563d6a0ab9
- Replaced plan:// protocol with notes:// for session-scoped artifact storage and plan finalization. - Added title parameter to exit_plan_mode tool to enable plan file renaming during approval workflow. - Implemented NotesProtocolHandler for notes:// URL scheme with path traversal protection and session fallback. - Added renameApprovedPlanFile function to handle plan artifact finalization with validation and error handling. - Updated system prompt documentation to reference notes:// protocol and internal URL schemes for artifact access.