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backend/app/routers/health.py

@@ -0,0 +1,23 @@
+from fastapi import APIRouter, Depends
+from sqlmodel import Session, func, select
+
+from app.database import get_session
+from app.ha_client import ha_client
+from app.models import EntityCache
+from app.scan_state import scan_state
+
+router = APIRouter()
+
+
+@router.get("/health")
+async def health(session: Session = Depends(get_session)):
+    connected, message = await ha_client.check_connection()
+    count = session.exec(select(func.count()).select_from(EntityCache)).one()
+
+    return {
+        "status": "ok",
+        "ha_connected": connected,
+        "ha_message": message,
+        "entity_count": count,
+        **scan_state.to_dict(),
+    }