Share provider DNS policy across WebSocket and connection probes, handle bracketed IPv6 literals, and preserve bounded address sets for outbound clients.
Bound SMTP DNS and TCP setup with multi-address fallback. Add opt-in trusted proxy DNS for tunnel upstreams while retaining default IP ACLs and origin isolation.
Document DNS policy boundaries and verify 809 gateway, tunnel, and HTTP regression tests.
Consolidate subscription usage policy enforcement, privacy-safe persistence, and gateway security hardening into one reviewable change.
Includes bounded HTTP and execution envelopes, header and protocol guards, DNS and relay validation, authentication and secret projection hardening, secure backup/install paths, and regression coverage.
Add Bark as a notification-service delivery channel, including encrypted Device Key configuration, server URL/template settings, module status integration, and admin UI support.
elky