feat: Add TPLink camera engine support (#2257)

* Related #2183

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Introduce `tplink` camera engine with relative PTZ via button
entities, add icons/docs support, refactor to `EntityCamera`, and extend
tests/schema/factory for auto-detection.
> 
> - **Engines**
>   - **New `tplink` engine**:
>     - Add `Engine.TPLink`, schema support (`engine: 'tplink'`).
> - Implement `TPLinkCameraManagerEngine` and `TPLinkCamera` (relative
PTZ via `button.*` entities; no presets/zoom; stop is no-op).
> - Update `engine-factory` to create/auto-detect `tplink` (platform
`tplink`).
> - **Refactor**
> - Replace `BrowseMediaCamera` with `EntityCamera`; update `motioneye`
and `reolink` cameras and `motioneye` engine type checks.
> - **UI/Icons**
> - Add `tplink.svg`; wire into `IconController`; update docs icon copy
script.
> - **Docs**
> - Add `tplink` to engine capability and live-provider matrices; new
`tplink` section incl. PTZ note; add custom icon entry.
> - **Tests**
> - Add TPLink camera/engine tests and factory tests; remove obsolete
`BrowseMediaCamera` test.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
74a688c3bd602912d63a22c3c6fa2f4b60ec14f9. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

src/camera-manager/reolink/camera.ts

@@ -6,9 +6,9 @@ import { HomeAssistant } from '../../ha/types';
 import { localize } from '../../localize/localize';
 import { PTZCapabilities, PTZMovementType } from '../../types';
 import { createSelectOptionAction } from '../../utils/action.js';
-import { BrowseMediaCamera } from '../browse-media/camera';
 import { Camera, CameraInitializationOptions } from '../camera';
 import { Capabilities } from '../capabilities';
+import { EntityCamera } from '../entity-camera';
 import { CameraInitializationError } from '../error';
 import { CameraProxyConfig } from '../types';
 import { getPTZCapabilitiesFromCameraConfig } from '../utils/ptz';
@@ -35,7 +35,7 @@ interface PTZEntities {
 }
 type PTZEntity = keyof PTZEntities;
 
-export class ReolinkCamera extends BrowseMediaCamera {
+export class ReolinkCamera extends EntityCamera {
   // The HostID identifying the camera or NVR.
   protected _reolinkHostID: string | null = null;