Add missing files

app/Http/Middleware/SetUserTimezone.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class SetUserTimezone
+{
+    /**
+     * Handle an incoming request.
+     *
+     * Note: We do NOT set the global timezone here because it would interfere
+     * with database operations and helper functions. Instead, the timezone
+     * conversion happens in the userDate() and userDateDiffForHumans() helpers.
+     *
+     * @param  \Closure(\Illuminate\Http\Request): (\Symfony\Component\HttpFoundation\Response)  $next
+     */
+    public function handle(Request $request, Closure $next): Response
+    {
+        // Timezone conversion is handled by helper functions, not middleware
+        // This middleware is kept for future enhancements if needed
+        return $next($request);
+    }
+}