feat: implement ThemeProvider and SoundCard components; add utility functions for formatting duration and size

src/utils/format-duration.ts

@@ -0,0 +1,18 @@
+export function formatDuration(ms: number): string {
+  if (isNaN(ms) || ms < 0) return '0:00'
+
+  // Convert milliseconds to seconds
+  const totalSeconds = Math.floor(ms / 1000)
+
+  // Calculate hours, minutes, and remaining seconds
+  const hours = Math.floor(totalSeconds / 3600)
+  const minutes = Math.floor((totalSeconds % 3600) / 60)
+  const seconds = totalSeconds % 60
+
+  // Format based on duration
+  if (hours > 0) {
+    return `${hours}:${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`
+  } else {
+    return `${minutes}:${seconds.toString().padStart(2, '0')}`
+  }
+}