fix(runtime-config): resolver MUSIC_DIR en tiempo de ejecución y no hornearlo en build; endpoints usan env absoluto o public fallback

server/api/music/index.get.ts

@@ -1,5 +1,5 @@
 import { promises as fs } from 'fs'
-import { join } from 'path'
+import { join, resolve, isAbsolute } from 'path'
 
 export default defineEventHandler(async (event) => {
   try {
@@ -9,10 +9,12 @@ export default defineEventHandler(async (event) => {
     console.log(`[MUSIC API] Music list request from ${realIP}`)
     
     const config = useRuntimeConfig()
-    // Prefer absolute dir computed at build time; fallback to env or public path
     const defaultPublicPath = config.public?.musicPath || '/music'
     const publicRel = defaultPublicPath.replace(/^\//, '')
-    const musicDir = config.musicDirAbs || process.env.MUSIC_DIR || join(process.cwd(), 'public', publicRel)
+    const envDir = process.env.MUSIC_DIR
+    const musicDir = envDir
+      ? (isAbsolute(envDir) ? envDir : resolve(process.cwd(), envDir))
+      : join(process.cwd(), 'public', publicRel)
     
     // Check if music directory exists
     try {