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

f_offline/assets/js/menu.js

@@ -0,0 +1,42 @@
+/**
+ * main.js
+ * http://www.codrops.com
+ *
+ * Licensed under the MIT license.
+ * http://www.opensource.org/licenses/mit-license.php
+ * 
+ * Copyright 2014, Codrops
+ * http://www.codrops.com
+ */
+(function() {
+
+	var bodyEl = document.body,
+		content = document.querySelector( '.content-wrap' ),
+		openbtn = document.getElementById( 'open-button' ),
+		closebtn = document.getElementById( 'close-button' ),
+		isOpen = false;
+
+	function init() {
+		initEvents();
+	}
+
+	function initEvents() {
+		openbtn.addEventListener( 'click', toggleMenu );
+		if( closebtn ) {
+			closebtn.addEventListener( 'click', toggleMenu );
+		}		
+	}
+
+	function toggleMenu() {
+		if( isOpen ) {
+			classie.remove( bodyEl, 'show-menu' );
+		}
+		else {
+			classie.add( bodyEl, 'show-menu' );
+		}
+		isOpen = !isOpen;
+	}
+
+	init();
+
+})();