OIDC configuration is already fully database-backed (oidc_config table, admin API, OidcConfigRepository). Remove the redundant env var binding (SecurityProperties.Oidc), the env-to-DB seeder (oidcConfigSeeder), and the OIDC section from application.yml. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>