### Added
- Runtime now ships the missed standalone email comms wrapper/export layer for host-local operator surfaces:
  - `abstractruntime.integrations.abstractcore.comms_facade`
  - package-level email helper exports from `abstractruntime.integrations.abstractcore`

### Changed
- Host-facade email helpers now delegate through Runtime's own comms facade instead of importing `abstractcore.tools.comms_tools` directly in the facade method body.
- Runtime docs and AI-readable `llms.txt` / `llms-full.txt` now describe the standalone email comms facade/export layer alongside the existing host facade, Telegram wrappers, and durable run-owned comms sends.
