新增首页与画布工具栏的游戏场景入口和专用生成表单
新增结构化场景请求契约与后端场景提示词组装
复用图片生成任务的计费、队列、资源入库和画布回写
接入多参考图、画幅选项、预设画风及自定义画风
补充场景链路技术方案和前后端定向测试

@@ -2035,0 +2056,4 @@
+            }),
+            onWalletBalanceMayHaveChanged,
+          );
+          if (

@@ -2035,0 +2078,4 @@
+            }
+            return;
+          }
+          addGeneratedResultLayer(generated, {

@@ -900,0 +902,4 @@
+export type EditorSceneGenerationInput = EditorSceneGenerationRequest;
+
+export async function generateEditorScene(input: EditorSceneGenerationInput) {
+  assertStableEditorMediaReferences(input.referenceImageSrcs, '场景参考图');

@@ -900,0 +928,4 @@
+    '生成游戏场景失败',
+    {
+      timeoutMs: 1_200_000,
+      retry: EDITOR_REQUEST_RETRY_OPTIONS,

@@ -1681,6 +1824,22 @@ pub async fn generate_editor_image(
     payload: Result<Json<EditorImageGenerationRequest>, JsonRejection>,
 ) -> Result<Json<Value>, AppError> {
     let Json(payload) = parse_editor_generation_json_payload(payload)?;
+    if payload

@@ -231,3 +265,2 @@
 }: ImageGenerationSubmissionOptions): ImageGenerationSubmissionPlan {
-  const normalizedPrompt =
-    dialog.prompt.trim() || getDialogDefaultPrompt(dialog.mode);
+  const normalizedPrompt = resolveImageGenerationDialogPrompt(dialog);

@@ -1783,3 +1781,1 @@
-            : dialog.mode === 'audio-background-music'
-              ? '游戏背景音乐'
-              : 'AI 生成图片');
+      const normalizedPrompt = resolveImageGenerationDialogPrompt(dialog);

@@ -16796,3 +16844,211 @@ button {
   background: #f8fafc;
   box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
 }
+.image-canvas-editor__scene-custom-style {