[CORE-584] Show Linked NIH eRA Commons ID and Settings Link in Terra

[kevinmarete]

Jira Ticket: https://broadworkbench.atlassian.net/browse/CORE-584

What

• Display the user’s linked eRA Commons ID in the Terra UI, under their preferred email.
• If no eRA Commons ID is linked, show "none".
• Add a direct link in Terra to the NIH “Linked Identities” settings page for easier account management.

Why

• Users currently have no clear way to see if their NIH identity is linked or how to fix it. This update helps users check their linked identity directly in Terra and easily access the NIH page to manage their connections. It makes the process faster and reduces confusion.

Testing strategy

• Unit Testing
  • Added Unit tests to cover the use-cases
• Manual Testing
  • Check that the eRA Commons ID shows up if it’s linked, or displays "none" if not.
  • Make sure the link goes to the correct NIH settings page (different URLs for dev/staging and prod).

Screens

Before

After