added get users admin only endpoint

src/controllers/user.controller.ts

@@ -0,0 +1,13 @@
+import type { Request, Response, NextFunction } from "express";
+import { UserService } from "../services/user.service.js";
+
+export class UserController {
+  static async getAll(_req: Request, res: Response, next: NextFunction) {
+    try {
+      const users = await UserService.getAll();
+      res.status(200).json(users);
+    } catch (err) {
+      next(err);
+    }
+  }
+}