# Implementation: Project Migration Script

## Summary

Created `scripts/migrate-project.sh` to clean up projects that were set up under the old copy-based model. Also updated `prompts/onboarding.md` to detect stale projects and offer migration.

## Changes Made

### `scripts/migrate-project.sh`
Shell script that:
1. Scans `{project}/.automaton/` for files that now live in `~/.automaton/`
2. Files **identical to global** → deleted (framework provides them)
3. Files **different from global** → moved to `.automaton/extensions/`
4. Preserves `.agent.md` and `.rules.md` as-is
5. Reports what was deleted, moved, and kept

### `prompts/onboarding.md`
Added "Migration Check" section at the end:
- During onboarding, checks if project has stale framework file copies
- Identifies files beyond `.agent.md` and `.rules.md`
- Offers to run `migrate-project.sh` or provides manual instructions

## Files Created
- `scripts/migrate-project.sh` — migration shell script (125 lines)

## Files Modified
- `prompts/onboarding.md` — added migration detection section