抓包对比工具补一批一次性脚本：拆预设、对请求、跑 A/B 与拒答抽样。

这些脚本都是我对着酒馆真实请求手工核对用的，留在仓库里方便下次重跑；跑出来的本地数据目录含接口 key，已经写进忽略规则。

tools/st-request-diff/ab-stats.mjs

@@ -0,0 +1,13 @@
+import { readFileSync } from "node:fs";
+const lines = readFileSync(process.argv[2], "utf8").trim().split("\n").filter(Boolean);
+lines.forEach((l, i) => {
+  const r = JSON.parse(l);
+  console.log(
+    "#" + (i + 1) + " " + r.at + " model=" + r.model + " prompt=" + r.promptTokens + " completion=" + r.completionTokens + " total=" + r.totalTokens + " cached=" + (r.cachedTokens ?? 0) + " 延迟=" + r.latencyMs + "ms",
+  );
+});
+const sum = (arr, k) => arr.reduce((n, r) => n + (r[k] || 0), 0);
+const half = Math.floor(lines.length / 2);
+const all = lines.map((l) => JSON.parse(l));
+console.log("\n前一半（wa-core-v1）prompt=" + sum(all.slice(0, 2), "promptTokens") + " completion=" + sum(all.slice(0, 2), "completionTokens"));
+console.log("后一半（kunlun）prompt=" + sum(all.slice(2), "promptTokens") + " completion=" + sum(all.slice(2), "completionTokens"));