修复画布生成配方恢复边界

兼容生成配方未来字段与历史完美像素快照
补齐参数回退、旧版恢复告警和本地参考图上传
收紧生成任务幂等比较与裁扩来源归属
同步画布编辑器设计文档和回归测试

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

@@ -591,7 +591,10 @@ describe('ImageCanvasGenerationModel', () => {
       ],
       references: [],
     });
-    expect(alias).toMatchObject({ ok: true, warnings: [] });
+    expect(alias).toMatchObject({
+      ok: true,
+      warnings: [expect.objectContaining({ fieldIds: ['style'] })],
+    });
     expect(
       alias.ok
         ? alias.inputs.fields.find((field) => field.id === 'model')?.value
@@ -706,6 +709,50 @@ describe('ImageCanvasGenerationModel', () => {
     );
   });
 
+  it('materializes and warns about missing action parameters', () => {
+    const decoded = decodeCanvasGenerationInputs({
+      version: 2,
+      action: 'video.generate',
+      fields: [{ id: 'prompt', title: '视频描述', value: '追逐镜头' }],
+      references: [],
+    });
+
+    expect(decoded).toMatchObject({
+      ok: true,
+      inputs: {
+        fields: expect.arrayContaining([
+          expect.objectContaining({ id: 'model', value: DEFAULT_VIDEO_MODEL }),
+          expect.objectContaining({ id: 'durationSeconds', value: 4 }),
+        ]),
+      },
+      warnings: expect.arrayContaining([
+        expect.objectContaining({ fieldIds: ['model'] }),
+        expect.objectContaining({ fieldIds: ['durationSeconds'] }),
+      ]),
+    });
+
+    const animation = decodeCanvasGenerationInputs({
+      version: 2,
+      action: 'character-animation.generate',
+      fields: [{ id: 'prompt', title: '动作描述', value: '挥手' }],
+      references: [],
+    });
+    expect(animation).toMatchObject({
+      ok: true,
+      inputs: {
+        fields: expect.arrayContaining([
+          expect.objectContaining({ id: 'frameCount', value: 32 }),
+          expect.objectContaining({ id: 'durationSeconds', value: 4 }),
+        ]),
+      },
+      warnings: expect.arrayContaining([
+        expect.objectContaining({
+          fieldIds: ['frameCount', 'durationSeconds'],
+        }),
+      ]),
+    });
+  });
+
   it('falls invalid sound and character animation parameters back to complete defaults', () => {
     const sound = decodeCanvasGenerationInputs({
       version: 2,