Support headless shell debug launch

scripts/debug-chatgpt-share.mjs

@@ -1,5 +1,6 @@
 import { chromium } from "playwright";
 import { spawn } from "node:child_process";
+import { existsSync, readdirSync } from "node:fs";
 import { mkdtemp, rm } from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
@@ -22,6 +23,22 @@ function now() {
   return new Date().toISOString();
 }
 
+function findChromiumExecutable() {
+  const preferred = process.env.DEBUG_CHROMIUM_EXECUTABLE || chromium.executablePath();
+  if (existsSync(preferred)) return preferred;
+
+  const browsersRoot = process.env.PLAYWRIGHT_BROWSERS_PATH || path.dirname(path.dirname(preferred));
+  const headlessShell = readdirSync(browsersRoot)
+    .filter((entry) => entry.startsWith("chromium_headless_shell-"))
+    .sort()
+    .reverse()
+    .map((entry) => path.join(browsersRoot, entry, "chrome-headless-shell-linux64", "chrome-headless-shell"))
+    .find((candidate) => existsSync(candidate));
+
+  if (headlessShell) return headlessShell;
+  throw new Error(`No Chromium executable found. Tried ${preferred} and ${browsersRoot}/chromium_headless_shell-*.`);
+}
+
 async function close() {
   if (context) await context.close().catch(() => undefined);
   if (browser) await browser.close().catch(() => undefined);
@@ -33,7 +50,8 @@ process.on("SIGINT", () => close().finally(() => process.exit(130)));
 process.on("SIGTERM", () => close().finally(() => process.exit(143)));
 
 userDataDir = await mkdtemp(path.join(os.tmpdir(), "aishare-debug-"));
-const executablePath = chromium.executablePath();
+const executablePath = findChromiumExecutable();
+console.log(`[${now()}] Chromium executable: ${executablePath}`);
 browserProcess = spawn(executablePath, [
   "--headless",
   "--no-sandbox",