New cocottetech platform service (NestJS, port 3061) that owns the canonical
people/identities/relationships/signals model in its OWN database (black:25461),
not the shared platform.db — per the per-service-DB directive. Ported from
lilith's entities/people, dropping the lilith-specific clients/contacts bridges
and quinn_my ownership. Internal /internal/people/* API (upsert-identity,
signals, get, by-identity, summary) behind a service-token guard; health is
public. Consumed over HTTP by prospector and other apps. tsc clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
