const f = document.querySelector('iframe.editframe');
const w = f.contentWindow;
const out={};
out.keys = Object.keys(w).filter(k=>!/^(webkit|on|chrome)/.test(k)).slice(0,80);
try { const b = w.MSG_BUS_PCB; out.busType = Object.prototype.toString.call(b);
  out.busKeys = b ? Object.keys(b).slice(0,30) : null;
  if (b) { const proto = Object.getPrototypeOf(b); out.busProto = Object.getOwnPropertyNames(proto).slice(0,30); }
} catch(e){ out.busErr=String(e).slice(0,120); }
out.scripts = Array.from(w.document.querySelectorAll('script')).map(s=>String(s.src).slice(0,140)).filter(Boolean);
return out;