Refactor code structure for improved readability and maintainability

src/server-deno/infrastructure/AudioStreamingService.ts

@@ -204,7 +204,9 @@ export class AudioStreamingService {
    * Set common caching headers
    */
   private setCommonHeaders(ctx: Context): void {
-    ctx.response.headers.set('Cache-Control', 'no-store');
+    // Allow caching of audio content to prevent redundant range requests
+    // The token system already provides security
+    ctx.response.headers.set('Cache-Control', 'public, max-age=3600');
     ctx.response.headers.set('Accept-Ranges', 'bytes');
   }
 }