v0.71.0: Autofix PR button, worktree naming, and Create tool syntax highlighting

New features

- Autofix PR button - Automatically fix issues found in pull requests directly from the app (Factory App)
- MCP OAuth configuration - Added OAuth configuration support for customizable fields in MCP server settings

Improvements

- Worktree naming - The --worktree flag now accepts an optional name argument; the --branch flag has been removed
- Create tool syntax highlighting - Create tool results now display with syntax highlighting instead of diff format

Bug fixes

- Semantic diff rendering - Fixed diff rendering in semantic diff view
- @ search prewarming - Fixed @ search prewarming for improved file suggestion performance
- Factory App download button - Fixed download Factory App button incorrectly showing in the Factory App
- Terminal creation flash - Fixed "(exited)" text briefly flashing when creating new terminals (Factory App)