fix(test): clean perf summary cli errors

scripts/openclaw-performance-source-summary.mjs

@@ -669,7 +669,7 @@ function isCliEntry() {
 if (isCliEntry()) {
   main().catch(
     /** @param {unknown} error */ (error) => {
-      console.error(error instanceof Error ? error.stack : String(error));
+      console.error(error instanceof Error ? error.message : String(error));
       process.exitCode = 1;
     },
   );

test/scripts/openclaw-performance-source-summary.test.ts

@@ -1,3 +1,4 @@
+import { spawnSync } from "node:child_process";
 import fs from "node:fs";
 import os from "node:os";
 import path from "node:path";
@@ -17,6 +18,18 @@ function writeJson(filePath: string, value: unknown) {
   fs.writeFileSync(filePath, JSON.stringify(value), "utf8");
 }
 
+function runCli(...args: string[]) {
+  return spawnSync(process.execPath, ["scripts/openclaw-performance-source-summary.mjs", ...args], {
+    cwd: path.resolve("."),
+    encoding: "utf8",
+  });
+}
+
+function expectNoNodeStack(stderr: string) {
+  expect(stderr).not.toContain("Node.js");
+  expect(stderr).not.toContain("\n    at ");
+}
+
 function writeSourceFixture(sourceDir: string) {
   writeJson(path.join(sourceDir, "gateway-cpu", "gateway-startup-bench.json"), {
     results: [
@@ -126,6 +139,20 @@ describe("parseArgs", () => {
       );
     }
   });
+
+  it("reports CLI argument errors without a Node stack trace", () => {
+    const missingSource = runCli();
+    expect(missingSource.status).toBe(1);
+    expect(missingSource.stdout).toBe("");
+    expect(missingSource.stderr.trim()).toBe("--source-dir is required");
+    expectNoNodeStack(missingSource.stderr);
+
+    const unknownArg = runCli("--wat");
+    expect(unknownArg.status).toBe(1);
+    expect(unknownArg.stdout).toBe("");
+    expect(unknownArg.stderr.trim()).toBe("Unknown argument: --wat");
+    expectNoNodeStack(unknownArg.stderr);
+  });
 });
 
 describe("buildMarkdown", () => {