stacks/notes/: new stack with CouchDB 3 for obsidian-livesync sync backend.
Vault data at /config/couchdb/data; CORS must be configured post-deploy
via Fauxton (/_utils). Claude integration via CouchDB REST API documented
in compose comments.
Caddyfile: obsidian.ginnoir.com → couchdb:5984 (public for mobile sync).
