feat: Add festive visual effects (#2252)

<!-- CURSOR_SUMMARY -->
> [!NOTE]
> Introduces an effects system (fireworks, ghost, hearts, shamrocks,
snow), a new `effect` action, and optional date-based loading effects,
integrated into the card with docs, schema, editor, and tests.
> 
> - **Effects System**:
> - Add `EffectsController` and `advanced-camera-card-effects` host with
lazy-loaded effect modules (`fireworks`, `ghost`, `hearts`, `shamrocks`,
`snow`).
> - New base effect component with fade-in/out; SCSS and z-index
updates.
> - **Actions**:
> - New custom action `advanced_camera_card_action: effect` with
`effect_action` (`start`|`stop`|`toggle`).
>   - Wire into `ActionFactory` and add `EffectAction` executor.
> - **Card Integration**:
> - Mount effects host in `advanced-camera-card` and expose
`getEffectsControllerAPI()` via `CardController`.
> - Loading component can trigger date-based effects (e.g., New Year
fireworks) when enabled.
> - **Configuration & Editor**:
> - Add `performance.features.card_loading_effects` (default `true`)
alongside `card_loading_indicator`.
> - Update schemas, defaults, low-performance profile (disables
effects), and editor toggles.
> - **Docs & Examples**:
>   - Document `effect` action parameters and add menu example.
>   - Update performance docs with new option.
> - **Localization & Tests**:
>   - Update i18n strings for new performance option.
> - Add comprehensive tests for effects controller, action, factory,
config defaults/profiles, and utilities.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
cffd4304fe3bd22340316f9cec53e341379b1756. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

tests/card-controller/controller.test.ts

@@ -32,6 +32,8 @@ import { AdvancedCameraCardEditor } from '../../src/editor';
 import { DeviceRegistryManager } from '../../src/ha/registry/device';
 import { EntityRegistryManagerLive } from '../../src/ha/registry/entity';
 import { ResolvedMediaCache } from '../../src/ha/resolved-media';
+import { EffectsControllerAPI } from '../../src/types';
+import { mock } from 'vitest-mock-extended';
 
 vi.mock('../../src/camera-manager/manager');
 vi.mock('../../src/card-controller/actions/actions-manager');
@@ -70,7 +72,7 @@ const createCardElement = (): CardHTMLElement => {
 };
 
 const createController = (): CardController => {
-  return new CardController(createCardElement(), vi.fn(), vi.fn());
+  return new CardController(createCardElement(), vi.fn(), vi.fn(), vi.fn());
 };
 
 // @vitest-environment jsdom
@@ -83,15 +85,23 @@ describe('CardController', () => {
     const element = createCardElement();
     const scrollCallback = vi.fn();
     const menuToggleCallback = vi.fn();
+    const effectsControllerAPI = mock<EffectsControllerAPI>();
+    const effectsControllerAPICallback = vi.fn().mockReturnValue(effectsControllerAPI);
 
-    const manager = new CardController(element, scrollCallback, menuToggleCallback);
+    const controller = new CardController(
+      element,
+      scrollCallback,
+      menuToggleCallback,
+      effectsControllerAPICallback,
+    );
 
     expect(CardElementManager).toBeCalledWith(
-      manager,
+      controller,
       element,
       scrollCallback,
       menuToggleCallback,
     );
+    expect(controller.getEffectsControllerAPI()).toBe(effectsControllerAPI);
   });
 
   describe('accessors', () => {