Earworm v0.2.1 — Navigator Surface

Small store-API subrelease powering the new akousmata listening navigator (github.com/sonicfieldlabs/akousmata):

• tags() — distinct tags with usage counts.
• changed_since(iso) — records created after a timestamp, for watchers and realtime feeds.
• forget(id, delete_audio=False) — the memory operation: removes the record and its outgoing edges, keeps inbound edges as reportable absence (rule 7), and deletes the audio object only when no other record shares its content hash.

Docs now note that the store's default location is also the navigator app's home: code public, data untracked.