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/package.json

@@ -31,6 +31,7 @@
     "@fastify/multipart": "^9.2.1",
     "@prisma/client": "^6.17.0",
     "@types/form-data": "^2.2.1",
+    "ajv": "^8.17.1",
     "axios": "^1.12.2",
     "dotenv": "^17.2.3",
     "fastify": "^5.6.1",
@@ -42,6 +43,7 @@
     "prisma": "^6.17.0",
     "tiktoken": "^1.0.22",
     "winston": "^3.18.3",
+    "xlsx": "^0.18.5",
     "zod": "^4.1.12"
   },
   "devDependencies": {