dd6dd99cea
Round 16 audit follow-up. Three small fixes: 1. local/recipes/system/redbear-authd/source/src/main.rs:328 — the validation-mode spawn-reaper thread did 'let _ = child.wait();' silently dropping the session child's exit status. Replaced with 'match' that eprintln-logs both successful exit status and wait failure (with errno). Operators can now see when the session child exits abnormally in validation mode. 2. local/recipes/system/redbear-dnsd/source/src/main.rs:111 — the loopback DNS responder did 'let _ = socket.send_to(&reply, &src);' silently. Replaced with 'if let Err(e) = socket.send_to(...)' that eprintln-logs the failure with the source peer address. Previously DNS clients could fail to receive a valid reply with no visible error. 3. local/docs/SUPERSEDED-DOC-LOG.md — appended Round 16 entries documenting the authd/dnsd fixes plus the Round-16 audit findings that did not require code changes (acpi-rs AML 41 panics classified as internal-invariant, pcid panics already have messages, all stale CONFIG refs already retired, USB-daemon let _ = is in host-only test paths, sessiond can_* for sleep is honest stub, Mesa CS ioctl numbers verified no drift). 3 files changed, +27/-2.