Semantic Search Triggers (#18969)

* semantic trigger test

* database and model

* config

* embeddings maintainer and trigger post-processor

* api to create, edit, delete triggers

* frontend and i18n keys

* use thumbnail and description for trigger types

* image picker tweaks

* initial sync

* thumbnail file management

* clean up logs and use saved thumbnail on frontend

* publish mqtt messages

* webpush changes to enable trigger notifications

* add enabled switch

* add triggers from explore

* renaming and deletion fixes

* fix typing

* UI updates and add last triggering event time and link

* log exception instead of return in endpoint

* highlight entry in UI when triggered

* save and delete thumbnails directly

* remove alert action for now and add descriptions

* tweaks

* clean up

* fix types

* docs

* docs tweaks

* docs

* reuse enum

frigate/config/camera/updater.py

@@ -23,6 +23,7 @@ class CameraConfigUpdateEnum(str, Enum):
     record = "record"
     remove = "remove"  # for removing a camera
     review = "review"
+    semantic_search = "semantic_search"  # for semantic search triggers
     snapshots = "snapshots"
     zones = "zones"
 
@@ -106,6 +107,8 @@ class CameraConfigUpdateSubscriber:
             config.record = updated_config
         elif update_type == CameraConfigUpdateEnum.review:
             config.review = updated_config
+        elif update_type == CameraConfigUpdateEnum.semantic_search:
+            config.semantic_search = updated_config
         elif update_type == CameraConfigUpdateEnum.snapshots:
             config.snapshots = updated_config
         elif update_type == CameraConfigUpdateEnum.zones: