docs: correct OAuth persistent config defaults

[zuyua9]

Summary

• Correct ENABLE_OAUTH_PERSISTENT_CONFIG in the SSO troubleshooting guide to match the env configuration reference and SSO guide default (true).
• Clarify when OAuth values come from the database vs environment variables.
• Update the Docker Compose note and troubleshooting summary so false is presented as an explicit env-only choice, not the default.

Why

The troubleshooting page currently says ENABLE_OAUTH_PERSISTENT_CONFIG defaults to false, while both the environment configuration reference and SSO guide document the default as true. This can make operators choose the wrong source of truth when debugging OAuth settings that were previously saved through the Admin Panel.

Checks

• npx prettier --check docs/troubleshooting/sso.mdx

[Classic298]

Thanks for catching the mismatch between this guide and the env-configuration reference.

It can't go in as-is, though, because it aligns both pages on the wrong value. ENABLE_OAUTH_PERSISTENT_CONFIG defaults to false, not true:

ENABLE_OAUTH_PERSISTENT_CONFIG = os.getenv('ENABLE_OAUTH_PERSISTENT_CONFIG', 'False').lower() == 'true'

With the default false, oauth.-prefixed settings are read from environment variables and are not loaded from the database, even when ENABLE_PERSISTENT_CONFIG is true. So env vars stay authoritative for OAuth by default, which is what this page already says. Flipping it to "the database wins by default" would point people debugging OAuth in the wrong direction.

The page that was actually wrong is the env-configuration reference (it listed the default as True); that has been corrected, so both pages now agree on false and the mismatch that prompted this PR is resolved.

Closing for that reason. The comparison table was a good idea, though, feel free to resubmit it with false marked as the default row and we'll take it. Thanks again!