Add ChatGPT share debug helper

Dockerfile

@@ -25,6 +25,7 @@ RUN apt-get update \
 COPY --from=build /app/node_modules ./node_modules
 COPY --from=build /app/dist ./dist
 COPY --from=build /app/dist-client ./dist-client
+COPY scripts ./scripts
 COPY package.json ./
 RUN ./node_modules/.bin/playwright install --with-deps --only-shell chromium \
   && npm cache clean --force \

scripts/debug-chatgpt-share.mjs

@@ -0,0 +1,87 @@
+import { chromium } from "playwright";
+
+const sourceUrl = process.argv[2];
+const holdMs = Number(process.env.DEBUG_HOLD_MS || "900000");
+const port = Number(process.env.DEBUG_PORT || "9222");
+
+if (!sourceUrl) {
+  console.error("usage: node scripts/debug-chatgpt-share.mjs <chatgpt-share-url>");
+  process.exit(2);
+}
+
+let browser;
+let context;
+
+function now() {
+  return new Date().toISOString();
+}
+
+async function close() {
+  if (context) await context.close().catch(() => undefined);
+  if (browser) await browser.close().catch(() => undefined);
+}
+
+process.on("SIGINT", () => close().finally(() => process.exit(130)));
+process.on("SIGTERM", () => close().finally(() => process.exit(143)));
+
+browser = await chromium.launch({
+  headless: true,
+  args: [
+    `--remote-debugging-address=0.0.0.0`,
+    `--remote-debugging-port=${port}`
+  ]
+});
+
+context = await browser.newContext({
+  viewport: { width: 1360, height: 900 },
+  deviceScaleFactor: 1,
+  locale: "en-US"
+});
+
+const page = await context.newPage();
+page.setDefaultTimeout(30_000);
+
+console.log(`[${now()}] Chromium DevTools port: ${port}`);
+console.log(`[${now()}] Opening ${sourceUrl}`);
+
+await page.goto(sourceUrl, { waitUntil: "domcontentloaded", timeout: 45_000 });
+await page.waitForLoadState("networkidle", { timeout: 20_000 }).catch(() => undefined);
+await page.waitForTimeout(3000);
+
+const summary = await page.evaluate(() => {
+  const selectors = [
+    "[data-message-author-role]",
+    "[data-message-id]",
+    "[data-testid]",
+    "main article",
+    "main [role=listitem]",
+    "main .markdown",
+    "main [class*=markdown]",
+    "script[type='application/json']",
+    "script#__NEXT_DATA__"
+  ];
+
+  const counts = Object.fromEntries(selectors.map((selector) => [selector, document.querySelectorAll(selector).length]));
+  const title = document.querySelector("h1")?.textContent?.trim() || document.title;
+  const bodySample = (document.body.textContent || "").replace(/\s+/g, " ").trim().slice(0, 600);
+  const testIds = Array.from(document.querySelectorAll("[data-testid]"))
+    .map((element) => element.getAttribute("data-testid"))
+    .filter(Boolean)
+    .slice(0, 80);
+
+  return {
+    href: location.href,
+    title,
+    counts,
+    testIds,
+    bodySample
+  };
+});
+
+console.log(JSON.stringify(summary, null, 2));
+console.log(`[${now()}] Holding browser for ${Math.round(holdMs / 1000)}s.`);
+console.log(`[${now()}] Tunnel with: ssh -L ${port}:127.0.0.1:${port} titan-reverse`);
+console.log(`[${now()}] Then open: chrome://inspect/#devices`);
+
+await new Promise((resolve) => setTimeout(resolve, holdMs));
+await close();