v0.144.0: Session file suggestions, safer command risk handling, and MCP reliability fixes

New features

- Session file suggestions - The new session page now suggests relevant files as you get started (app)

Improvements

- Safer command risk handling - Commands that could destroy your working tree are now treated as high risk
- tmux key support - Improved keyboard handling when running inside tmux

Bug fixes

- MCP reliability - Improved reliability of MCP authentication and connectors