poc-memory init now:
- Creates the data directory
- Installs the memory-search hook into Claude settings.json
- Scaffolds a starter config.jsonl if none exists
load-context now prints a command reference block at the top so the
AI assistant learns how to use the memory system from the memory
system itself — no CLAUDE.md dependency needed.
Also extract install_hook() as a public function so both init and
daemon install can use it.
Co-Authored-By: ProofOfConcept <poc@bcachefs.org>
