feat: accept any audio/video upload, server converts to 6s compressed MP3

lib/convert.ts

@@ -1,23 +1,18 @@
 import { execSync } from "child_process";
-import fs from "fs";
 
-export function convertOggToMp3(inputPath: string, outputPath: string): boolean {
+/**
+ * Convert any audio/video file to a 6-second compressed MP3 via ffmpeg.
+ * Returns true on success, false on failure.
+ * The output file is always mp3Path (overwritten if exists).
+ */
+export function convertToCompressedMp3(inputPath: string, mp3Path: string): boolean {
   try {
     execSync(
-      `ffmpeg -i "${inputPath}" -codec:a libmp3lame -b:a 128k -y "${outputPath}" 2>/dev/null`,
-      { timeout: 15000 }
+      `ffmpeg -i "${inputPath}" -t 6 -vn -codec:a libmp3lame -b:a 64k -y "${mp3Path}" 2>/dev/null`,
+      { timeout: 30000 }
     );
     return true;
   } catch {
     return false;
   }
 }
-
-export function convertOggToMp3OrCopy(inputPath: string, mp3Path: string): string {
-  if (convertOggToMp3(inputPath, mp3Path)) {
-    return mp3Path;
-  }
-  // fallback: keep original OGG
-  fs.copyFileSync(inputPath, mp3Path.replace(/\.mp3$/, ".ogg"));
-  return mp3Path.replace(/\.mp3$/, ".ogg");
-}