WHY: the API service had no settings surface of its own — core
NestQuestSettings is built from HA config-entry options, which the API
(no config entry) cannot read. The core now has an HA-free durable
settings store (core/settings_store.py) that keeps a validated
ten-field JSON document in the existing nestquest_meta_state table
under the well-known "settings" key: load_settings resolves it through
the core _FIELDS validators (defaults for absent fields, per-field
fallback over a corrupt document so the service never crashes) and
update_settings validates every provided field BEFORE writing, so a
rejected change — an unknown field or an invalid value, each named in
the error — never leaves a half-applied document behind. The admin
plane's GET/PATCH /settings routes are thin adapters over that store;
the integration's HA options remain a temporary separate source until
Feature 18 wires the client to the API.
overseer
dev_agent