实现 SFX V2 T1 契约与提示词基础

统一前后端 SFX Prompt Unicode canonicalization、字符计数和 2048 边界
固化 52 个音效预设、追加规则及跨语言测试向量
演进共享音频请求响应、duration、Loop 和 V2 metadata 契约
增加 External model 输入矩阵纯函数并保持正式接线归属 T5
补齐前端提交、读取、深拷贝与请求边界回归测试
更新共享计划并标记 T1 完成且当前不可发布

src/components/image-editor/ImageCanvasEditorModel.test.ts

@@ -13,6 +13,7 @@ import {
   DEFAULT_CANVAS_BACKGROUND_COLOR,
   dropDeadInlineGenerationPlaceholders,
   formatCanvasDisplayScalePercent,
+  generationInputsOrNull,
   hydrateCanvasGenerationDialog,
   hydrateLayer,
   INLINE_GENERATION_PLACEHOLDER_LIVE_WINDOW_MS,
@@ -971,6 +972,47 @@ describe('ImageCanvasEditorModel', () => {
     expect(hydrated).not.toHaveProperty('durationSeconds');
   });
 
+  it('keeps only valid authoritative SFX V2 metadata in generation inputs', () => {
+    const soundEffect = {
+      schemaVersion: 2 as const,
+      userPrompt: '金币落地，轻快可爱',
+      actualPrompt: 'A bright, cute coin landing chime',
+      model: 'eleven_text_to_sound_v2' as const,
+      durationMode: 'manual' as const,
+      requestedDurationSeconds: 5,
+      actualDurationSeconds: 5.12,
+      loop: false,
+    };
+    expect(
+      generationInputsOrNull({ fields: [], references: [], soundEffect }),
+    ).toEqual({ fields: [], references: [], soundEffect });
+
+    for (const invalidSoundEffect of [
+      { ...soundEffect, schemaVersion: 1 },
+      { ...soundEffect, model: 'audio1.0' },
+      { ...soundEffect, userPrompt: ' 金币落地' },
+      { ...soundEffect, actualDurationSeconds: 600.1 },
+      {
+        ...soundEffect,
+        durationMode: 'auto',
+        requestedDurationSeconds: 5,
+      },
+      {
+        ...soundEffect,
+        durationMode: 'manual',
+        requestedDurationSeconds: null,
+      },
+    ]) {
+      expect(
+        generationInputsOrNull({
+          fields: [{ title: '用户描述', value: '金币落地' }],
+          references: [],
+          soundEffect: invalidSoundEffect,
+        }),
+      ).toBeNull();
+    }
+  });
+
   it('hydrates character animation sequence fields from the project resource', () => {
     const layer: CanvasLayer = {
       id: 'layer-action',