docs: Update README with Option A background data fetching docs

- Added reference to BACKGROUND_DATA_FETCHING_PLAN.md with host-provided activeDid architecture
- Added reference to new DATABASE_ACCESS_CLARIFICATION.md document
- Provides clear documentation links for the Option A implementation approach

README.md

@@ -534,6 +534,8 @@ MIT License - see [LICENSE](LICENSE) file for details.
 - **Verification Checklist**: [doc/VERIFICATION_CHECKLIST.md](doc/VERIFICATION_CHECKLIST.md) - Regular verification process
 - **UI Requirements**: [doc/UI_REQUIREMENTS.md](doc/UI_REQUIREMENTS.md) - Complete UI component requirements
 - **UI Integration Examples**: [examples/ui-integration-examples.ts](examples/ui-integration-examples.ts) - Ready-to-use UI components
+- **Background Data Fetching Plan**: [doc/BACKGROUND_DATA_FETCHING_PLAN.md](doc/BACKGROUND_DATA_FETCHING_PLAN.md) - Host-provided activeDid architecture
+- **Database Access Clarification**: [doc/DATABASE_ACCESS_CLARIFICATION.md](doc/DATABASE_ACCESS_CLARIFICATION.md) - Option A implementation details
 
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