perf: requireAdmin — 2 queries → 1 (User + userRoles eager join TypeORM)

backend/src/middleware/admin.middleware.ts

@@ -1,7 +1,6 @@
 import { Response, NextFunction } from "express";
 import { AppDataSource } from "../config/data-source";
 import { User } from "../entities/User";
-import { UserRole } from "../entities/UserRole";
 import { AuthenticatedRequest } from "./auth.middleware";
 import logger from "../utils/logger";
 
@@ -19,6 +18,7 @@ export const requireAdmin = async (
   try {
     const localUser = await AppDataSource.getRepository(User).findOne({
       where: { superOAuthId: req.user.id },
+      relations: { userRoles: { role: true } },
     });
 
     if (!localUser) {
@@ -26,12 +26,7 @@ export const requireAdmin = async (
       return;
     }
 
-    const userRoles = await AppDataSource.getRepository(UserRole).find({
-      where: { userId: localUser.id },
-      relations: ["role"],
-    });
-
-    const slugs = userRoles.map((ur) => ur.role.slug);
+    const slugs = localUser.userRoles.map((ur) => ur.role.slug);
     const isAdmin = slugs.includes("admin") || slugs.includes("super_admin");
 
     if (!isAdmin) {