新增LLM追踪只读接口

src/app/api/jobs/[jobId]/llm-trace/[callId]/request/route.ts

@@ -0,0 +1,17 @@
+import { requireApiAccess } from "../../../../../../../lib/api/auth";
+import {
+  noStoreResponse,
+  readTracePayload,
+} from "../../../../../../../lib/llm/trace-http";
+
+interface RouteContext {
+  params: Promise<{ jobId: string; callId: string }>;
+}
+
+export async function GET(request: Request, context: RouteContext) {
+  const access = requireApiAccess(request);
+  if (!access.ok) return noStoreResponse(access.response);
+
+  const { jobId, callId } = await context.params;
+  return readTracePayload({ jobId, callId, kind: "request" });
+}