1667784a3c
* docs(worker): design kv cache * feat(worker): add scoped kv facade * refactor(vm): expose async host proxy * feat(worker): inject kv cache into sandbox * feat(worker): scope kv cache executions * test(worker): enforce workspace-qualified lookup * feat(worker): add kv editor types * fix(worker): harden kv cache boundaries * fix(worker): harden kv cache resource limits