🎨 优化对话消息前端渲染（未完成存在bug）

Signed-off-by: Echo <1711788888@qq.com>

web-app/src/App.tsx

@@ -11,6 +11,7 @@ import ProfilePage from './pages/ProfilePage'
 import CharacterManagePage from './pages/CharacterManagePage'
 import PresetManagePage from './pages/PresetManagePage'
 import WorldbookManagePage from './pages/WorldbookManagePage'
+import RegexScriptManagePage from './pages/RegexScriptManagePage'
 import AdminPage from './pages/AdminPage'
 
 function App() {
@@ -29,6 +30,7 @@ function App() {
         <Route path="/characters" element={<CharacterManagePage />} />
         <Route path="/presets" element={<PresetManagePage />} />
         <Route path="/worldbooks" element={<WorldbookManagePage />} />
+        <Route path="/regex-scripts" element={<RegexScriptManagePage />} />
         <Route path="/admin" element={<AdminPage />} />
       </Routes>
     </BrowserRouter>

web-app/src/components/MessageContent.tsx

@@ -173,13 +173,10 @@ export default function MessageContent({ content, role, onChoiceSelect }: Messag
   useEffect(() => {
     console.log('[MessageContent] 原始内容:', content)
 
-    // 提取 markdown 代码块中的 HTML，并从原始内容中移除代码块标记
-    // 支持 ```html 和不带标识符的 ``` 包裹（后者在内容含 HTML 标签时识别为 HTML 块）
+    // 提取 markdown 代码块中的 HTML（仅识别 ```html 标识符的代码块）
     let processedContent = content
     let remainingContent = content
     let isHtmlCodeBlock = false
-    const htmlTagRegex = /<[a-zA-Z][^>]*>/
-    // 先尝试匹配 ```html 代码块
     const explicitHtmlRegex = /```html\s*([\s\S]*?)```/gi
     const htmlCodeBlocks: string[] = []
     let htmlMatch
@@ -195,24 +192,6 @@ export default function MessageContent({ content, role, onChoiceSelect }: Messag
       isHtmlCodeBlock = true
       console.log('[MessageContent] 提取到 ```html 代码块:', processedContent)
       console.log('[MessageContent] 剩余内容:', remainingContent)
-    } else {
-      // 尝试匹配无语言标识的 ``` 代码块，内容含 HTML 标签时也视为 HTML 块
-      const genericCodeRegex = /```\s*\n?([\s\S]*?)```/g
-      const genericBlocks: string[] = []
-      let genericMatch
-      while ((genericMatch = genericCodeRegex.exec(content)) !== null) {
-        const blockContent = genericMatch[1].trim()
-        if (htmlTagRegex.test(blockContent)) {
-          genericBlocks.push(blockContent)
-        }
-      }
-      if (genericBlocks.length > 0) {
-        processedContent = genericBlocks.join('\n')
-        remainingContent = content.replace(/```\s*\n?[\s\S]*?```/g, '').trim()
-        isHtmlCodeBlock = true
-        console.log('[MessageContent] 提取到通用 HTML 代码块:', processedContent)
-        console.log('[MessageContent] 剩余内容:', remainingContent)
-      }
     }
 
     // 解析状态面板