[Enhancement]: Add dedicated Integration section to docs #408
Description
Page or section
https://docs.stacklok.com/toolhive
What could be better?
Improve discoverability of our enterprise integrations (Okta, Entra, Vault, ngrok, etc.) by centralizing documentation. Move existing guides (e.g., Vault and ngrok) into a single integrations section and add first-class IdP documentation for Okta and Entra, which currently only exists in blog posts.
Proposed improvement
No response
Additional context
No response