v0.72.0: GPT-5.4 Fast model, /fast command, chat UI refresh, and MCP OAuth for remote sessions

New features

- GPT-5.4 Fast model - New GPT-5.4 Fast model available with a /fast slash command for quick model switching
- MCP OAuth in remote sessions - MCP servers requiring OAuth authentication now work in remote Droid Computer sessions
- Chat UI refresh - Refreshed chat interface with improved tool display, user message styling, and interrupt indicators
- Mission subagent streaming - Real-time streaming updates from subagents in mission control

Improvements

- Incremental rendering - Enabled incremental rendering for smoother and more responsive CLI output
- Faster Droid Computer sessions - Optimistic preconnection reduces wait time when starting Droid Computer sessions (Factory App)
- Working directory validation - Droid Computer sessions now validate working directory configuration before starting (Factory App)

Bug fixes

- Grep tool overflow - Fixed Grep tool crashing on very large search results by returning partial results with an increased buffer
- Thinking indicator spacing - Fixed spacing below the thinking indicator display
- Timeout warnings - Fixed spurious timeout warnings appearing during normal operation
- Sentry integration reliability - Improved reliability of the Sentry integration connection
- Slack integration reliability - Improved error handling for Slack integration connections
- Mission Mode reasoning - Fixed reasoning issues in Mission Mode