v0.57.14: Session tags, word-level diffs, new models, and built-in skills

New features

- Session tags - Categorize sessions with custom tags using the new --tag CLI flag for better organization
- Word-level diff highlighting - GitHub diff mode now highlights only changed words within lines instead of entire lines
- GPT-5.3-Codex model - Added GPT-5.3-Codex model with multi-turn phase support
- GLM-5 model - Added GLM-5 model via Fireworks
- MiniMax M2.5 model - Added MiniMax M2.5, replacing M2.1
- Create-PR skill - New built-in skill for guided pull request creation with local verification checklist
- Worker droid - Basic worker droid now ships as a built-in droid for task delegation
- PR linking - Sessions now display a status indicator showing linked PRs from git operations

Bug fixes

- Stdin character corruption - Replaced text input component to eliminate character corruption and broken special keys
- NODE_ENV injection - Stopped injecting NODE_ENV=production into shell environment, fixing npm devDependencies issues
- MCP SDK alignment - Updated to MCP SDK 1.26 with proper schema validation
- File watcher limits - More granular file watching to avoid "too many open file descriptors" errors
- Factory App connection race - Fixed daemon connection race condition in the Factory App with polling retry logic
- Sidebar sessions - Fixed sessions disappearing from sidebar (Factory App)
- Open in editor - Fixed "open in editor" functionality in the Factory App