v0.89.0: Spec mode redesign, Missions worker view, fuzzy model search, and cleaner tool output

New features

- Missions worker view - New view for monitoring individual Missions worker progress and output

Improvements

- Spec mode redesign - Redesigned spec mode with a refreshed layout and improved workflow
- Fuzzy search in model selector - Model selector now supports fuzzy search for easier model filtering
- Cleaner tool output - Grep and Glob tool calls now display with the same clean formatting as Read tool calls
- Plan display polish - Improved plan display formatting and cleaner worker output
- Changelog dismissal - Changelog now auto-hides after first view and can be manually dismissed
- Billable Tokens renamed to Factory Standard Credits - "Billable Tokens" renamed to "Factory Standard Credits" throughout the UI
- Auto-updating plugins - Installed plugins now auto-update on CLI startup

Bug fixes

- Missions worker stability - Permission blocks in Missions workers no longer terminate the session
- /exit-mission autocomplete - /exit-mission autocomplete now only appears when actively in a mission
- Empty message handling - Fixed empty messages appearing in sessions