fix: include user relation in scheme create, use raw UUID as id

src/routes/favorites.ts

@@ -16,7 +16,7 @@ function sourceToType(source?: string): string {
 // 格式化方案卡片（对齐顶层 API）
 function formatScheme(s: any) {
   return {
-    id: parseInt(s.id, 36) || String(s.id).split('-')[0] || s.id,
+    id: s.id,
     user_id: s.userId,
     description: s.description || '',
     scheme_content: s.schemeContent || '',