kyleandClaude Opus 5.5
5465946d98
A batch carries the Mattermost user id of each message; the turn's speaker is the username of the one user who wrote all of it (Client::username, kept in a map on the event loop), and None for two or more people or a failed lookup. The turn's text is unchanged. Checks: reference replayed from the task text on a fresh ref-02 worktree with its own build dir, byte-identical; make gate ok with 1148 tests (1138 + 10); /tmp unchanged around both gate runs; 21 mutations, all caught; new tests stressed 40 times under load, no failure; every before block found once at ref 02; no chat-template tags. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>