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

frigate/app.py

@@ -18,6 +18,10 @@ from frigate.api.auth import hash_password
 from frigate.api.fastapi_app import create_fastapi_app
 from frigate.comms.config_updater import ConfigPublisher
 from frigate.comms.dispatcher import Communicator, Dispatcher
+from frigate.comms.event_metadata_updater import (
+    EventMetadataPublisher,
+    EventMetadataTypeEnum,
+)
 from frigate.comms.inter_process import InterProcessCommunicator
 from frigate.comms.mqtt import MqttClient
 from frigate.comms.webpush import WebPushClient
@@ -332,6 +336,9 @@ class FrigateApp:
     def init_inter_process_communicator(self) -> None:
         self.inter_process_communicator = InterProcessCommunicator()
         self.inter_config_updater = ConfigPublisher()
+        self.event_metadata_updater = EventMetadataPublisher(
+            EventMetadataTypeEnum.regenerate_description
+        )
         self.inter_zmq_proxy = ZmqProxy()
 
     def init_onvif(self) -> None:
@@ -656,6 +663,7 @@ class FrigateApp:
                     self.onvif_controller,
                     self.external_event_processor,
                     self.stats_emitter,
+                    self.event_metadata_updater,
                 ),
                 host="127.0.0.1",
                 port=5001,
@@ -743,6 +751,7 @@ class FrigateApp:
         # Stop Communicators
         self.inter_process_communicator.stop()
         self.inter_config_updater.stop()
+        self.event_metadata_updater.stop()
         self.inter_zmq_proxy.stop()
 
         while len(self.detection_shms) > 0: