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/engine-factory.ts

@@ -71,6 +71,15 @@ export class CameraManagerEngineFactory {
           new CameraManagerRequestCache(),
           options.eventCallback,
         );
+        break;
+      case Engine.TPLink:
+        const { TPLinkCameraManagerEngine } = await import('./tplink/engine-tplink');
+        cameraManagerEngine = new TPLinkCameraManagerEngine(
+          this._entityRegistryManager,
+          options.stateWatcher,
+          options.eventCallback,
+        );
+        break;
     }
     return cameraManagerEngine;
   }
@@ -88,6 +97,8 @@ export class CameraManagerEngineFactory {
       engine = Engine.Generic;
     } else if (cameraConfig.engine === 'reolink') {
       engine = Engine.Reolink;
+    } else if (cameraConfig.engine === 'tplink') {
+      engine = Engine.TPLink;
     } else {
       const cameraEntity = getCameraEntityFromConfig(cameraConfig);
 
@@ -116,6 +127,9 @@ export class CameraManagerEngineFactory {
           case 'reolink':
             engine = Engine.Reolink;
             break;
+          case 'tplink':
+            engine = Engine.TPLink;
+            break;
           default:
             engine = Engine.Generic;
         }