Asana subtasks not visible as board cards even when added to a project

ClaudeBoard fetches board cards via /tasks?project=GID, which only returns top-level project tasks. Tasks that are subtasks of a parent task don't appear as board cards, even when they've been explicitly added to the project via add_projects.

This forces a workaround: either detach subtasks from their parent (losing Asana hierarchy) or use local-only session anchors (losing Asana visibility).

Suggested fix: supplement the /tasks?project= fetch with Asana's search API (/workspaces/GID/tasks/search?projects.any=GID) which returns subtasks that belong to a project. Or offer a toggle to include subtasks in the board view.