- Updated command specs: added `w`, `write`, `wq`, `x`, and `session save` with proper descriptions.
- Introduced `SaveStatus` enum and helper methods for path display and buffer labeling.
- Implemented `update_paths` in `Workspace` to keep title in sync with file paths.
- Added comprehensive `save_active_code_buffer` and enhanced `close_active_code_buffer` logic, including force‑close via `!`.
- Parsed force flag from commands (e.g., `:q!`) and routed commands to new save/close workflows.
- Integrated session save subcommand with optional description generation.