ADR-0087 exemption (type-surface-only): A published return type moves off an erased `any` onto the kernel's own `ExecutionContext`: no metadata key is removed, renamed or re-shaped, this diff touches no `packages/spec/**` path and no ADR-0087 shape surface (no `*.zod.ts`, no `packages/spec/src/contracts/**` entry, no object definition), and nothing exists for `objectstack migrate meta` to rewrite. The affected party is a TypeScript consumer and the delivery channel is the compiler at their own call site, which reaches every one of them rather than the subset who read release notes.