Add end user's IdP information to host vitals

[noahtalerman]

Goal

User story
As an IT admin,
I want to add end user's info (e.g. email, username, role, department) from the identity provider (IdP) to host vitals
so that I can identify which end user is assigned to each host.

Key result

Fleet users can add host vitals from their IdP as variables in configuration profiles

Original requests

21028

Context

• Product designer: @marko-lisica

@marko-lisica: LDAP research document

Changes

Product

• [ ] UI changes: Figma link
• [ ] CLI (fleetctl) usage changes: No changes.
• [ ] YAML changes: No changes.
• [ ] REST API changes: #23839
• [ ] Fleet's agent (fleetd) changes: No changes.
• [ ] Activity changes: TODO
• [ ] Permissions changes: TODO
• [ ] Changes to paid features or tiers: Available in Fleet Premium only.
• [ ] Other reference documentation changes: No changes.
• [ ] Once shipped, requester has been notified

Engineering

• [ ] Feature guide changes: #23901
  • Includie steps on how to test the connection and user attributes mapping
• [ ] Database schema migrations: TODO
• [ ] Load testing: TODO

ℹ️  Please read this issue carefully and understand it. Pay special attention to UI wireframes, especially "dev notes".

QA

Risk assessment

• Requires load testing: TODO
• Risk level: Low / High TODO
• Risk description: TODO

Manual testing steps

1. Step 1
2. Step 2
3. Step 3

Testing notes

Confirmation

1. [ ] Engineer (@____): Added comment to user story confirming successful completion of QA.
2. [ ] QA (@____): Added comment to user story confirming successful completion of QA.

[noahtalerman]

Hey @marko-lisica, left some feedback in a Loom video here.

[nonpunctual]

related: https://github.com/fleetdm/fleet/issues/21028

[noahtalerman]

FYI @marko-lisica I presented wireframes to Mike and got feedback that I think we want to address when we come back this story.

Feedback and Gong recording are in this Google doc: https://docs.google.com/document/d/1CVWjE23RiUIpR7b4orojkxFp4gEzr4qDLmSv-TNxf6M/edit?tab=t.0

[JoStableford]

Linked to Unthread ticket:

Conversation #3476