chore: isolate frontend and backend via npm workspaces and @mmapp/contracts

Co-authored-by: Cursor <cursoragent@cursor.com>

components/dashboard/internet-path-map.tsx

@@ -183,6 +183,18 @@ export function InternetPathMapCard({ model }: { model: InternetPathViewModel |
             wan: model.activeWanUplink,
             jumpHost: model.fallbackJumpHost,
             exitNode: model.fallbackExitNode,
+            wanJhMetrics: {
+              pingMs: null,
+              dlMbps: null,
+              ulMbps: null,
+              fromMonitoring: false,
+            },
+            jhExitMetrics: {
+              pingMs: null,
+              dlMbps: null,
+              ulMbps: null,
+              fromMonitoring: false,
+            },
           }
         : null
     )