e2e tests for Calimero SDK and node compatibility

[MatejVukosav]

We should have automated e2e tests to validate calimero SDK and node compatibility.

Tests should involve the client using SDK using login and all admin endpoints.

NB: This issue requires approved solution design first, if you feel like taking a go at it still, first step is to propose design in comments and have it approved. Otherwise we will think of the design and rewrite the issue description properly.

[miraclx]

@fbozic, any chance we can expand e2e tests to account for this?

have a test app that tests against all the functions in the Calimero SDK

[Nathy-bajo]

@antonpaisov @chefsale I want to attempt this, please assign.

[antonpaisov]

Spoke with @Nathy-bajo, unassigning for now.