Regenerate genai tracked object descriptions (#13930)

* add genai to frigateconfig

* add regenerate button if genai is enabled

* add endpoint and new zmq pub/sub model

* move publisher to app

* dont override

* logging

* debug timeouts

* clean up

* clean up

* allow saving of empty description

* ensure descriptions can be empty

* update search detail when results change

* revalidate explore page on focus

* global mutate hook

* description websocket hook and dispatcher

* revalidation and mutation

* fix merge conflicts

* update tests

* fix merge conflicts

* fix response message

* fix response message

* fix fastapi

* fix test

* remove log

* json content

* fix content response

* more json content fixes

* another one

web/src/api/ws.tsx

@@ -321,3 +321,10 @@ export function useImproveContrast(camera: string): {
   );
   return { payload: payload as ToggleableSetting, send };
 }
+
+export function useEventUpdate(): { payload: string } {
+  const {
+    value: { payload },
+  } = useWs("event_update", "");
+  return useDeepMemo(JSON.parse(payload as string));
+}