feat: WWJCloud 企业级全栈框架 v0.3.5 完整更新

🚀 核心更新：
- ✅ 完善 NestJS 企业级架构设计
- ✅ 优化配置中心和基础设施层
- ✅ 增强第三方服务集成能力
- ✅ 完善多租户架构支持
- 🎯 对标 Java Spring Boot 和 PHP ThinkPHP

📦 新增文件：
- wwjcloud-nest 完整框架结构
- Docker 容器化配置
- 管理后台界面
- 数据库迁移脚本

🔑 Key: ebb38b43ec39f355f071294fd1cf9c42

admin/public/ueditor/dialogs/formula/formula.js

@@ -0,0 +1,147 @@
+function preg_quote(str, delimiter) {
+    // Quote regular expression characters plus an optional character
+    //
+    // version: 1107.2516
+    // discuss at: http://phpjs.org/functions/preg_quote
+    // +   original by: booeyOH
+    // +   improved by: Ates Goral (http://magnetiq.com)
+    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
+    // +   bugfixed by: Onno Marsman
+    // +   improved by: Brett Zamir (http://brett-zamir.me)
+    // *     example 1: preg_quote("$40");
+    // *     returns 1: '\$40'
+    // *     example 2: preg_quote("*RRRING* Hello?");
+    // *     returns 2: '\*RRRING\* Hello\?'
+    // *     example 3: preg_quote("\\.+*?[^]$(){}=!<>|:");
+    // *     returns 3: '\\\.\+\*\?\[\^\]\$\(\)\{\}\=\!\<\>\|\:'
+    return (str + '').replace(new RegExp('[.\\\\+*?\\[\\^\\]$(){}=!<>|:\\' + (delimiter || '') + '-]', 'g'), '\\$&');
+}
+
+function loadScript(url, cb) {
+    var script;
+    script = document.createElement('script');
+    script.src = url;
+    script.onload = function () {
+        cb && cb({isNew: true})
+    };
+    document.getElementsByTagName('head')[0].appendChild(script);
+}
+
+var Formula = {
+    mode: 'plain',
+    latexeasy: null,
+    init: function () {
+        // console.log('Formula.init')
+        Formula.initMode();
+        Formula.initEvent();
+        Formula.initSubmit();
+    },
+    renderPlain: function () {
+        var $preview = $('#preview');
+        var value = $('#editor').val();
+        if (!value) {
+            $preview.hide();
+            return;
+        }
+        value = encodeURIComponent(value);
+        var formulaConfig = editor.getOpt('formulaConfig');
+        var src = formulaConfig.imageUrlTemplate.replace(/\{\}/, value);
+        $('#previewImage').attr('src', src);
+        $preview.show();
+    },
+    setValuePlain: function (value) {
+        $('#editor').val(value);
+        Formula.renderPlain();
+    },
+    setValueLive: function (value) {
+        if (!Formula.latexeasy) {
+            setTimeout(function () {
+                Formula.setValueLive(value);
+            }, 100);
+            return;
+        }
+        Formula.latexeasy.call('set.latex', {latex: value});
+    },
+    initMode: function () {
+        var formulaConfig = editor.getOpt('formulaConfig');
+        if ('live' === formulaConfig.editorMode) {
+            $('#liveEditor').attr('src', formulaConfig.editorLiveServer + '/editor');
+            $('#modeLive').show();
+            Formula.mode = 'live';
+        } else {
+            $('#modePlain').show();
+            Formula.mode = 'plain';
+        }
+        var img = editor.selection.getRange().getClosedNode();
+        if (img && img.getAttribute('data-formula-image') !== null) {
+            var value = img.getAttribute('data-formula-image');
+            if (value) {
+                Formula.setValue(decodeURIComponent(value));
+            }
+        }
+    },
+    setValue: function (value) {
+        switch (Formula.mode) {
+            case 'plain':
+                Formula.setValuePlain(value);
+                break;
+            case 'live':
+                Formula.setValueLive(value);
+                break;
+        }
+    },
+    getValue: function (cb) {
+        switch (Formula.mode) {
+            case 'plain':
+                cb($.trim($('#editor').val()));
+                break;
+            case 'live':
+                Formula.latexeasy.call('get.latex', {}, function (data) {
+                    cb(data.latex);
+                });
+                break;
+        }
+    },
+    initEvent: function () {
+        var changeTimer = null, le;
+        switch (Formula.mode) {
+            case 'plain':
+                // console.log('Formula.initEvent');
+                $('#editor').on('change keypress', function () {
+                    changeTimer && clearTimeout(changeTimer);
+                    changeTimer = setTimeout(function () {
+                        Formula.renderPlain();
+                    }, 1000);
+                });
+                $('#inputDemo').on('click', function () {
+                    $('#editor').val('f(a) = \\frac{1}{2\\pi i} \\oint\\frac{f(z)}{z-a}dz');
+                    Formula.renderPlain();
+                });
+                break;
+            case 'live':
+                var formulaConfig = editor.getOpt('formulaConfig');
+                loadScript(formulaConfig.editorLiveServer + '/vendor/LatexEasyEditor/editor/sdk.js', function () {
+                    le = new window.LatexEasy(document.getElementById('liveEditor'));
+                    le.on('ready', function () {
+                        Formula.latexeasy = le;
+                    });
+                    le.init();
+                });
+                break;
+        }
+    },
+    initSubmit: function () {
+        dialog.onclose = function (t, ok) {
+            if (!ok) {
+                return true;
+            }
+            // console.log('onclose', t, ok);
+            Formula.getValue(function (value) {
+                editor.execCommand('formula', value);
+                editor.fireEvent('saveScene');
+                dialog.close(false);
+            });
+            return false;
+        };
+    }
+};