DB cleanup recepie

**The setup**

- Dedicated folder or even repo
- Super simple example app in one file - Add & delete order. One column should be unique
- Single test: Delete order, ensure it was deleted. X100 times (run in a loop to test.each)
- 20 tables with relationship

**The options**

- Option1: Delete all tables on beforeEach
- Option2: Delete on global teardown occasionally (once a day or with random)
- Option3: Transactions

**Checks and conclusions**

- The performance of each option under 100 tests
- When cleaning, what is faster: Delete or Truncate
- The performance of a single process (--run-in-band) vs max-1 processes
- The RAM impact of having 6 Postgres vs only 1