- Revised the README files for shared data and main data layers to improve clarity and structure.
- Consolidated documentation on shared data types and API types, removing the now-deleted `api-design-guidelines.md`.
- Streamlined directory structure descriptions and updated links to relevant documentation.
- Enhanced quick reference sections for better usability and understanding of the data architecture.
- Created a CODEOWNERS file to specify ownership for migrations and data directories.
- Assigned ownership to @0xfullex for the specified paths to streamline code review and management.