/api/config/set and camera deletion re-parse yaml into a fresh FrigateConfig and swap it in, then re-layered the persisted runtime toggle overrides so a camera the user turned off wouldn't come back on. That re-layer ran apply_runtime_state, which replays each override through the command handlers, so every save re-published a ZMQ config update, a retained MQTT state message, and a runtime-state disk write for every camera with a stored toggle. All of it was redundant: the worker processes were never swapped and still hold the live toggle values, so only the in-process config object the API and dispatcher read was out of date. The extra traffic churned the retained MQTT topics, amplified disk writes, and co-drained enabled updates with other topics on the config socket.
Add Dispatcher.reapply_runtime_state_to_config, which corrects only the swapped-in config object, mirroring the field mutations and gates of the _on_*_command handlers with no ZMQ, MQTT, or disk writes. swap_runtime_config now calls it instead of apply_runtime_state; apply_runtime_state is unchanged and still used at startup, where the workers genuinely must be told.
* preserve runtime camera toggles across config saves
Runtime toggles (camera on/off, detect, recordings, snapshots, audio) mutate the in-memory config and persist an override to .runtime_state.json. /api/config/set re-parses yaml into a fresh FrigateConfig and swaps it in, re-applying the yaml and profile layers but dropping the runtime layer, so a camera turned off from the dashboard came back on when an unrelated camera was saved. The workers were never notified, so it only appeared to come back: the UI streamed go2rtc while ffmpeg stayed stopped.
Extract the startup replay into Dispatcher.apply_runtime_state() and call it from config_set after the swap, re-layering the overrides and republishing them so workers and the UI reconverge.
Remove the broad clear_runtime_state() from ProfileManager.update_config, which is only ever reached from config_set: with a profile active, every save wiped every camera's overrides from disk. The broad wipe stays in activate_profile, where a real profile switch does invalidate the steady state. Saves still clear the keys they rewrote via clear_runtime_state_for_yaml_keys, so yaml wins where the two disagree.
* sync runtime config on camera delete and prune its overrides
Deleting a camera re-parsed yaml into a fresh FrigateConfig but only rebound app.frigate_config and genai_manager, never dispatcher.config (nor profile_manager, stats_emitter, or the runtime overrides). The API and the dispatcher then drifted onto different config objects until the next config save re-synced them, so the API reported surviving cameras with their yaml enabled state while the dispatcher still acted on their real runtime state.
Extract the config swap that config_set already does into a shared swap_runtime_config helper and call it from both sites, so every collaborator is rebound and the surviving cameras' runtime toggles are re-layered. Also drop the deleted camera's persisted overrides via a new clear_camera so a camera later added under the same name does not inherit them.
