* chore: run backend tests concurrently
* fix: mock app server create database
* chore: using @swc/jest instead of ts-jest
* chore: create test database
* chore: database distributor
* fix: test collection manager
* fix: test
* chore: to use Jest.mock, change the formatter to the commonjs module
* chore: db acquire
* chore: github action
* fix: pg test action
* chore: formatter
* chore: jest workaround
* fix: mysql test
* chore: mysql github action
* chore: clean storage
* chore: gitignore
* chore: max workers
