final_report.md

I have completed the task.

1. Imports Added: Added ThreadChannel from discord.js and imported dataStore and worktreeManager.
2. Button Handler Logic: Updated handleButton to dispatch delete and pr actions.
3. Functions Implemented:
   • handleWorktreeDelete: Removes worktree (preserving branch), clears mapping, and archives thread.
   • handleWorktreePR: Spawns server, manages session, and sends a PR prompt to OpenCode.
4. Verification: Ran npx tsc --noEmit and it passed without errors.

The code in src/handlers/buttonHandler.ts now supports the requested Delete and PR buttons.