- Add null check before updating OAuth settings to prevent calling methods on null
- Apply couldBeEnabled() validation for all settings in bulk update (not just instant save)
- Disable OAuth providers that fail validation and collect error messages
- Surface all validation errors to the user instead of silently failing
- Update oauth_settings_map with fresh data after saving each setting
This ensures bulk updates follow the same validation logic as instant-save paths
and prevents bypassing model validation by directly calling update.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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