[Feature Request] Add configurable worktree directory naming instead of random Docker-style names

Bug Description
When starting a new worktree session in the Mac app, the directory gets a random Docker-style name (e.g., "suspicious-merkle", "festive-gates"). It would be great to either prompt for a name, auto-generate from the task description, or provide a naming config. The random names make it hard to identify worktrees in ~/.claude-worktrees/

Environment Info

• Platform: darwin
• Terminal: Apple_Terminal
• Version: 2.1.37
• Feedback ID: 271d259a-a161-4fb1-bd68-7b1496938686

Errors

[{"error":"Error: Failed to delete keychain entry\n    at Bc9 (/$bunfs/root/claude:177:10875)\n    at async Xc9 (/$bunfs/root/claude:178:592)\n    at async Qc9 (/$bunfs/root/claude:178:496)\n    at async LLR (/$bunfs/root/claude:1915:2222)\n    at async startOAuthFlow (/$bunfs/root/claude:1915:3568)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-09T17:17:59.723Z"}]