chore(vendor): re-carry patches and adapt src to interchange 4cc6972

Verbatim adoptions of mime/mailbox/harness and workflow-host's narrow subset; types runtime split carried with ledger markers; inference's 9 commits merged with 3-way-resolved carries; storage-isogit e75eee2 verified safe (no first-party sync.request/statePushed/createStatePack/undeploy use); reasoning-effort c8be7e9 adopted; crypto/author/log unchanged. formatSafetyRatingText gains a ledgered compat re-export for the published @corbits/openai-responses dist, which still imports it from @intx/types/runtime.

Author: TheGreatAxios