- Replaced large-paste wrap options with a single `<attachment>` wrapper action.
- Added explicit local-file attachment and inline paste choices to the selector.
- Updated the changelog to document the new large-paste action set.
- Stopped and cleared the working loader before auto-compaction and auto-retry.
- Ensured stale loadingAnimation is removed so agent_start recreates the Working loader.
- Set catalog model input/output costs to 0.09/0.18 and reduced maxTokens to 65536.