Refactor all tests names to include EP name

Tests naming should follow this approach

```
describe('GET /user/:userId/cats', () => {
  it('1')
  it('2')
})
```

I think cursor might be a great help here

Some e2e tests do not directly test endpoint but rather do custom service calls - these can’t be refactored like that.

# Acceptance criteria
- all tests matching the description have describe blocks added with EP name