- Add intelligent restart scripts for frontend/backend services
- Implement GCP integration with localhost emulation (Cloud Storage, Cloud Tasks)
- Add dependency injection architecture with abstract interfaces
- Create research aggregation API querying 5 external sources (PubMed, OpenAlex, Crossref, ClinicalTrials.gov, NIH RePORTER)
- Add concurrent processing with intelligent ranking and unified response format
- Include complete Postman collection and comprehensive test suite
- Fix PostgreSQL integration and database migrations
- Add task processing system with queue management
- Implement file upload services with presigned URL support
- Create comprehensive documentation (RESEARCH_API_GUIDE.md, LOCAL_DEVELOPMENT.md)

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Co-Authored-By: Claude <noreply@anthropic.com>