fix: correct historical analysis endpoint and Chart.js loading

- Fix endpoint to use get_all_pods() instead of non-existent get_pods_by_selector()
- Move Chart.js scripts to end of body for proper loading order
- Add proper error handling for workload not found cases
- Ensure Chart.js is available before creating graphs

app/api/routes.py

@@ -1268,13 +1268,14 @@ async def get_workload_historical_details(
 ):
     """Get detailed historical analysis for a specific workload"""
     try:
-        # Get pods for this workload
-        pods = await k8s_client.get_pods_by_selector(
-            namespace=namespace,
-            selector={'app': workload}
-        )
+        # Get all pods and filter by namespace and workload
+        all_pods = await k8s_client.get_all_pods()
+        workload_pods = [
+            pod for pod in all_pods 
+            if pod.namespace == namespace and _extract_workload_name(pod.name) == workload
+        ]
         
-        if not pods:
+        if not workload_pods:
             raise HTTPException(status_code=404, detail=f"Workload {workload} not found in namespace {namespace}")
         
         # Get historical data from Prometheus

app/static/index.html

@@ -17,9 +17,6 @@
     <!-- Font Awesome for icons -->
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
     
-    <!-- Chart.js for historical analysis graphs -->
-    <script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.0/dist/chart.min.js"></script>
-    <script src="https://cdn.jsdelivr.net/npm/chartjs-adapter-date-fns@3.0.0/dist/chartjs-adapter-date-fns.bundle.min.js"></script>
     
     <!-- Custom OpenShift-like styles -->
     <style>
@@ -1668,5 +1665,9 @@
                 `;
         }
     </script>
+    
+    <!-- Chart.js for historical analysis graphs -->
+    <script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.0/dist/chart.min.js"></script>
+    <script src="https://cdn.jsdelivr.net/npm/chartjs-adapter-date-fns@3.0.0/dist/chartjs-adapter-date-fns.bundle.min.js"></script>
 </body>
 </html>