add created_at and updated_at to access page user lists

[charliepark]

This builds off of an update to the API in oxidecomputer/omicron#9958, and adds the created and updated timestamps on the various Access pages.

#3095 does not include these columns, but those will be easy to add once oxidecomputer/omicron#9958 has been merged.

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Project	Deployment	Actions	Updated (UTC)
console	Ready	Preview	Mar 4, 2026 11:35pm

[david-crespo]

This doesn't make sense to me as the place to display this info. I would expect to see this on the user and group list views (which we don't have yet).

Fundamentally this table is a list of role assignments, while these timestamps are created and update on the user/group. If these had timestamps I would expect them to be when the roles were assigned. We don't have that, and it wouldn't be very useful anyway since you have to PUT the entire set of assignments every time, which means every assignment in the list would always have the same timestamp.

[charliepark]

This page will be moot as soon as we have #3106 in (which adds the user / group tabs), so I'm going to close this one. Once oxidecomputer/omicron#9958 is in, I'll update #3106 to have the appropriate columns.