增加2.5模型调用

tests/image-templates.test.ts

@@ -104,6 +104,22 @@ describe("image templates", () => {
     }).settings).toEqual({ engine: "seedream", size: "1.5K", outputFormat: "jpeg", optimizeMode: "fast" });
   });
 
+  it("keeps an EvoLink model in a template without leaking it to another engine", () => {
+    const base = { name: "模型模板", prompt: "生成商品图" };
+    expect(normalizeImageTemplateCreate({
+      ...base,
+      settings: { engine: "evolink", model: "gpt-image-2.5-sunburst", quality: "medium" }
+    }).settings).toEqual({ engine: "evolink", model: "gpt-image-2.5-sunburst", quality: "medium" });
+    expect(normalizeImageTemplateCreate({
+      ...base,
+      settings: { engine: "jimeng", model: "gpt-image-2.5-sunburst" }
+    }).settings).toEqual({ engine: "jimeng" });
+    expect(() => normalizeImageTemplateCreate({
+      ...base,
+      settings: { engine: "evolink", model: "../invalid" }
+    })).toThrow("模型 ID 格式无效");
+  });
+
   it("extracts prompt material placeholders for template upload slots", () => {
     expect(extractMaterialPlaceholders("以 @图片1 为主体，参考 @图2 的色调，再参考 @视频1 的运动感。")).toEqual([
       { token: "@图片1", type: "image", index: 1 },