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/seeders/UserSeeder.php

@@ -0,0 +1,65 @@
+<?php
+
+namespace Database\Seeders;
+
+use Illuminate\Database\Seeder;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Hash;
+use Illuminate\Support\Str;
+
+class UserSeeder extends Seeder
+{
+    /**
+     * Run the database seeds.
+     */
+    public function run(): void
+    {
+        // Create superuser for testing
+        DB::table('users')->updateOrInsert(
+            ['email' => 'superuser@headroom.test'],
+            [
+                'id' => (string) Str::uuid(),
+                'name' => 'Super User',
+                'email' => 'superuser@headroom.test',
+                'password' => Hash::make('password'),
+                'role' => 'superuser',
+                'created_at' => now(),
+                'updated_at' => now(),
+            ]
+        );
+
+        // Create test users for each role
+        $testUsers = [
+            [
+                'name' => 'Manager User',
+                'email' => 'manager@headroom.test',
+                'role' => 'manager',
+            ],
+            [
+                'name' => 'Developer User',
+                'email' => 'developer@headroom.test',
+                'role' => 'developer',
+            ],
+            [
+                'name' => 'Top Brass User',
+                'email' => 'topbrass@headroom.test',
+                'role' => 'top_brass',
+            ],
+        ];
+
+        foreach ($testUsers as $user) {
+            DB::table('users')->updateOrInsert(
+                ['email' => $user['email']],
+                [
+                    'id' => (string) Str::uuid(),
+                    'name' => $user['name'],
+                    'email' => $user['email'],
+                    'password' => Hash::make('password'),
+                    'role' => $user['role'],
+                    'created_at' => now(),
+                    'updated_at' => now(),
+                ]
+            );
+        }
+    }
+}