Class AppApi

Set a setting: write the key into the bag, persist the row, and (by mutating the very instance the cache holds) refresh the cache. Open namespace — any key is accepted; the config verb surfaces a soft note for unregistered keys.

The current value of a setting (the seeded-or-operator-set value), or '' for a key that was never seeded or set. Synchronous (cached); safe from no-await consumers.

Every setting and its current value — the keys present in the bag (seeded + any operator-set ad-hoc keys). Backs the config listing.