Nova versao codex Parecer, atualizacao completa

src/utils/sound.ts

@@ -0,0 +1,25 @@
+/**
+ * Toca um som curto de sucesso (dois tons) usando Web Audio API.
+ * Não requer arquivos de áudio.
+ */
+export function playSuccessSound(): void {
+  try {
+    const ctx = new (window.AudioContext || (window as unknown as { webkitAudioContext: typeof AudioContext }).webkitAudioContext)();
+    const playTone = (frequency: number, startTime: number, duration: number) => {
+      const osc = ctx.createOscillator();
+      const gain = ctx.createGain();
+      osc.connect(gain);
+      gain.connect(ctx.destination);
+      osc.frequency.value = frequency;
+      osc.type = "sine";
+      gain.gain.setValueAtTime(0.15, startTime);
+      gain.gain.exponentialRampToValueAtTime(0.01, startTime + duration);
+      osc.start(startTime);
+      osc.stop(startTime + duration);
+    };
+    playTone(523.25, 0, 0.15);
+    playTone(659.25, 0.18, 0.2);
+  } catch {
+    // Ignora se AudioContext não for suportado ou bloqueado (autoplay policy)
+  }
+}