sync from GitHub 45aac99: feat(v5备份): 面板区分全量/增量+恢复改串行下载

Auto-synced from GitHub commit 45aac99b4359b898d2fa537a9828caecc934c922

app/services/backup_v5_store.py

@@ -339,6 +339,7 @@ def list_sets(user_id: str, limit: int = 20, offset: int = 0) -> list[dict]:
         except Exception:
             m = {}
         stats = m.get("stats", {}) if isinstance(m, dict) else {}
+        mode = m.get("mode") if isinstance(m, dict) else None
         out.append({
             "setId": r["set_id"],
             "exportedAt": m.get("exportedAt") or int(r["created_at"]),
@@ -349,6 +350,7 @@ def list_sets(user_id: str, limit: int = 20, offset: int = 0) -> list[dict]:
             "prevSetId": r["prev_set_id"] or "",
             "zipAvailable": int(r["total_size"]) <= MAX_ZIP_SIZE,
             "stats": stats,
+            "mode": mode if mode in ("full", "incremental") else "incremental",
         })
     return out