머지 완료 브랜치 정리

<div class="demo files"><div class="heading"><strong>MERGED BRANCH CLEANUP</strong><span class="live">LIVE</span></div><div class="scene"><div class="diagram branch-cleanup">
      <div class="cleanup-row"><b>topic-a</b><span>tip in upstream</span><span class="box cue clean-yes" data-cue="0">delete candidate</span></div>
      <div class="cleanup-row"><b>topic-b</b><span>unmerged tip</span><span class="box cue clean-no" data-cue="1">keep</span></div>
      <div class="cleanup-row"><b>topic-c</b><span>active worktree</span><span class="box cue clean-no" data-cue="2">skip</span></div>
      <div class="cleanup-preview cue" data-cue="3">dry run → review candidates first</div></div></div><div class="caption" id="caption"></div><div class="ticks"><i></i><i></i><i></i><i></i></div></div>

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const moments=[{"focus":0,"label":"Merged tip is a candidate"},{"focus":1,"label":"Unmerged tip stays"},{"focus":2,"label":"Active worktree branch is skipped"},{"focus":3,"label":"Review dry-run output first"}];let n=0;const cues=[...document.querySelectorAll('[data-cue]')],ticks=[...document.querySelectorAll('.ticks i')],caption=document.getElementById('caption'),dynamic=document.querySelector('.dynamic');function show(){const m=moments[n];cues.forEach(el=>el.classList.toggle('active',el.dataset.cue.split(',').includes(String(m.focus))));if(dynamic&&m.cells)dynamic.textContent=m.cells[m.cells.length-1];ticks.forEach((el,i)=>el.classList.toggle('active',i===n));caption.textContent=m.label;n=(n+1)%moments.length}show();let timer=setInterval(show,1050);document.querySelector('.demo').addEventListener('pointerdown',()=>{clearInterval(timer);show()})