v0.156.2: Conversation rewind and reliability fixes

New features

- Rewind conversation - The new /rewind-conversation command rewinds the chat and restores your files to an earlier point (app)
- Org hooks governance - Organizations can now centrally control hooks settings across their members

Improvements

- Clickable message links - URLs in your messages are now clickable
- Light terminal colors - Improved white rendering in the light terminal theme

Bug fixes

- Reasoning indicator - Non-thinking models no longer show a reasoning indicator
- Execute step shimmer - Fixed a stale loading shimmer left on completed execute steps
- Windows hooks - Preserved command quoting for hooks on Windows
- MCP server logos - MCP server logos now keep their original colors