The terminal substrate in src/substrate/ and its compiled substrate/ outputs
was originally moved without runtime changes from @termfleet/terminal, authored
by Volter AI, and is now maintained in this package.
Original source: https://github.com/volter-ai/termfleet
Source revision: d6b28d9866a5efee5a8ba698fb47ccf8232b299d

These files remain licensed under Apache License 2.0; see LICENSE-SUBSTRATE.
The session-roll implementation and its reference invariants were adapted from
Termfleet core agent-session-roll at 089d58c48e34c609a31dfa8ce8f7111b6dff90c0,
also authored by Volter AI; subsequent native integration is owned here.
The containing package's alternative MIT license does not relicense this code.

Existing .termfleet paths, environment variables, tmux ownership markers, and
public wire names are compatibility contracts and are intentionally retained.