fix: keep local test models out of production

app/(chat)/api/models/route.ts

@@ -72,12 +72,7 @@ function isWorkflowImageGenerationModel(model: {
 // 获取前端可用的 AI 模型列表（需要登录但不需要管理员权限）
 export async function GET(request: Request) {
   try {
-    const requestHost = new URL(request.url).hostname;
-    const isLocalCanvasE2E =
-      process.env.CANVAS_E2E_LOCAL === "true" ||
-      requestHost === "127.0.0.1" ||
-      requestHost === "localhost" ||
-      requestHost === "::1";
+    const isLocalCanvasE2E = process.env.CANVAS_E2E_LOCAL === "true";
 
     if (isLocalCanvasE2E) {
       const models = [