feat: add update service env label

backend/update.py

@@ -231,8 +231,16 @@ def get_service_status(settings: Settings) -> Dict[str, Any]:
             "status_code": None,
             "error": "update service url not configured",
             "checked_url": "",
+            "environment": "unknown",
         }
 
+    env = "prod"
+    lowered = base_url.lower()
+    if "://dev." in lowered or lowered.startswith("dev."):
+        env = "dev"
+    elif "://staging." in lowered or lowered.startswith("staging."):
+        env = "staging"
+
     check_url = base_url
     try:
         with httpx.Client(timeout=3.0) as client:
@@ -243,6 +251,7 @@ def get_service_status(settings: Settings) -> Dict[str, Any]:
             "status_code": response.status_code,
             "error": None,
             "checked_url": check_url,
+            "environment": env,
         }
     except Exception as exc:
         return {
@@ -251,4 +260,5 @@ def get_service_status(settings: Settings) -> Dict[str, Any]:
             "status_code": None,
             "error": str(exc),
             "checked_url": check_url,
+            "environment": env,
         }