TS-1537: Introducing ApprovalStatusReason

[martapederiva]

Link to JIRA ticket

https://hackney.atlassian.net/browse/TS-1537

Describe this PR

What is the problem we're trying to solve

BTA now needs to store the reason for which a Contract might be in PendingReapproval status.

What changes have we introduced

A new field in the appropriate places.

Follow up actions after merging PR

Update version on listener and API and changes to propagate and retrieve the new field.

[Duslerke]

I find it confusing that there're 2 identical Domain level objects:

1. Hackney.Shared.HousingSearch/Domain/Asset/Contract.cs
2. Hackney.Shared.HousingSearch/Domain/Contract/Contract.cs

I see a Factory update that touches on one of them (1st one):

public Domain.Asset.Contract ToDomain(this QueryableAssetContract entity) {...}

But not there's no Factory update to the 2nd one. How come? Is it that the 2nd model isn't used, or is it that it doesn't have non-Domain layer equivalents?

[martapederiva]

Is it that the 2nd model isn't used, or is it that it doesn't have non-Domain layer equivalents?

Yeah, the Contract/Contract is not really used. I reckon it was created for future use, we update it for coherence, likely useless but I don't want to find out now 😅 (Contracts API doesn't use the NuGet packages structure for its model)