feat: Implement device-specific video uploads and generate comprehensive OpenAPI documentation.

Backend/routes/admin.ts

@@ -1,4 +1,5 @@
-import { NextFunction, Request, Response, Router } from 'express';
+import type { NextFunction, Request, Response } from 'express';
+import { Router } from 'express';
 import { z } from 'zod';
 
 import { ensureMinioBucket, minioBucket, minioClient, minioPresignedExpirySeconds } from '../utils/minio';