Fix database health check by adding commit after query execution

app/api/health.py

@@ -1,5 +1,6 @@
 from fastapi import APIRouter, Depends
 from sqlalchemy.orm import Session
+from sqlalchemy import text
 from datetime import datetime
 
 from app.db.session import get_db
@@ -13,7 +14,8 @@ def health_check(db: Session = Depends(get_db)):
     """
     try:
         # Check database connection
-        db.execute("SELECT 1")
+        db.execute(text("SELECT 1"))
+        db.commit()
         db_status = "healthy"
     except Exception as e:
         db_status = f"unhealthy: {str(e)}"