feat: Add comprehensive documentation suite and reorganize project structure

- Created complete documentation in docs/ directory
- Added PROJECT_OVERVIEW.md with feature highlights and getting started guide
- Added ARCHITECTURE.md with system design and technical details
- Added SECURITY.md with comprehensive security implementation guide
- Added DEVELOPMENT.md with development workflows and best practices
- Added DEPLOYMENT.md with production deployment instructions
- Added API.md with complete REST API documentation
- Added CONTRIBUTING.md with contribution guidelines
- Added CHANGELOG.md with version history and migration notes
- Reorganized all documentation files into docs/ directory for better organization
- Updated README.md with proper documentation links and quick navigation
- Enhanced project structure with professional documentation standards

Dockerfile.php

@@ -0,0 +1,37 @@
+FROM php:8.2-fpm
+
+RUN apt-get update && apt-get install -y \
+    libfreetype6-dev libjpeg62-turbo-dev libpng-dev \
+    libzip-dev libonig-dev libicu-dev zlib1g-dev \
+    unzip git curl ffmpeg && \
+    rm -rf /var/lib/apt/lists/*
+
+# PHP extensions needed by the app
+RUN docker-php-ext-configure gd --with-freetype --with-jpeg && \
+    docker-php-ext-install -j$(nproc) gd exif zip intl sockets mysqli pdo_mysql
+
+# Install Redis extension
+RUN pecl install redis && docker-php-ext-enable redis
+
+# PHP runtime settings
+RUN printf '%s\n' \
+  'date.timezone=UTC' \
+  'memory_limit=512M' \
+  'upload_max_filesize=256M' \
+  'post_max_size=256M' \
+  'display_errors=On' \
+  'error_reporting=E_ALL | E_DEPRECATED | E_STRICT' \
+  'log_errors=On' \
+  'error_log=/proc/self/fd/2' > /usr/local/etc/php/conf.d/zz-easystream.ini
+
+# Configure PHP-FPM to pass environment variables
+RUN printf '%s\n' \
+  'clear_env = no' \
+  'env[DB_HOST] = $DB_HOST' \
+  'env[DB_NAME] = $DB_NAME' \
+  'env[DB_USER] = $DB_USER' \
+  'env[DB_PASS] = $DB_PASS' \
+  'env[REDIS_HOST] = $REDIS_HOST' \
+  'env[REDIS_PORT] = $REDIS_PORT' \
+  'env[REDIS_DB] = $REDIS_DB' \
+  'env[MAIN_URL] = $MAIN_URL' > /usr/local/etc/php-fpm.d/zz-environment.conf