function fmtSeconds(s){if(s==null)return"—";s=Number(s)||0;const m=Math.floor(s/60),r=s%60;return m?`${m}m ${r}s`:`${r}s`}function renderTimeline(items){const root=document.getElementById("timeline");if(!root)return;root.innerHTML=(items||[]).map(x=>`<div class="step ${x.status}"><div class="step-dot">${x.status==="done"?"✓":x.status==="failed"?"!":""}</div><div>${x.label}</div></div>`).join("")}function setLink(id,url){const el=document.getElementById(id);if(!el)return;if(url){el.href=url;el.classList.remove("disabled")}else{el.removeAttribute("href");el.classList.add("disabled")}}