Vercel deployments, simplified thinking levels

Use the Deployments tab to view Vercel and GitHub deployments associated with each PR.

We’ve simplified the thinking levels in Conductor. Use ⌥T to toggle thinking on and off. Thinking is now enabled by default for new users.

Fixes

• Fixed the left sidebar being hidden when all repositories were deleted
• Improved error messaging when spotlight fails to launch due to an ongoing rebase
• Fixed CONDUCTOR_* env variables not being visible to Claude or Codex
• Tweaked PR creation instructions to use the GetWorkspaceDiff tool

Misc

• Dialogs have more padding
• Simplified version control header