Diablo2D — Shadows of Tristram: complete browser ARPG

- Isometric canvas renderer (depth-sorted, FOV/fog, additive lighting)
- 3 classes x 20 skills, 4 acts x 4 floors + boss lairs, torment I-X
- Diablo-style loot: rarities, affix tiers, 14 legendaries, vendor, stash
- Rogue camp with 6 NPCs: Charsi/Akara/Kashya/Cain/Gheed/storage
- NPC quest chain (accept -> hunt -> turn in) with rewards & gating
- Procedural WebAudio SFX + generative music, EN/VI localization
- Saves, settings, waypoints, hardcore mode, PWA manifest
- 93-assertion headless suite + browser E2E via CDP

tools/cdp_run.mjs

@@ -0,0 +1,46 @@
+/* CDP runner: attach to running chrome (real time, no virtual time),
+   poll the drive page status until DONE/ERROR, then report.
+   usage: node tools/cdp_run.mjs [port] [timeoutSec] */
+const port = process.argv[2] || '9333';
+const timeoutMs = (parseInt(process.argv[3] || '120', 10)) * 1000;
+
+const targets = await (await fetch(`http://127.0.0.1:${port}/json`)).json();
+const page = targets.find(t => t.type === 'page');
+if (!page) { console.log('no page'); process.exit(1); }
+
+const ws = new WebSocket(page.webSocketDebuggerUrl);
+let id = 0;
+const pending = new Map();
+function send(method, params = {}) {
+  return new Promise((res, rej) => {
+    const mid = ++id;
+    pending.set(mid, { res, rej });
+    ws.send(JSON.stringify({ id: mid, method, params }));
+  });
+}
+ws.onmessage = (ev) => {
+  const msg = JSON.parse(ev.data);
+  if (msg.id && pending.has(msg.id)) {
+    const { res, rej } = pending.get(msg.id);
+    pending.delete(msg.id);
+    msg.error ? rej(new Error(msg.error.message)) : res(msg.result);
+  }
+};
+await new Promise(r => { ws.onopen = r; });
+
+async function evalJs(expr) {
+  const r = await send('Runtime.evaluate', { expression: expr, returnByValue: true });
+  return r.result ? r.result.value : undefined;
+}
+
+const t0 = Date.now();
+let last = '';
+while (Date.now() - t0 < timeoutMs) {
+  await new Promise(r => setTimeout(r, 2000));
+  const s = await evalJs(`(document.getElementById('status')||{}).textContent || ''`);
+  if (s !== last) { console.log('----\n' + s); last = s; }
+  if (/DONE|DRIVE_ERROR/.test(s)) break;
+}
+console.log('\n===== FINAL =====');
+console.log(await evalJs(`(document.getElementById('status')||{}).textContent || ''`));
+ws.close();