refactor: 前端库整理与图表标准化

库文件整理:
- 所有JS/CSS/字体库统一到lib/js/、lib/css/、lib/webfonts/
- 按名称-版本格式重命名(jquery-3.6.0.min.js等)
- 删除约80个重复/废弃的库文件副本
- 更新17个文件中的引用路径

图表模式标准化:
- moneyflow/realestate/estate3个页面从$.ajax/PHP注入转为fetch+loading overlay模式
- 新增moneyflowData/estateData两个AJAX端点
- chartmoneyflow.js、estate.js移至deprecated

README.md更新为完整功能介绍

Co-Authored-By: Claude Code <noreply@anthropic.com>

lib/DataTables-2/FixedColumns-4.2.2/js/fixedColumns.semanticui.js

@@ -1,58 +0,0 @@
-/*! Semantic ui integration for DataTables' FixedColumns
- * © SpryMedia Ltd - datatables.net/license
- */
-
-(function( factory ){
-	if ( typeof define === 'function' && define.amd ) {
-		// AMD
-		define( ['jquery', 'datatables.net-se', 'datatables.net-fixedcolumns'], function ( $ ) {
-			return factory( $, window, document );
-		} );
-	}
-	else if ( typeof exports === 'object' ) {
-		// CommonJS
-		var jq = require('jquery');
-		var cjsRequires = function (root, $) {
-			if ( ! $.fn.dataTable ) {
-				require('datatables.net-se')(root, $);
-			}
-
-			if ( ! $.fn.dataTable.FixedColumns ) {
-				require('datatables.net-fixedcolumns')(root, $);
-			}
-		};
-
-		if (typeof window !== 'undefined') {
-			module.exports = function (root, $) {
-				if ( ! root ) {
-					// CommonJS environments without a window global must pass a
-					// root. This will give an error otherwise
-					root = window;
-				}
-
-				if ( ! $ ) {
-					$ = jq( root );
-				}
-
-				cjsRequires( root, $ );
-				return factory( $, root, root.document );
-			};
-		}
-		else {
-			cjsRequires( window, jq );
-			module.exports = factory( jq, window, window.document );
-		}
-	}
-	else {
-		// Browser
-		factory( jQuery, window, document );
-	}
-}(function( $, window, document, undefined ) {
-'use strict';
-var DataTable = $.fn.dataTable;
-
-
-
-
-return DataTable;
-}));