1,25 @@
+"""Health check router."""
+from fastapi import APIRouter, Depends
+from sqlalchemy import text
+from sqlalchemy.ext.asyncio import AsyncSession
+from app.database import get_db, engine
+from app.cache import cache
+
+router = APIRouter(prefix="/api/health", tags=["health"])
+
+
+@router.get("")
+async def health_check(db: AsyncSession = Depends(get_db)) -> dict:
+    """Return health status: app, db, redis."""
+    db_ok = "connected"
+    redis_ok = "connected"
+    try:
+        await db.execute(text("SELECT 1"))
+    except Exception:
+        db_ok = "disconnected"
+    try:
+        await cache.connect()
+        await cache._redis.ping()
+    except Exception:
+        redis_ok = "disconnected"
+    return {"status": "ok", "db": db_ok, "redis": redis_ok}