feat(ui): Refonte UI page Libraries - design moderne en cards

- Remplacement du tableau moche par des cards modernes
- Layout responsive en grille (grid-template-columns)
- Cards avec hover effects (ombre + léger déplacement)
- Stats visibles en boxes cliquables (Books/Series)
- Monitoring compact avec checkboxes côte à côte
- Badges pour Disabled et Watcher (⚡)
- Actions regroupées avec boutons colorés
- Formulaire d'ajout plus visible et stylisé
- CSS complet avec dark mode support
- MonitoringForm simplifié et compact

apps/backoffice/app/components/MonitoringForm.tsx

@@ -34,10 +34,11 @@ export function MonitoringForm({ libraryId, monitorEnabled, scanMode, watcherEna
   };
 
   return (
-    <form action={handleSubmit} className="monitoring-form">
+    <form action={handleSubmit} className="monitoring-form-compact">
       <input type="hidden" name="id" value={libraryId} />
-      <div className="monitor-options">
+      
-        <label className={`monitor-toggle ${isPending ? 'pending' : ''}`}>
+      <div className="monitor-row">
+        <label className={`monitor-checkbox ${isPending ? 'pending' : ''}`}>
           <input
             type="checkbox"
             name="monitor_enabled"
@@ -45,9 +46,10 @@ export function MonitoringForm({ libraryId, monitorEnabled, scanMode, watcherEna
             defaultChecked={monitorEnabled}
             disabled={isPending}
           />
-          <span className="toggle-label">Auto-scan</span>
+          <span>Auto</span>
         </label>
-        <label className={`monitor-toggle watcher-toggle ${isPending ? 'pending' : ''} ${watcherEnabled ? 'active' : ''}`}>
+        
+        <label className={`monitor-checkbox watcher ${isPending ? 'pending' : ''} ${watcherEnabled ? 'active' : ''}`}>
           <input
             type="checkbox"
             name="watcher_enabled"
@@ -55,23 +57,25 @@ export function MonitoringForm({ libraryId, monitorEnabled, scanMode, watcherEna
             defaultChecked={watcherEnabled}
             disabled={isPending}
           />
-          <span className="toggle-label">Watcher</span>
+          <span title="Real-time file watcher">⚡</span>
-          <span className="toggle-hint" title="Detects file changes in real-time">⚡</span>
         </label>
+        
+        <select
+          name="scan_mode"
+          defaultValue={scanMode}
+          disabled={isPending}
+          className="scan-mode-select"
+        >
+          <option value="manual">Manual</option>
+          <option value="hourly">Hourly</option>
+          <option value="daily">Daily</option>
+          <option value="weekly">Weekly</option>
+        </select>
+        
+        <button type="submit" className="save-btn" disabled={isPending}>
+          {isPending ? '...' : '✓'}
+        </button>
       </div>
-      <select
-        name="scan_mode"
-        defaultValue={scanMode}
-        disabled={isPending}
-      >
-        <option value="manual">Manual only</option>
-        <option value="hourly">Hourly</option>
-        <option value="daily">Daily</option>
-        <option value="weekly">Weekly</option>
-      </select>
-      <button type="submit" className="update-btn" disabled={isPending}>
-        {isPending ? '...' : 'Update'}
-      </button>
     </form>
   );
 }

