Add admin console with login, dashboard, content/config/plugin/user management

File-based admin panel accessible at /admin.php with:
- Session-based auth with bcrypt hashing and brute-force protection
- Dashboard with site statistics and quick actions
- Content manager: browse, create, edit, delete files
- Config editor with JSON validation
- Plugin overview with status indicators
- User management: add, remove, change passwords
- CSRF protection on all forms, path traversal prevention
- Updated README (NL/EN) and guides with admin documentation

admin-console/config/app.php

@@ -1,57 +1,17 @@
 <?php
 
 return [
-    'name' => 'CodePress Admin Console',
+    'name' => 'CodePress Admin',
     'version' => '1.0.0',
     'debug' => $_ENV['APP_DEBUG'] ?? false,
     'timezone' => 'Europe/Amsterdam',
     
-    // Security
-    'security' => [
-        'jwt_secret' => $_ENV['JWT_SECRET'] ?? throw new \RuntimeException('JWT_SECRET environment variable must be set'),
-        'jwt_expiration' => 3600, // 1 hour
-        'session_timeout' => 1800, // 30 minutes
-        'max_login_attempts' => 5,
-        'lockout_duration' => 900, // 15 minutes
-    ],
-    
-    // Database
-    'database' => [
-        'type' => 'sqlite',
-        'path' => __DIR__ . '/../database/admin.db',
-        'backup_path' => __DIR__ . '/../storage/backups/',
-    ],
-    
-    // CodePress Integration
-    'codepress' => [
-        'path' => __DIR__ . '/../../',
-        'content_dir' => __DIR__ . '/../../public/content/',
-        'templates_dir' => __DIR__ . '/../../engine/templates/',
-        'plugins_dir' => __DIR__ . '/../../plugins/',
-    ],
-    
-    // Email
-    'mail' => [
-        'host' => $_ENV['MAIL_HOST'] ?? 'localhost',
-        'port' => $_ENV['MAIL_PORT'] ?? 587,
-        'username' => $_ENV['MAIL_USERNAME'] ?? '',
-        'password' => $_ENV['MAIL_PASSWORD'] ?? '',
-        'from' => $_ENV['MAIL_FROM'] ?? 'admin@codepress.local',
-        'from_name' => 'CodePress Admin',
-    ],
-    
-    // Storage
-    'storage' => [
-        'uploads_path' => __DIR__ . '/../storage/uploads/',
-        'logs_path' => __DIR__ . '/../storage/logs/',
-        'cache_path' => __DIR__ . '/../storage/cache/',
-    ],
-    
-    // UI Settings
-    'ui' => [
-        'theme' => 'bootstrap',
-        'items_per_page' => 20,
-        'date_format' => 'd-m-Y H:i',
-        'timezone' => 'Europe/Amsterdam',
-    ],
-];
+    // Paths
+    'admin_root' => __DIR__ . '/../',
+    'codepress_root' => __DIR__ . '/../../',
+    'content_dir' => __DIR__ . '/../../content/',
+    'config_json' => __DIR__ . '/../../config.json',
+    'plugins_dir' => __DIR__ . '/../../plugins/',
+    'admin_config' => __DIR__ . '/admin.json',
+    'log_file' => __DIR__ . '/../storage/logs/admin.log',
+];