fix list and improve cloud functions

functions/src/music.js

@@ -490,18 +490,16 @@ exports.sunoCallback = onRequest({ methods: ["POST"] }, async (req, res) => {
 
     // 1) Récupérer le projectId associé au taskId
     let projectId = null;
-    try {
-      const projSnap = await db
-        .collection("projects")
-        .where("sunoTaskId", "==", taskId)
-        .limit(1)
-        .get();
-      if (!projSnap.empty) {
-        projectId = projSnap.docs[0].id;
-      }
-    } catch (e) {
-      console.error("❌ [SunoCallback] Erreur lookup project par taskId:", e);
+    const projSnap = await db
+      .collection("projects")
+      .where("sunoTaskId", "==", taskId)
+      .limit(1)
+      .get();
+    if (projSnap.empty) {
+      throw new Error("Aucun projet trouvé pour ce taskId");
     }
+    projectId = projSnap.docs[0].id;
+    const { userId } = projSnap.docs[0].data() || {};
 
     if (!projectId) {
       console.warn("⚠️ [SunoCallback] Aucun projet trouvé pour", { taskId });
@@ -540,7 +538,7 @@ exports.sunoCallback = onRequest({ methods: ["POST"] }, async (req, res) => {
         console.log(`⬇️ [SunoCallback] Téléchargement piste ${index + 1}`);
         const resp = await axios.get(url, { responseType: "arraybuffer" });
         const buffer = Buffer.from(resp.data);
-        const path = `musics/${projectId}/sound${index + 1}.mp3`;
+        const path = `users/${userId}/projects/${projectId}/task-${taskId}-${index + 1}.mp3`;
         const token = require("crypto").randomUUID();
         const file = bucket.file(path);
         await file.save(buffer, {