## Summary
- Add a provider-specific guide for configuring Google as an OIDC
provider
- Document refresh token setup via CODER_OIDC_AUTH_URL_PARAMS
- Add page to docs navigation under Users → OIDC Authentication
## Test plan
- Docs site builds: `docs/admin/users/oidc-auth/google.md` renders
- Nav shows 'Google' under OIDC Authentication
- Links to OIDC overview and refresh tokens work
Fixes#13508
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Co-authored-by: Atif Ali <atif@coder.com>
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