Backend: add autoSignup field to OidcConfig, ClickHouse schema, repository,
and admin controller. Gate OIDC login when auto-signup is disabled and user
is not pre-created (returns 403).
Frontend: add OIDC admin page with full CRUD (save/test/delete), role-gated
Admin nav link parsed from JWT, and matching design system styles.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
OIDC provider settings (issuer, client ID/secret, roles claim) are
now stored in ClickHouse and managed via admin REST API at
/api/v1/admin/oidc. This allows runtime configuration from the UI
without server restarts.
- New oidc_config table (ReplacingMergeTree, singleton row)
- OidcConfig record + OidcConfigRepository interface in core
- ClickHouseOidcConfigRepository implementation
- OidcConfigAdminController: GET/PUT/DELETE config, POST test
connectivity, client_secret masked in responses
- OidcTokenExchanger: reads config from DB, invalidateCache()
on config change
- OidcAuthController: always registered (no @ConditionalOnProperty),
returns 404 when OIDC not configured
- Startup seeder: env vars seed DB on first boot only, then admin
API takes over
- HOWTO.md updated with admin OIDC config API examples
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
