first commit

app/routers/health.py

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+from fastapi import APIRouter, HTTPException, status
+from sqlalchemy import text
+
+from app.deps import DbSession
+
+
+router = APIRouter(tags=["系统"])
+
+
+@router.get("/health")
+async def health(db: DbSession) -> dict[str, str]:
+    try:
+        await db.execute(text("select 1"))
+    except Exception as exc:
+        raise HTTPException(
+            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
+            detail="数据库不可用",
+        ) from exc
+    return {"status": "ok", "database": "ok"}