Adds a project-local /sync-repo skill whose real instructions are encrypted
at rest (AES-256-GCM + scrypt) in sync-repo.enc and only revealed in-session
after the user supplies the correct passphrase. Plaintext SYNC.md is gitignored
and never committed; *.enc is marked binary to protect the ciphertext bytes.
AI Assisted
analyzing requirements
- Added user verification checklist and git checkpoint to `Implementation Phase 3` - Phase completion reports now guide users through verification and git checkpointing before starting the next phase