A steered turn's contract — pre-steer output above the correction bubble,
post-steer output and the settled reply below it — was fixed across
several PRs (#73793/#83151 class, settle fixes) but only covered piecewise:
the mid-turn insert as a unit, the settle math as a unit. Nothing drove the
real stream reducer through a whole steered turn, and nothing asserted the
durable-row hydration renders the same order after reload.
Two suites close that:
- steer-arrival-order: full event sequences through useMessageStream's real
handler + the real optimistic insert — single steer with tool activity,
steer racing message.complete, double steer in one turn.
- steered-turn-hydration-order: toChatMessages over persisted row shapes
copied from a real state.db steered turn, including a tool result that
lands after the correction row.
Brooklyn Nicholson
b2f345f540