feat: add Dockerfile and docker-compose.yml for Coolify deployment

Dockerfile

@@ -0,0 +1,21 @@
+FROM php:8.2-apache
+
+# Install PDO MySQL extension
+RUN docker-php-ext-install pdo pdo_mysql
+
+# Enable Apache mod_rewrite
+RUN a2enmod rewrite
+
+# Configure PHP settings for upload limit (matching application config 10MB limit)
+RUN echo "upload_max_filesize = 16M" > /usr/local/etc/php/conf.d/uploads.ini \
+    && echo "post_max_size = 16M" >> /usr/local/etc/php/conf.d/uploads.ini \
+    && echo "memory_limit = 256M" >> /usr/local/etc/php/conf.d/uploads.ini
+
+# Copy application source code
+COPY . /var/www/html/
+
+# Set correct permissions
+RUN chown -R www-data:www-data /var/www/html/
+
+# Expose port 80
+EXPOSE 80