Proposal: Update changelog path in CLAUDE.md

What

Update line 99 — change vault/90_inbox/changelog.md to vault/00_system/logs/watch-changelog.md.

Why

The watch changelog is an auto-generated audit log, not an inbox item. It was moved to vault/00_system/logs/ where it belongs. All other references (hook, tests, status skill, FR-003) are already updated.

Spec

From:

- **Watch**: Edit/Write allowed but logged to `vault/90_inbox/changelog.md` + terminal notification.

To:

- **Watch**: Edit/Write allowed but logged to `vault/00_system/logs/watch-changelog.md` + terminal notification.

Impact

CLAUDE.md only — all other files already updated.