feat(asl): Complete Day 5 - Fulltext Screening Backend API Development

- Implement 5 core API endpoints (create task, get progress, get results, update decision, export Excel)
- Add FulltextScreeningController with Zod validation (652 lines)
- Implement ExcelExporter service with 4-sheet report generation (352 lines)
- Register routes under /api/v1/asl/fulltext-screening
- Create 31 REST Client test cases
- Add automated integration test script
- Fix PDF extraction fallback mechanism in LLM12FieldsService
- Update API design documentation to v3.0
- Update development plan to v1.2
- Create Day 5 development record
- Clean up temporary test files

backend/src/common/cache/CacheAdapter.ts

@@ -83,3 +83,5 @@ export interface CacheAdapter {
 
 
 
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backend/src/common/cache/CacheFactory.ts

@@ -106,3 +106,5 @@ export class CacheFactory {
 
 
 
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backend/src/common/cache/index.ts

@@ -58,3 +58,5 @@ export const cache = CacheFactory.getInstance()
 
 
 
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