Metadata Timeline (#6194)

* Create timeline table

* Fix indexes

* Add other fields

* Adjust schema to be less descriptive

* Handle timeline queue from tracked object data

* Setup timeline queue in events

* Add source id for index

* Add other fields

* Fixes

* Formatting

* Store better data

* Add api with filtering

* Setup basic UI for timeline in events

* Cleanups

* Add recordings snapshot url

* Start working on timeline ui

* Add tooltip with info

* Improve icons

* Fix start time with clip

* Move player logic back to clips

* Make box in timeline relative coordinates

* Make region relative

* Get box overlay working

* Remove overlay when playing again

* Add disclaimer when selecting overlay points

* Add docs for new apis

* Fix mobile

* Fix docs

* Change color of bottom center box

* Fix vscode formatting

docs/docs/integrations/api.md

@@ -168,6 +168,16 @@ Events from the database. Accepts the following query string parameters:
 | `include_thumbnails` | int  | Include thumbnails in the response (0 or 1)   |
 | `in_progress`        | int  | Limit to events in progress (0 or 1)          |
 
+### `GET /api/timeline`
+
+Timeline of key moments of an event(s) from the database. Accepts the following query string parameters:
+
+| param                | Type | Description                                   |
+| -------------------- | ---- | --------------------------------------------- |
+| `camera`             | int  | Name of camera                                |
+| `source_id`          | str  | ID of tracked object                          |
+| `limit`              | int  | Limit the number of events returned           |
+
 ### `GET /api/events/summary`
 
 Returns summary data for events in the database. Used by the Home Assistant integration.
@@ -233,6 +243,10 @@ Accepts the following query string parameters, but they are only applied when an
 
 Returns the snapshot image from the latest event for the given camera and label combo. Using `any` as the label will return the latest thumbnail regardless of type.
 
+### `GET /api/<camera_name>/recording/<frame_time>/snapshot.png`
+
+Returns the snapshot image from the specific point in that cameras recordings.
+
 ### `GET /clips/<camera>-<id>.jpg`
 
 JPG snapshot for the given camera and event id.