change identity lifecycle to account lifecycle

[dickhardt]

account is the term used by RPs that the identity service is managing

[aaronpk]

For the notes, this was discussed on the Sep 16 call.

[gffletch]

We might want to add some additional context around "Session Lifecycle" and "Account Lifecycle". I still have a todo item to add the session management model to the levels doc. For Account Lifecycle, I think somewhere we need to define the term "Account" because it is not intuitively defined.

The term 'Account' is used to cover the identity of the enterprise IdP user at the Relying Party (RP). Account Lifecycle therefore represents the lifecycle of the enterprise IdP user's identity at the RP.

Maybe that's too much saying the same thing... ChatGPT recommends...

An Account is the representation of an enterprise Identity Provider (IdP) user’s identity at a Relying Party (RP).
The Account Lifecycle refers to the stages of existence of the enterprise IdP user’s account at the RP.

[dickhardt]

@gffletch -- agree that describing both session and account are needed.