feat: Add LDAP/Active Directory integration with group-based access control

- Add PHP LDAP extension to Docker container
- Implement LdapSync class for authentication and user synchronization
- Add automatic user sync via cron (every 30 minutes)
- Create role-based access control system (admin, manager, viewer)
- Add LDAP configuration UI in settings
- Support for both Active Directory and OpenLDAP
- Group-to-role mapping with flexible configuration
- Add 50+ translations (EN + RU) for LDAP features
- Include comprehensive setup documentation
- Enhance Auth::login() with LDAP fallback
- Add LDAP settings page with connection testing

Dockerfile

@@ -1,6 +1,6 @@
 FROM php:8.2-apache
 
-# Install dependencies
+# Install dependencies including LDAP
 RUN apt-get update && apt-get install -y \
     git \
     curl \
@@ -13,7 +13,9 @@ RUN apt-get update && apt-get install -y \
     openssh-client \
     qrencode \
     cron \
-    && docker-php-ext-install pdo_mysql mbstring exif pcntl bcmath gd \
+    libldap2-dev \
+    && docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
+    && docker-php-ext-install pdo_mysql mbstring exif pcntl bcmath gd ldap \
     && a2enmod rewrite \
     && apt-get clean && rm -rf /var/lib/apt/lists/*
 
@@ -39,12 +41,14 @@ RUN chown -R www-data:www-data /var/www/html \
 # Setup cron jobs
 RUN echo "0 * * * * www-data cd /var/www/html && /usr/local/bin/php bin/check_expired_clients.php >> /var/log/cron.log 2>&1" > /etc/cron.d/amnezia-cron \
     && echo "0 * * * * www-data cd /var/www/html && /usr/local/bin/php bin/check_traffic_limits.php >> /var/log/cron.log 2>&1" >> /etc/cron.d/amnezia-cron \
+    && echo "*/30 * * * * www-data cd /var/www/html && /usr/local/bin/php bin/sync_ldap_users.php >> /var/log/ldap_sync.log 2>&1" >> /etc/cron.d/amnezia-cron \
     && echo "*/3 * * * * root /bin/bash /var/www/html/bin/monitor_metrics.sh >> /var/log/metrics_monitor.log 2>&1" >> /etc/cron.d/amnezia-cron \
     && chmod 0644 /etc/cron.d/amnezia-cron \
     && crontab /etc/cron.d/amnezia-cron \
     && touch /var/log/cron.log \
     && touch /var/log/metrics_monitor.log \
-    && touch /var/log/metrics_collector.log
+    && touch /var/log/metrics_collector.log \
+    && touch /var/log/ldap_sync.log
 
 # Make monitor script executable
 RUN chmod +x /var/www/html/bin/monitor_metrics.sh