feat: Reinitialize frontend with SvelteKit and TypeScript

- Delete old Vite+Svelte frontend
- Initialize new SvelteKit project with TypeScript
- Configure Tailwind CSS v4 + DaisyUI
- Implement JWT authentication with auto-refresh
- Create login page with form validation (Zod)
- Add protected route guards
- Update Docker configuration for single-stage build
- Add E2E tests with Playwright (6/11 passing)
- Fix Svelte 5 reactivity with $state() runes

Known issues:
- 5 E2E tests failing (timing/async issues)
- Token refresh implementation needs debugging
- Validation error display timing

backend/database/factories/UserFactory.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Database\Factories;
+
+use Illuminate\Database\Eloquent\Factories\Factory;
+use Illuminate\Support\Facades\Hash;
+use Illuminate\Support\Str;
+
+/**
+ * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\User>
+ */
+class UserFactory extends Factory
+{
+    /**
+     * The current password being used by the factory.
+     */
+    protected static ?string $password;
+
+    /**
+     * Define the model's default state.
+     *
+     * @return array<string, mixed>
+     */
+    public function definition(): array
+    {
+        return [
+            'name' => fake()->name(),
+            'email' => fake()->unique()->safeEmail(),
+            'email_verified_at' => now(),
+            'password' => static::$password ??= Hash::make('password'),
+            'role' => fake()->randomElement(['superuser', 'manager', 'developer', 'top_brass']),
+            'remember_token' => Str::random(10),
+        ];
+    }
+
+    /**
+     * Indicate that the model's email address should be unverified.
+     */
+    public function unverified(): static
+    {
+        return $this->state(fn (array $attributes) => [
+            'email_verified_at' => null,
+        ]);
+    }
+}