feat(fleet): show instance resource metrics

apps/api/src/interface/http/instance-routes.ts

@@ -19,12 +19,14 @@ import {
   DeleteInstanceOperation,
   DeleteInstanceOperationError,
 } from '../../application/operations/delete-instance-operation.js';
+import type { InstanceResourceService } from '../../application/resources/instance-resource-service.js';
 
 export interface InstanceRoutesOptions {
   readonly instances: InstanceService;
   readonly connections?: ConnectionProbe;
   readonly login?: InstanceLoginService;
   readonly deletion?: DeleteInstanceOperation;
+  readonly resources?: InstanceResourceService;
   readonly registerDeletionPreparationRoute?: boolean;
 }
 const problem = (
@@ -336,6 +338,13 @@ export function registerInstanceRoutes(app: FastifyInstance, options: InstanceRo
       return result;
     }),
   );
+  if (options.resources)
+    app.get(
+      '/api/v1/instances/:instanceId/resources',
+      wrap(async (request) =>
+        options.resources!.get((request.params as { instanceId: string }).instanceId),
+      ),
+    );
   app.patch(
     '/api/v1/instances/:instanceId',
     { schema: { body: instancePatchSchema } },