Update a worktree to latest main

When the user asks to update, sync, or refresh a worktree against main — e.g. "update this environment to latest main", "sync my checkout", "bring this worktree up to date" — beyond a plain branch sync (see pr-sync-branch for that).

1. Fetch and detach onto the latest main commit:

   git fetch origin main && git checkout --detach origin/main
   

   Check git status --porcelain first; stash or commit anything unexpected before checking out.

2. Sync the vcpkg submodule to what main's tree expects:

   git submodule update --init vcpkg
   

3. Rebuild settings and skills so the Claude Code harness picks up org-source changes:

   ./projects/ores.compass/compass.sh build --direct settings
   ./projects/ores.compass/compass.sh build --direct skills
   

   Remind the user to /reload-skills afterwards.

4. Verify with compass bearings — the "Is the environment up?" section flags any remaining =.env=/vcpkg/settings drift.

• How do I update a worktree to latest main?

• How do I manage the checkout environment with compass?