docs: update roadmap to reflect completed Docker and database features

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

README.md

@@ -132,8 +132,8 @@ pytest tests/ --cov=SPARC --cov-report=term-missing
 - [X] Company performance estimation
 - [ ] Multi-company batch processing
 - [ ] FastAPI web service wrapper
-- [ ] Docker containerization
+- [X] Docker containerization
-- [ ] Results persistence (database)
+- [X] Results persistence (database)
 - [ ] Visualization dashboard
 
 ## Development