- db.Open: delegate to mcdsl/db.Open
- db.Migrate: rewrite migrations as mcdsl/db.Migration SQL strings,
delegate to mcdsl/db.Migrate; keep SchemaVersion via mcdsl
- auth: thin shim wrapping mcdsl/auth.Authenticator, keeps Claims
type (with Subject, AccountType, Roles) for policy engine compat;
delete cache.go (handled by mcdsl/auth); add ErrForbidden
- config: embed mcdsl/config.Base for standard sections (Server with
Duration fields, Database, MCIAS, Log); keep StorageConfig and
WebConfig as MCR-specific; use mcdsl/config.Load[T] + Validator
- WriteTimeout now defaults to 30s (mcdsl default, was 0)
- All existing tests pass (auth tests rewritten for new shim API,
cache expiry test removed — caching tested in mcdsl)
- Net -464 lines
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>