feat:New Loan Account – Details Step Page

[revanthkumarJ]

Fixes - Jira-#528

WhatsApp.Video.2025-09-03.at.4.50.38.PM.mp4

[Nagarjuna0033]

@revanthkumarJ See These changes going to break, see you are observing the network, and at the same time you are calling the other function in the init block concurrently so what is user doesn't have any internet connection still this will hit the Api and throws error which not handled properly in this case. and also validation is not up to mark. there is a field externalId you are just changing the value by invoking action is emojis and other invalid characters are allowed? if not you need to validate all those which is not handled in this pr and in upcoming prs also and why don't you separate the validations from onHandle function you are just implementing the logic in the same block which will be not readable. for example you ae doing like this

is NewLoanAccountAction.OnExternalIdChange -> {
                mutableStateFlow.update {
                    it.copy(
                        externalId = action.value,
                    )
                }
            }

but you can do like this

is NewLoanAccountAction.OnExternalIdChange -> handleExternalIdChange()

in the function you can validate every edge case and udpate the errors if any.

validations should be correctly handled and try out the feature in all cases like if user doesn't have internet or any other exception

write previews for all states