M4: Add utility_resolver_cache + utility_name_manual_overrides tables

Spec: TextureHQ/mono#10142, task M4. utility_resolver_cache keyed by sha256(lower(name)|state|domain), stores full contract JSON + resolver_version. utility_name_manual_overrides admin-only table. Grants SELECT on cache to internal_api_consumer; no grants on overrides (admin-only). Blocks on M3 (function references these tables).