56e760f2bc
- Added new @oh-my-pi/pi-git-tool package with 22 git operations, safety guards, caching, and GitHub CLI integration. - Added /wt slash command for git worktree management with create, list, merge, remove, spawn, and parallel operations. - Added worktree library with collapse strategies (simple, merge-base, rebase) and session tracking for agent tasks. - Added structured git tool with TypeBox schema exposing gitTool and createGitTool from SDK. - Added safety policies blocking force push to protected branches and warning on destructive operations.