feat: ajout système de préférences utilisateur avec mode PTT par défaut

client/src/App.jsx

@@ -3,6 +3,7 @@ import useLiveKit from './hooks/useLiveKit';
 import PTTButton from './components/PTTButton';
 import UserList from './components/UserList';
 import GroupSelector from './components/GroupSelector';
+import Settings from './components/Settings';
 import './App.css';
 
 const API_URL = import.meta.env.VITE_API_URL || '/api';
@@ -13,6 +14,7 @@ function App() {
   const [groups, setGroups] = useState([]);
   const [isConnecting, setIsConnecting] = useState(false);
   const [error, setError] = useState(null);
+  const [showSettings, setShowSettings] = useState(false);
 
   const {
     isConnected,
@@ -222,12 +224,23 @@ function App() {
             {groups.find(g => g.id === groupId)?.name || groupId}
           </p>
         </div>
-        <button
-          className="btn-disconnect"
-          onClick={handleDisconnect}
-        >
-          Déconnexion
-        </button>
+        <div style={{ display: 'flex', gap: '0.5rem' }}>
+          <button
+            className="btn-icon"
+            onClick={() => setShowSettings(true)}
+            title="Paramètres"
+          >
+            <svg viewBox="0 0 24 24" fill="currentColor" width="20" height="20">
+              <path d="M19.14,12.94c0.04-0.3,0.06-0.61,0.06-0.94c0-0.32-0.02-0.64-0.07-0.94l2.03-1.58c0.18-0.14,0.23-0.41,0.12-0.61 l-1.92-3.32c-0.12-0.22-0.37-0.29-0.59-0.22l-2.39,0.96c-0.5-0.38-1.03-0.7-1.62-0.94L14.4,2.81c-0.04-0.24-0.24-0.41-0.48-0.41 h-3.84c-0.24,0-0.43,0.17-0.47,0.41L9.25,5.35C8.66,5.59,8.12,5.92,7.63,6.29L5.24,5.33c-0.22-0.08-0.47,0-0.59,0.22L2.74,8.87 C2.62,9.08,2.66,9.34,2.86,9.48l2.03,1.58C4.84,11.36,4.8,11.69,4.8,12s0.02,0.64,0.07,0.94l-2.03,1.58 c-0.18,0.14-0.23,0.41-0.12,0.61l1.92,3.32c0.12,0.22,0.37,0.29,0.59,0.22l2.39-0.96c0.5,0.38,1.03,0.7,1.62,0.94l0.36,2.54 c0.05,0.24,0.24,0.41,0.48,0.41h3.84c0.24,0,0.44-0.17,0.47-0.41l0.36-2.54c0.59-0.24,1.13-0.56,1.62-0.94l2.39,0.96 c0.22,0.08,0.47,0,0.59-0.22l1.92-3.32c0.12-0.22,0.07-0.47-0.12-0.61L19.14,12.94z M12,15.6c-1.98,0-3.6-1.62-3.6-3.6 s1.62-3.6,3.6-3.6s3.6,1.62,3.6,3.6S13.98,15.6,12,15.6z"/>
+            </svg>
+          </button>
+          <button
+            className="btn-disconnect"
+            onClick={handleDisconnect}
+          >
+            Déconnexion
+          </button>
+        </div>
       </header>
 
       <main className="app-main">
@@ -252,6 +265,9 @@ function App() {
           audioLevel={audioLevel}
         />
       </main>
+
+      {/* Modal de paramètres */}
+      <Settings isOpen={showSettings} onClose={() => setShowSettings(false)} />
     </div>
   );
 }