added AuthController and StaffMember model, update auth config and routes

app/Http/Controllers/AuthController.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Auth;
+
+class AuthController extends Controller
+{
+    // Your login method is likely here...
+    
+    /**
+     * Log the user out of the application.
+     */
+    public function logout(Request $request)
+    {
+        // 1. Log the user out
+        Auth::logout();
+    
+        // 2. Invalidate the user's session
+        $request->session()->invalidate();
+    
+        // 3. Regenerate the CSRF token for security
+        $request->session()->regenerateToken();
+    
+        // 4. Redirect them back to the login page
+        return redirect('/login');
+    }
+}