- cleaned up script run tests locally
- temporarily added script to automate test & coverage reporting
- reorganized unitary tests
- migration in progress to use single-column primary-key for main entities
- intermediate backup ; work in progress

- reorganized code spliting database models, enumerations, and operation methods
- separated unitary tests per entity and defined order between them
- separated unitary test for fasthasher
- modev old code to separate folder

- progress on migration to CockroachDB (partial)

- updatd EventsCollector get_events
- added field created_at in ContextModel
- added ChangeFeedClient
- WIP arrangements in unitary tests
- WIP arrangements in ServicerImpl
- arranged run_tests_locally script

- reviewing integration with CockroachDB
- reviewing context REST API
- reviewing database schema
- reviewing code