角色动画面板新增可选参数入口开关：AGC 固定档位不再渲染假控件

- 新增可选 prop showParameters（默认 true）：为 false 时不渲染「比例 / 时长 / 清晰度」
  入口按钮与对应浮层菜单，默认值等于网页端美术画布今天的渲染，行为逐字不变。
- 关闭理由写进注释：宿主若不能把这三个值送进请求，渲染出来就是点了不生效的假控件。
- 单独成一个提交，便于共享面板被其它改动覆盖时单独摘取或回退。

src/components/image-editor/ImageCanvasCharacterAnimationPanelView.tsx

@@ -42,6 +42,13 @@ type ImageCanvasCharacterAnimationPanelViewProps = {
   >;
   onUpdateDuration: (frameCountValue: string) => void;
   onSubmit: () => void;
+  /**
+   * 比例 / 时长 / 清晰度入口是否渲染，默认 `true`，与美术画布一致。
+   *
+   * 传 `false` 的宿主必须自己说清这三个值由谁决定：它们不在该宿主的提交载荷里时，
+   * 渲染出来就是点了不生效的假控件（改了 1080p 实际仍按固定档出图）。
+   */
+  showParameters?: boolean;
 };
 
 function resetFailedPanelStatus<
@@ -126,6 +133,7 @@ export function ImageCanvasCharacterAnimationPanelView({
   setCharacterAnimationPanel,
   onUpdateDuration,
   onSubmit,
+  showParameters = true,
 }: ImageCanvasCharacterAnimationPanelViewProps) {
   const [isParameterMenuOpen, setIsParameterMenuOpen] = useState(false);
   const parameterButtonRef = useRef<HTMLButtonElement | null>(null);
@@ -220,19 +228,21 @@ export function ImageCanvasCharacterAnimationPanelView({
           ))}
         </div>
         <div className="image-canvas-editor__character-animation-footer">
-          <div className="image-canvas-editor__option-popover-anchor image-canvas-editor__option-popover-anchor--dimensions">
-            <PlatformInlineOptionButton
-              ref={parameterButtonRef}
-              className="image-canvas-editor__option-cluster image-canvas-editor__option-cluster--dimensions"
-              aria-label={`动画参数 ${ratioLabel} · ${panel.durationSeconds}秒 · ${panel.resolution}`}
-              aria-expanded={isParameterMenuOpen}
-              disabled={isGenerating}
-              trailingIcon={<ChevronDown className="h-3 w-3" />}
-              onClick={() => setIsParameterMenuOpen((open) => !open)}
-            >
-              {ratioLabel} · {panel.durationSeconds}秒 · {panel.resolution}
-            </PlatformInlineOptionButton>
-          </div>
+          {showParameters ? (
+            <div className="image-canvas-editor__option-popover-anchor image-canvas-editor__option-popover-anchor--dimensions">
+              <PlatformInlineOptionButton
+                ref={parameterButtonRef}
+                className="image-canvas-editor__option-cluster image-canvas-editor__option-cluster--dimensions"
+                aria-label={`动画参数 ${ratioLabel} · ${panel.durationSeconds}秒 · ${panel.resolution}`}
+                aria-expanded={isParameterMenuOpen}
+                disabled={isGenerating}
+                trailingIcon={<ChevronDown className="h-3 w-3" />}
+                onClick={() => setIsParameterMenuOpen((open) => !open)}
+              >
+                {ratioLabel} · {panel.durationSeconds}秒 · {panel.resolution}
+              </PlatformInlineOptionButton>
+            </div>
+          ) : null}
           <PlatformActionButton
             type="button"
             tone="secondary"
@@ -277,7 +287,7 @@ export function ImageCanvasCharacterAnimationPanelView({
           </PlatformStatusMessage>
         ) : null}
       </div>
-      {isParameterMenuOpen
+      {showParameters && isParameterMenuOpen
         ? renderPanelPortal(
             <PlatformFloatingMenu
               className="image-canvas-editor__option-popover image-canvas-editor__portal-menu"