feat: add slug-only dashboard profile filter and unify backend imports

backend/src/services/resource_service.py

@@ -46,10 +46,11 @@ class ResourceService:
         env: Any, 
         tasks: Optional[List[Task]] = None,
         include_git_status: bool = True,
+        require_slug: bool = False,
     ) -> List[Dict[str, Any]]:
         with belief_scope("get_dashboards_with_status", f"env={env.id}"):
             client = SupersetClient(env)
-            dashboards = client.get_dashboards_summary()
+            dashboards = client.get_dashboards_summary(require_slug=require_slug)
             
             # Enhance each dashboard with Git status and task status
             result = []
@@ -96,6 +97,7 @@ class ResourceService:
         page_size: int = 10,
         search: Optional[str] = None,
         include_git_status: bool = True,
+        require_slug: bool = False,
     ) -> Dict[str, Any]:
         with belief_scope(
             "get_dashboards_page_with_status",
@@ -106,6 +108,7 @@ class ResourceService:
                 page=page,
                 page_size=page_size,
                 search=search,
+                require_slug=require_slug,
             )
 
             result = []