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

Caddyfile

@@ -0,0 +1,99 @@
+{
+  debug
+}
+
+# Local development configuration
+:80 {
+
+  root * /srv/easystream
+  encode zstd gzip
+  file_server
+
+  # Token System Routes (Direct handling)
+  @token_purchase path /token_purchase /token-purchase /tokens
+  rewrite @token_purchase /f_modules/m_frontend/m_donations/token_purchase.php
+
+  @token_redemption path /token_redemption /token-redemption
+  rewrite @token_redemption /f_modules/m_frontend/m_donations/token_redemption.php
+
+  # Donation Routes
+  @donate path /donate /donation
+  rewrite @donate /f_modules/m_frontend/m_donations/rainforest_donation_form.php
+
+  # System Status Route
+  @health path /health /status
+  rewrite @health /status.php
+
+  # Upload Route (handled by parser)
+  @upload path /upload
+  rewrite @upload /parser.php
+
+  # Authentication Routes (handled by parser)
+  @signin path /signin /login
+  rewrite @signin /parser.php
+
+  @signup path /signup /register
+  rewrite @signup /parser.php
+
+  # Admin panel routing
+  @admin path /admin /admin/*
+  rewrite @admin /admin.php
+
+  # Homepage (handled by parser)
+  @root path /
+  rewrite @root /parser.php
+
+  # Serve HLS (from SRS volume) under /hls
+  handle_path /hls/* {
+    root * /var/www/hls
+    header Cache-Control "no-cache"
+    header Access-Control-Allow-Origin "*"
+    file_server
+  }
+
+  # PHP with fallback to index.php for non-existent paths
+  php_fastcgi php:9000 {
+    try_files {path} {path}/ /index.php?{query}
+  }
+
+  # Preflight at a friendly path
+  @preflight path /preflight
+  rewrite @preflight /tests/preflight.php
+
+  # Redirect old "home" to root
+  @oldhome path_regexp oldhome ^.*/home$
+  redir @oldhome / 301
+
+  # Previews mapping to actual files
+  @prev_default path /previews/default.mp4
+  rewrite @prev_default /f_data/data_userfiles/user_media/default.mp4
+
+  @prev_stream path_regexp prev_stream ^/previews/s/([^/]+)/([^/]+)\.mp4$
+  rewrite @prev_stream /f_data/data_userfiles/user_media/{re.prev_stream.1}/s/{re.prev_stream.2}.mp4
+
+  @prev_video path_regexp prev_video ^/previews/([^/]+)/([^/]+)\.mp4$
+  rewrite @prev_video /f_data/data_userfiles/user_media/{re.prev_video.1}/v/{re.prev_video.2}.mp4
+
+  # Block sensitive source/template/log files
+  @blocked {
+    path *.inc *.inc.php *.shtml *.cgi *.pl *.py *.asp *.aspx *.sh *.cin *.tpl *.tplb *.log
+  }
+  respond @blocked 403
+
+  # Static cache
+  @static_long {
+    path *.ico *.pdf *.flv *.gif *.jpg *.jpeg *.png *.svg *.webp *.css *.js *.eot *.woff *.otf *.ttf
+  }
+  header @static_long Cache-Control "public, max-age=604800"
+
+  handle_errors {
+    @notfound expression {http.error.status_code} == 404
+    rewrite @notfound /index.php?error=404
+    php_fastcgi php:9000
+  }
+
+  header {
+    X-Content-Type-Options "nosniff"
+    Referrer-Policy "strict-origin-when-cross-origin"
+  }
+}