Removed VueJS frontend and dramatically enhanced API

backend/apps/api/v1/views/health.py

@@ -55,7 +55,9 @@ except ImportError:
 @extend_schema_view(
     get=extend_schema(
         summary="Health check",
-        description="Get comprehensive health check information including system metrics.",
+        description=(
+            "Get comprehensive health check information including system metrics."
+        ),
         responses={
             200: HealthCheckOutputSerializer,
             503: HealthCheckOutputSerializer,
@@ -104,18 +106,30 @@ class HealthCheckAPIView(APIView):
 
         # Process individual health checks
         for plugin in plugins:
-            plugin_name = plugin.identifier()
+            # Handle both plugin objects and strings
+            if hasattr(plugin, 'identifier'):
+                plugin_name = plugin.identifier()
+                plugin_class_name = plugin.__class__.__name__
+                critical_service = getattr(plugin, "critical_service", False)
+                response_time = getattr(plugin, "_response_time", None)
+            else:
+                # If plugin is a string, use it directly
+                plugin_name = str(plugin)
+                plugin_class_name = plugin_name
+                critical_service = False
+                response_time = None
+
             plugin_errors = (
-                errors.get(plugin.__class__.__name__, [])
+                errors.get(plugin_class_name, [])
                 if isinstance(errors, dict)
                 else []
             )
 
             health_data["checks"][plugin_name] = {
                 "status": "healthy" if not plugin_errors else "unhealthy",
-                "critical": getattr(plugin, "critical_service", False),
+                "critical": critical_service,
                 "errors": [str(error) for error in plugin_errors],
-                "response_time_ms": getattr(plugin, "_response_time", None),
+                "response_time_ms": response_time,
             }
 
         # Calculate total response time
@@ -320,6 +334,16 @@ class PerformanceMetricsAPIView(APIView):
         },
         tags=["Health"],
     ),
+    options=extend_schema(
+        summary="CORS preflight for simple health check",
+        description=(
+            "Handle CORS preflight requests for the simple health check endpoint."
+        ),
+        responses={
+            200: SimpleHealthOutputSerializer,
+        },
+        tags=["Health"],
+    ),
 )
 class SimpleHealthAPIView(APIView):
     """Simple health check endpoint for load balancers."""
@@ -342,7 +366,7 @@ class SimpleHealthAPIView(APIView):
                 "timestamp": timezone.now(),
             }
             serializer = SimpleHealthOutputSerializer(response_data)
-            return Response(serializer.data)
+            return Response(serializer.data, status=200)
         except Exception as e:
             response_data = {
                 "status": "error",
@@ -351,3 +375,12 @@ class SimpleHealthAPIView(APIView):
             }
             serializer = SimpleHealthOutputSerializer(response_data)
             return Response(serializer.data, status=503)
+
+    def options(self, request: Request) -> Response:
+        """Handle OPTIONS requests for CORS preflight."""
+        response_data = {
+            "status": "ok",
+            "timestamp": timezone.now(),
+        }
+        serializer = SimpleHealthOutputSerializer(response_data)
+        return Response(serializer.data)