新增图片生成像素艺术后处理

新增确定性像素网格规整模块并保留第三方 MIT 许可证。

为普通图片、角色和图标图集接入像素艺术选项、并发预算和失败降级。

同步前端交互、请求契约、OpenAPI、项目文档与测试。

src/services/image-editor/editorProjectClient.ts

@@ -184,6 +184,8 @@ export type EditorAssetLibrarySnapshot = {
   assets: EditorAssetSnapshot[];
 };
 
+export type EditorImageGenerationStyle = 'none' | 'pixelArt';
+
 export type EditorImageGenerationInput = {
   prompt: string;
   size?: string;
@@ -196,6 +198,7 @@ export type EditorImageGenerationInput = {
   model?: string;
   screenColor?: string;
   segModel?: string;
+  style?: EditorImageGenerationStyle;
   aspectRatio?: string;
   imageSize?: string;
   referenceImageSrcs?: string[];
@@ -228,6 +231,7 @@ export type EditorIconSpritesheetGenerationInput = {
   model?: string;
   screenColor?: string;
   segModel?: string;
+  style?: EditorImageGenerationStyle;
   aspectRatio?: string;
   imageSize?: string;
   projectId?: string | null;
@@ -920,6 +924,7 @@ export async function generateEditorImage(input: EditorImageGenerationInput) {
       ...(input.model ? { model: input.model } : {}),
       ...(input.screenColor ? { screenColor: input.screenColor } : {}),
       ...(input.segModel ? { segModel: input.segModel } : {}),
+      ...(input.style ? { style: input.style } : {}),
       ...(input.aspectRatio ? { aspectRatio: input.aspectRatio } : {}),
       ...(input.imageSize ? { imageSize: input.imageSize } : {}),
       ...(input.referenceImageSrcs?.length
@@ -966,6 +971,7 @@ export async function generateEditorIconSpritesheet(
       model: input.model?.trim() || EDITOR_IMAGE_MODEL_NANOBANANA2,
       ...(input.screenColor ? { screenColor: input.screenColor } : {}),
       ...(input.segModel ? { segModel: input.segModel } : {}),
+      ...(input.style ? { style: input.style } : {}),
       ...(input.aspectRatio ? { aspectRatio: input.aspectRatio } : {}),
       ...(input.imageSize ? { imageSize: input.imageSize } : {}),
       ...(input.projectId ? { projectId: input.projectId } : {}),