Refactor recordings retention to be based on review items (#13355)

* Refactor recordings config to be based off of review items

* Update object processing logic for when an event is created

* Migrate to deciding recording retention based on review items

* Refactor recording expiration to be based off of review items

* Remove remainder of recording events access

* Handle migration automatically

* Update version and cleanup

* Update docs

* Clarify docs

* Cleanup

* Target camera config

* Safely access all fields

frigate/record/record.py

@@ -11,7 +11,7 @@ from playhouse.sqliteq import SqliteQueueDatabase
 from setproctitle import setproctitle
 
 from frigate.config import FrigateConfig
-from frigate.models import Event, Recordings
+from frigate.models import Recordings, ReviewSegment
 from frigate.record.maintainer import RecordingMaintainer
 from frigate.util.services import listen
 
@@ -41,7 +41,7 @@ def manage_recordings(config: FrigateConfig) -> None:
         },
         timeout=max(60, 10 * len([c for c in config.cameras.values() if c.enabled])),
     )
-    models = [Event, Recordings]
+    models = [ReviewSegment, Recordings]
     db.bind(models)
 
     maintainer = RecordingMaintainer(