apps/backoffice/app/globals.css

@@ -1630,3 +1630,352 @@ tr.job-highlighted td {
 .view-btn:hover {
   background: hsl(198 78% 37% / 0.2);
 }
+
+/* Libraries Grid - Modern Card Layout */
+.libraries-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
+  gap: 20px;
+  margin-top: 24px;
+}
+
+.library-card {
+  background: var(--card);
+  border: 1px solid var(--line);
+  border-radius: 12px;
+  padding: 20px;
+  display: flex;
+  flex-direction: column;
+  gap: 16px;
+  transition: box-shadow 0.2s ease, transform 0.2s ease;
+}
+
+.library-card:hover {
+  box-shadow: var(--shadow-2);
+  transform: translateY(-2px);
+}
+
+/* Library Header */
+.library-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: flex-start;
+  gap: 12px;
+}
+
+.library-name {
+  margin: 0;
+  font-size: 1.25rem;
+  font-weight: 700;
+  color: var(--foreground);
+  line-height: 1.3;
+  flex: 1;
+}
+
+.library-badges {
+  display: flex;
+  gap: 6px;
+  flex-shrink: 0;
+}
+
+.badge-disabled {
+  background: hsl(220 13% 80%);
+  color: hsl(220 13% 40%);
+  padding: 2px 8px;
+  border-radius: 4px;
+  font-size: 0.7rem;
+  font-weight: 700;
+  text-transform: uppercase;
+}
+
+.badge-watcher {
+  background: hsl(45 93% 90%);
+  padding: 2px 6px;
+  border-radius: 4px;
+  font-size: 0.9rem;
+}
+
+/* Library Path */
+.library-path {
+  font-size: 0.8rem;
+  color: var(--text-muted);
+  background: hsl(220 13% 95%);
+  padding: 6px 10px;
+  border-radius: 6px;
+  word-break: break-all;
+}
+
+.dark .library-path {
+  background: hsl(220 13% 20%);
+}
+
+/* Library Stats */
+.library-stats {
+  display: flex;
+  gap: 12px;
+}
+
+.stat-box {
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  padding: 12px;
+  background: hsl(198 52% 95%);
+  border-radius: 8px;
+  text-decoration: none;
+  color: inherit;
+  transition: background 0.2s ease;
+}
+
+.stat-box:hover {
+  background: hsl(198 52% 90%);
+}
+
+.stat-number {
+  font-size: 1.5rem;
+  font-weight: 700;
+  color: hsl(198 78% 37%);
+}
+
+.stat-label {
+  font-size: 0.75rem;
+  color: var(--text-muted);
+  text-transform: uppercase;
+  margin-top: 2px;
+}
+
+.dark .stat-box {
+  background: hsl(198 52% 20%);
+}
+
+.dark .stat-box:hover {
+  background: hsl(198 52% 25%);
+}
+
+.dark .stat-number {
+  color: hsl(198 78% 65%);
+}
+
+/* Library Monitoring */
+.library-monitoring {
+  background: hsl(220 13% 97%);
+  border-radius: 8px;
+  padding: 12px;
+}
+
+.dark .library-monitoring {
+  background: hsl(220 13% 18%);
+}
+
+.monitor-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 8px;
+}
+
+.monitor-status {
+  font-size: 0.85rem;
+  font-weight: 600;
+}
+
+.monitor-status.active {
+  color: hsl(142 60% 45%);
+}
+
+.monitor-status.inactive {
+  color: var(--text-muted);
+}
+
+.next-scan-badge {
+  font-size: 0.75rem;
+  background: hsl(198 52% 90%);
+  color: hsl(198 78% 37%);
+  padding: 2px 8px;
+  border-radius: 12px;
+  font-weight: 600;
+}
+
+.dark .next-scan-badge {
+  background: hsl(198 52% 25%);
+  color: hsl(198 78% 65%);
+}
+
+/* Library Actions */
+.library-actions {
+  display: flex;
+  gap: 8px;
+}
+
+.action-btn {
+  flex: 1;
+  padding: 8px 12px;
+  border: none;
+  border-radius: 6px;
+  font-size: 0.85rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition: opacity 0.2s ease;
+}
+
+.action-btn:hover {
+  opacity: 0.8;
+}
+
+.index-btn {
+  background: hsl(142 60% 45% / 0.15);
+  color: hsl(142 60% 35%);
+  border: 1px solid hsl(142 60% 45% / 0.3);
+}
+
+.full-btn {
+  background: hsl(280 60% 45% / 0.15);
+  color: hsl(280 60% 45%);
+  border: 1px solid hsl(280 60% 45% / 0.3);
+}
+
+.delete-btn {
+  flex: 0 0 auto;
+  background: hsl(2 72% 48% / 0.1);
+  color: hsl(2 72% 48%);
+  border: 1px solid hsl(2 72% 48% / 0.3);
+  padding: 8px;
+}
+
+.delete-form {
+  margin-left: auto;
+}
+
+/* Add Library Form */
+.library-add-form {
+  margin-bottom: 8px;
+}
+
+.library-add-form h2 {
+  margin: 0 0 16px 0;
+  font-size: 1.1rem;
+  color: var(--foreground);
+}
+
+.form-row {
+  display: flex;
+  gap: 12px;
+  align-items: stretch;
+}
+
+.library-name-input {
+  flex: 1;
+  min-width: 200px;
+}
+
+.library-folder-select {
+  flex: 2;
+  min-width: 250px;
+}
+
+.add-btn {
+  padding: 10px 24px;
+  background: hsl(198 78% 37%);
+  color: white;
+  border: none;
+  border-radius: 8px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 0.2s ease;
+}
+
+.add-btn:hover {
+  background: hsl(198 78% 32%);
+}
+
+/* Responsive */
+@media (max-width: 768px) {
+  .libraries-grid {
+    grid-template-columns: 1fr;
+  }
+  
+  .form-row {
+    flex-direction: column;
+  }
+  
+  .library-name-input,
+  .library-folder-select {
+    width: 100%;
+  }
+}
+
+/* Compact Monitoring Form */
+.monitoring-form-compact {
+  margin-top: 8px;
+}
+
+.monitor-row {
+  display: flex;
+  gap: 8px;
+  align-items: center;
+}
+
+.monitor-checkbox {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  padding: 4px 8px;
+  background: hsl(220 13% 95%);
+  border-radius: 6px;
+  cursor: pointer;
+  font-size: 0.8rem;
+  transition: background 0.2s ease;
+}
+
+.monitor-checkbox:hover {
+  background: hsl(220 13% 90%);
+}
+
+.monitor-checkbox input[type="checkbox"] {
+  cursor: pointer;
+}
+
+.monitor-checkbox.watcher.active {
+  background: hsl(45 93% 90%);
+}
+
+.dark .monitor-checkbox {
+  background: hsl(220 13% 25%);
+}
+
+.dark .monitor-checkbox:hover {
+  background: hsl(220 13% 30%);
+}
+
+.dark .monitor-checkbox.watcher.active {
+  background: hsl(45 93% 25%);
+}
+
+.scan-mode-select {
+  flex: 1;
+  padding: 4px 8px;
+  font-size: 0.8rem;
+  border: 1px solid var(--line);
+  border-radius: 6px;
+  background: var(--card);
+}
+
+.save-btn {
+  padding: 4px 10px;
+  background: hsl(198 78% 37%);
+  color: white;
+  border: none;
+  border-radius: 6px;
+  cursor: pointer;
+  font-size: 0.9rem;
+}
+
+.save-btn:hover:not(:disabled) {
+  background: hsl(198 78% 32%);
+}
+
+.save-btn:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}