feat(drive): prepare removal of user_id

this commit changes GET /api/<resources> to return resource caller has access to
    this is not anymmore resources users is owner of

src/common/stubs.rs

@@ -274,10 +274,9 @@ impl FolderRepository for StubFolderStoragePort {
         Ok(Vec::new())
     }
 
-    async fn list_folders_by_owner(
+    async fn list_root_folders_for_caller(
         &self,
-        _parent_id: Option<&str>,
-        _owner_id: Uuid,
+        _caller_id: Uuid,
     ) -> Result<Vec<Folder>, DomainError> {
         Ok(Vec::new())
     }
@@ -292,10 +291,9 @@ impl FolderRepository for StubFolderStoragePort {
         Ok((Vec::new(), Some(0)))
     }
 
-    async fn list_folders_by_owner_paginated(
+    async fn list_root_folders_for_caller_paginated(
         &self,
-        _parent_id: Option<&str>,
-        _owner_id: Uuid,
+        _caller_id: Uuid,
         _offset: usize,
         _limit: usize,
         _include_total: bool,