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/modules/asl/routes/index.ts

@@ -0,0 +1,57 @@
+/**
+ * ASL模块路由注册
+ */
+
+import { FastifyInstance } from 'fastify';
+import * as projectController from '../controllers/projectController.js';
+import * as literatureController from '../controllers/literatureController.js';
+
+export async function aslRoutes(fastify: FastifyInstance) {
+  // ==================== 筛选项目路由 ====================
+  
+  // 创建筛选项目
+  fastify.post('/projects', projectController.createProject);
+  
+  // 获取用户的所有项目
+  fastify.get('/projects', projectController.getProjects);
+  
+  // 获取单个项目详情
+  fastify.get('/projects/:projectId', projectController.getProjectById);
+  
+  // 更新项目
+  fastify.put('/projects/:projectId', projectController.updateProject);
+  
+  // 删除项目
+  fastify.delete('/projects/:projectId', projectController.deleteProject);
+
+  // ==================== 文献管理路由 ====================
+  
+  // 导入文献（JSON）
+  fastify.post('/literatures/import', literatureController.importLiteratures);
+  
+  // 导入文献（Excel上传）
+  fastify.post('/literatures/import-excel', literatureController.importLiteraturesFromExcel);
+  
+  // 获取项目的文献列表
+  fastify.get('/projects/:projectId/literatures', literatureController.getLiteratures);
+  
+  // 删除文献
+  fastify.delete('/literatures/:literatureId', literatureController.deleteLiterature);
+
+  // ==================== 筛选任务路由（后续实现） ====================
+  
+  // TODO: 启动筛选任务
+  // fastify.post('/projects/:projectId/screening/start', screeningController.startScreening);
+  
+  // TODO: 获取筛选进度
+  // fastify.get('/tasks/:taskId/progress', screeningController.getProgress);
+  
+  // TODO: 获取筛选结果
+  // fastify.get('/projects/:projectId/results', screeningController.getResults);
+  
+  // TODO: 审核冲突文献
+  // fastify.post('/results/review', screeningController.reviewConflicts);
+}
+
+
+