v1.9.11: Bouton 'Test Power Supply' (check sous-tension rapide)

Ajoute un bouton à côté de 'Run Self Test' (4 pages) qui lance
uniquement le check sous-tension dans un petit modal dédié, sans
dérouler tout le Self Test. Réutilise l'endpoint type=throttled.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

html/assets/js/selftest.js

@@ -1025,6 +1025,65 @@ function downloadReport() {
   }, 100);
 }
 
+// ============================================
+// STANDALONE POWER SUPPLY TEST (quick check)
+// ============================================
+function runPowerTest() {
+  const modalEl = document.getElementById('powerTestModal');
+  const bodyEl = document.getElementById('powerTest_body');
+
+  bodyEl.innerHTML = `
+    <div class="d-flex align-items-center text-primary">
+      <div class="spinner-border spinner-border-sm me-2" role="status"></div>
+      <span>Lecture de l'alimentation (vcgencmd get_throttled)...</span>
+    </div>`;
+
+  const modal = bootstrap.Modal.getOrCreateInstance(modalEl);
+  modal.show();
+
+  $.ajax({
+    url: 'launcher.php?type=throttled',
+    dataType: 'json',
+    method: 'GET',
+    cache: false,
+    timeout: 10000,
+    success: function(data) { renderPowerTestResult(bodyEl, data); },
+    error: function(xhr, status, error) {
+      bodyEl.innerHTML = `<div class="alert alert-secondary mb-0">Erreur: ${error || status}</div>`;
+    }
+  });
+}
+
+function renderPowerTestResult(bodyEl, data) {
+  if (!data || !data.available) {
+    bodyEl.innerHTML = `<div class="alert alert-secondary mb-0">${(data && data.error) || 'vcgencmd indisponible'}</div>`;
+    return;
+  }
+
+  let alertClass, icon;
+  if (data.status === 'critical') { alertClass = 'alert-danger'; icon = '✗'; }
+  else if (data.status === 'warning') { alertClass = 'alert-warning'; icon = '!'; }
+  else { alertClass = 'alert-success'; icon = '✓'; }
+
+  const flag = (b) => b
+    ? '<span class="badge bg-danger">oui</span>'
+    : '<span class="badge bg-success">non</span>';
+
+  bodyEl.innerHTML = `
+    <div class="alert ${alertClass}">
+      <strong>${icon} ${data.message}</strong>
+    </div>
+    <table class="table table-sm mb-0">
+      <tbody>
+        <tr><td>Valeur brute</td><td><code>${data.raw}</code></td></tr>
+        <tr><td>Sous-tension maintenant</td><td>${flag(data.under_voltage_now)}</td></tr>
+        <tr><td>Throttling maintenant</td><td>${flag(data.throttled_now)}</td></tr>
+        <tr><td>Sous-tension depuis le boot</td><td>${flag(data.under_voltage_occurred)}</td></tr>
+        <tr><td>Throttling depuis le boot</td><td>${flag(data.throttling_occurred)}</td></tr>
+      </tbody>
+    </table>`;
+}
+
 // Load the self-test modal HTML into the page
 function initSelfTestModal() {
   fetch('selftest-modal.html')