fix(a11y): expose busy scan rows as temporarily unavailable

scanner/dashboard/console.html

@@ -26,6 +26,7 @@
   input{font:inherit;padding:8px 10px;border:1px solid var(--border);border-radius:8px;min-width:280px}
   button{font:inherit;font-weight:600;padding:8px 14px;border:0;border-radius:8px;background:var(--primary);color:var(--on-primary);cursor:pointer}
   button.ghost{background:var(--surface);color:var(--primary);border:1px solid var(--border)}
+  button:disabled, button[aria-busy="true"], tr.scan[aria-busy="true"], tr.scan[aria-disabled="true"] { opacity: 0.7; pointer-events: none; }
   .card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;margin-bottom:16px}
   .stats{display:flex;gap:12px;flex-wrap:wrap}
   .stat{flex:1;min-width:130px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px}
@@ -88,6 +89,7 @@ <h1>AppGuardrail Console</h1>
   detail.innerHTML="";
   if(lastDetailFocus instanceof HTMLElement && lastDetailFocus.isConnected){
     lastDetailFocus.removeAttribute("aria-busy");
+    lastDetailFocus.removeAttribute("aria-disabled");
     delete lastDetailFocus.dataset.detailRequest;
     lastDetailFocus.focus();
   }
@@ -135,8 +137,8 @@ <h1>AppGuardrail Console</h1>
       <td>${esc(s.created_at)}</td><td>${esc(s.repo||"—")}</td><td><code>${esc((s.commit||"—").slice(0,10))}</code></td>
       <td>${s.total}</td><td>${pill(s.deploy_blocking,"var(--crit)")}</td><td>${pill(s.new_blocking,"var(--high)")}</td></tr>`).join("")||'<tr><td colspan="6" class="muted">No scans. POST to /api/v1/scans from CI.</td></tr>';
     document.querySelectorAll("tr.scan").forEach(tr=>{
-      tr.onclick=()=>detail(tr.dataset.id,tr);
-      tr.addEventListener('keydown', e => { if(e.key === 'Enter' || e.key === ' ') { e.preventDefault(); detail(tr.dataset.id,tr); } });
+      tr.onclick=()=>{ if(tr.getAttribute("aria-disabled")==="true" || tr.getAttribute("aria-busy")==="true") return; detail(tr.dataset.id,tr); };
+      tr.addEventListener('keydown', e => { if(e.key === 'Enter' || e.key === ' ') { e.preventDefault(); if(tr.getAttribute("aria-disabled")==="true" || tr.getAttribute("aria-busy")==="true") return; detail(tr.dataset.id,tr); } });
     });
   }catch(e){ $("#msg").classList.remove("hidden");$("#app").classList.add("hidden");
     $("#msg").innerHTML=`<span class="err">${esc(e.message)}</span>`; }
@@ -149,6 +151,7 @@ <h1>AppGuardrail Console</h1>
   if(tr){
     tr.dataset.detailRequest=String(requestId);
     tr.setAttribute("aria-busy","true");
+    tr.setAttribute("aria-disabled","true");
   }
   d.classList.remove("hidden");
   d.innerHTML='<div aria-live="polite" class="muted">Loading scan details...</div>';
@@ -173,6 +176,7 @@ <h1>AppGuardrail Console</h1>
   }finally{
     if(tr&&tr.dataset.detailRequest===String(requestId)){
       tr.removeAttribute("aria-busy");
+      tr.removeAttribute("aria-disabled");
       delete tr.dataset.detailRequest;
     }
   }

tests/test_console_detail_loading_contract.py

@@ -29,6 +29,16 @@ def test_console_exposes_loading_busy_and_error_states():
     assert 'tr.removeAttribute("aria-busy");' in html
 
 
+def test_console_busy_scan_row_exposes_temporary_action_unavailability():
+    """Busy focusable scan rows must expose and enforce transient unavailability."""
+    html = _console_html()
+
+    assert 'tr.setAttribute("aria-disabled","true");' in html
+    assert 'tr.getAttribute("aria-disabled")==="true"' in html
+    assert 'lastDetailFocus.removeAttribute("aria-disabled");' in html
+    assert 'tr.removeAttribute("aria-disabled");' in html
+
+
 def test_console_detail_scrolling_respects_reduced_motion():
     """Successful and failed detail requests must honor reduced-motion preferences."""
     html = _console_html()