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_scripts/be/js/jquery.nouislider.init.js

@@ -0,0 +1,12 @@
+$(document).ready(function(){
+	$(document).on("dblclick", ".noUi-handle.noUi-handle-lower", function (){
+		var slider = $(this).parent().parent().parent().parent().find(".noUi-target.noUi-ltr.noUi-horizontal.noUi-background");
+		
+		$(this).parent().parent().parent().parent().find("input").val(function() {
+			var _val = this.defaultValue;
+			slider.val(_val);
+
+			return _val;
+		});
+	});
+});