update docs and config parsing

combined/config.yaml.example

@@ -86,6 +86,9 @@ server:
     issuer: "https://example.com/oauth2"
     localAuthDisabled: false
     signKeyRefreshEnabled: false
+    # MFA session settings (applies when TOTP is enabled for an account)
+    # mfaSessionMaxLifetime: "24h"  # Max duration for an MFA session from creation
+    # mfaSessionIdleTimeout: "1h"   # MFA session expires after this idle period
     # OAuth2 redirect URIs for dashboard
     dashboardRedirectURIs:
       - "https://app.example.com/nb-auth"
@@ -93,6 +96,9 @@ server:
     # OAuth2 redirect URIs for CLI
     cliRedirectURIs:
       - "http://localhost:53000/"
+    # OAuth2 post-logout redirect URIs for dashboard (RP-initiated logout)
+    # dashboardPostLogoutRedirectURIs:
+    #   - "https://app.example.com/"
     # Optional initial admin user
     # owner:
     #   email: "admin@example.com"