refactor(asl): ASL frontend architecture refactoring with left navigation

- feat: Create ASLLayout component with 7-module left navigation
- feat: Implement Title Screening Settings page with optimized PICOS layout
- feat: Add placeholder pages for Workbench and Results
- fix: Fix nested routing structure for React Router v6
- fix: Resolve Spin component warning in MainLayout
- fix: Add QueryClientProvider to App.tsx
- style: Optimize PICOS form layout (P+I left, C+O+S right)
- style: Align Inclusion/Exclusion criteria side-by-side
- docs: Add architecture refactoring and routing fix reports

Ref: Week 2 Frontend Development
Scope: ASL module MVP - Title Abstract Screening

backend/src/common/utils/jsonParser.ts

@@ -20,10 +20,37 @@ export interface ParseResult<T = any> {
  * 3. 带后缀：{ "key": "value" }\n\n以上是提取结果
  * 4. 代码块：```json\n{ "key": "value" }\n```
  */
+/**
+ * 清理JSON字符串，修复常见格式问题
+ * @param text - 原始文本
+ * @returns 清理后的文本
+ */
+function cleanJSONString(text: string): string {
+  let cleaned = text;
+  
+  // 1. 替换中文引号为ASCII引号（国际模型常见问题）
+  cleaned = cleaned.replace(/"/g, '"');  // 中文左引号
+  cleaned = cleaned.replace(/"/g, '"');  // 中文右引号
+  cleaned = cleaned.replace(/'/g, "'");  // 中文左单引号
+  cleaned = cleaned.replace(/'/g, "'");  // 中文右单引号
+  
+  // 2. 替换全角逗号、冒号为半角
+  cleaned = cleaned.replace(/，/g, ',');
+  cleaned = cleaned.replace(/：/g, ':');
+  
+  // 3. 移除零宽字符和不可见字符
+  cleaned = cleaned.replace(/[\u200B-\u200D\uFEFF]/g, '');
+  
+  return cleaned;
+}
+
 export function extractJSON(text: string): string | null {
+  // 预处理：清理常见格式问题
+  const cleanedText = cleanJSONString(text);
+  
   // 尝试1：直接查找 {...} 或 [...]
   const jsonPattern = /(\{[\s\S]*\}|\[[\s\S]*\])/;
-  const match = text.match(jsonPattern);
+  const match = cleanedText.match(jsonPattern);
   
   if (match) {
     return match[1];
@@ -31,7 +58,7 @@ export function extractJSON(text: string): string | null {
   
   // 尝试2：查找代码块中的JSON
   const codeBlockPattern = /```(?:json)?\s*\n?([\s\S]*?)\n?```/;
-  const codeMatch = text.match(codeBlockPattern);
+  const codeMatch = cleanedText.match(codeBlockPattern);
   
   if (codeMatch) {
     return codeMatch[1].trim();