feat: add settings and reports pages

- Add settings page with organization, sites, courts, and users tabs
- Add reports page with revenue charts and statistics
- Add users API endpoint
- Add sites/[id] API endpoint for CRUD operations
- Add tabs UI component
- Fix sites API to return isActive field

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/web/next.config.js

@@ -1,5 +1,6 @@
 /** @type {import('next').NextConfig} */
 const nextConfig = {
+  output: "standalone",
   transpilePackages: ["@padel-pro/shared"],
   images: {
     remotePatterns: [