fix(dashboards): lazy-load git status for visible rows

backend/src/api/routes/dashboards.py

@@ -199,7 +199,11 @@ async def get_dashboards(
             all_tasks = task_manager.get_all_tasks()
             
             # Fetch dashboards with status using ResourceService
-            dashboards = await resource_service.get_dashboards_with_status(env, all_tasks)
+            dashboards = await resource_service.get_dashboards_with_status(
+                env,
+                all_tasks,
+                include_git_status=False,
+            )
             
             # Apply search filter if provided
             if search:

backend/src/services/resource_service.py

@@ -44,7 +44,8 @@ class ResourceService:
     async def get_dashboards_with_status(
         self, 
         env: Any, 
-        tasks: Optional[List[Task]] = None
+        tasks: Optional[List[Task]] = None,
+        include_git_status: bool = True,
     ) -> List[Dict[str, Any]]:
         with belief_scope("get_dashboards_with_status", f"env={env.id}"):
             client = SupersetClient(env)
@@ -57,9 +58,12 @@ class ResourceService:
                 dashboard_dict = dashboard
                 dashboard_id = dashboard_dict.get('id')
                 
-                # Get Git status if repo exists
+                # Git status can be skipped for list endpoints and loaded lazily on UI side.
+                if include_git_status:
                     git_status = self._get_git_status_for_dashboard(dashboard_id)
                     dashboard_dict['git_status'] = git_status
+                else:
+                    dashboard_dict['git_status'] = None
                 
                 # Show status of the latest LLM validation for this dashboard.
                 last_task = self._get_last_llm_task_for_dashboard(