新增普通文案优化接口

src/app/api/copy/renwei-optimize/route.ts

@@ -0,0 +1,39 @@
+import { NextResponse } from "next/server";
+import { z } from "zod";
+
+import { requireApiAccess } from "../../../../lib/api/auth";
+import { copyOptimizationRequestSchema } from "../../../../lib/domain/validation";
+import { LlmValidationError } from "../../../../lib/llm/client";
+import { optimizeRenweiCopy } from "../../../../lib/workflow/renwei-copy-optimizer";
+
+export async function POST(request: Request) {
+  const access = requireApiAccess(request);
+  if (!access.ok) {
+    return access.response;
+  }
+
+  try {
+    const payload = copyOptimizationRequestSchema.parse(await request.json());
+    const result = await optimizeRenweiCopy(payload);
+    return NextResponse.json({ result });
+  } catch (error) {
+    return jsonError(error, getErrorStatus(error));
+  }
+}
+
+function jsonError(error: unknown, status: number) {
+  const message =
+    error instanceof z.ZodError
+      ? "请输入需要优化的文案"
+      : error instanceof Error
+        ? error.message
+        : "文案优化失败";
+
+  return NextResponse.json({ error: message }, { status });
+}
+
+function getErrorStatus(error: unknown) {
+  if (error instanceof LlmValidationError) return 502;
+  if (error instanceof Error && /^LLM\b|provider/i.test(error.message)) return 502;
+  return 400;
+}