/* ---- 一次性事件绑定（contactsShell 常驻 DOM → init 时绑一次；委托 contactTbody/qaTbody） ---- */
function bindContactsUI() {
  wrap.addEventListener('mousedown', graphMouseDown);
  document.addEventListener('mousemove', graphMouseMove);
  document.addEventListener('mouseup', graphMouseUp);
  wrap.addEventListener('wheel', graphWheel, { passive: false });
  edgeSvg.addEventListener('click', edgeDeleteClick);
  canvasInner.addEventListener('click', cardPhoneClick);
  canvasInner.addEventListener('mouseover', cardBubbleOver);
  canvasInner.addEventListener('mouseout', e => { if (e.target.closest('.gcard')) hideBubble(); });
  $('contactTbody').addEventListener('click', function (e) {
    const op = e.target.closest('[data-op]');
    if (!op) return;
    if (op.dataset.op === 'reveal') { revealOne(op.dataset.id).then(renderContactsAll); return; }
    if (op.dataset.op === 'undo') { undoRow(op.dataset.id); return; }
    if (op.dataset.op === 'edit') { dlgContact(op.dataset.id); return; }   // 旧 contact/edit 弹窗保留演示
    if (op.dataset.op === 'check') { dlgCheckPhone(op.dataset.phone); return; }
    if (op.dataset.op === 'del') { delContact(op.dataset.id); return; }
  });
  $('contactTbody').addEventListener('change', function (e) {
    if (e.target.classList.contains('row-chk')) {
      const k = e.target.dataset.id;
      if (e.target.checked) C.checked[k] = true; else delete C.checked[k];
      renderContactsList();
      return;
    }
    if (e.target.dataset.f && C.editing) applyCellEdit(e.target);
  });
  $('contactTbody').addEventListener('input', function (e) {
    if (e.target.dataset.f && C.editing) applyCellEdit(e.target, true);
  });
  $('qaTbody').addEventListener('change', qaTableChange);
  $('qaTbody').addEventListener('input', qaTableInput);
}