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/ImageCanvasGenerationSubmissionModel.test.ts

@@ -1026,15 +1026,16 @@ describe('ImageCanvasGenerationSubmissionModel', () => {
       normalizedPrompt: '金币掉落叮当声',
       input: {
         prompt: '金币掉落叮当声',
-        model: 'audio1.0',
+        model: 'eleven_text_to_sound_v2',
         duration: 7,
+        loop: false,
       },
       result: {
         title: '游戏音效 4',
         generationInputs: {
           fields: [
             { title: 'prompt', value: '金币掉落叮当声' },
-            { title: 'model', value: 'audio1.0' },
+            { title: 'model', value: 'eleven_text_to_sound_v2' },
             { title: '时长', value: '7秒' },
           ],
           references: [],
@@ -1043,38 +1044,18 @@ describe('ImageCanvasGenerationSubmissionModel', () => {
     });
   });
 
-  it('uses the game sound effect fallback for an all-whitespace prompt', () => {
-    const plan = buildImageGenerationSubmissionPlan({
-      dialog: {
-        mode: 'audio-sound-effect',
-        prompt: ' \t\r\n ',
-        status: 'idle',
-      },
-      layers: [],
-      nextGeneratedIndex: 6,
-    });
-
-    expect(plan).toEqual({
-      kind: 'audio',
-      audioKind: 'sound-effect',
-      normalizedPrompt: '游戏音效',
-      input: {
-        prompt: '游戏音效',
-        model: 'audio1.0',
-        duration: 5,
-      },
-      result: {
-        title: '游戏音效 6',
-        generationInputs: {
-          fields: [
-            { title: 'prompt', value: '游戏音效' },
-            { title: 'model', value: 'audio1.0' },
-            { title: '时长', value: '5秒' },
-          ],
-          references: [],
+  it('rejects an all-whitespace sound effect prompt without a fallback', () => {
+    expect(() =>
+      buildImageGenerationSubmissionPlan({
+        dialog: {
+          mode: 'audio-sound-effect',
+          prompt: ' \t\r\n ',
+          status: 'idle',
         },
-      },
-    });
+        layers: [],
+        nextGeneratedIndex: 6,
+      }),
+    ).toThrow('音效描述不能为空');
   });
 
   it('builds game background music audio submission plans with instrumental fixed to true', () => {