Expand .gitignore for Laravel, update README with one-command setup, simplify env configs

src/app/Http/Controllers/Auth/EmailVerificationPromptController.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Http\Controllers\Auth;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Illuminate\View\View;
+
+class EmailVerificationPromptController extends Controller
+{
+    /**
+     * Display the email verification prompt.
+     */
+    public function __invoke(Request $request): RedirectResponse|View
+    {
+        return $request->user()->hasVerifiedEmail()
+                    ? redirect()->intended(route('dashboard', absolute: false))
+                    : view('auth.verify-email');
+    }
+}