fix: re-derive the turn number from the log at turn open

An out-of-band zero-step turn (durable command lifecycle on an idle log) advances the log's turn numbering behind ReactLoopAgent's cached lastTurn, so the next real turn reused a stale number and tripped the session invariant (turn/start expected N, got 1) — hanging the TUI after any idle slash command. The log is the numbering authority: take max(cached, logged) + 1 at open. The command-goal stub's inject helper also gains the one-shot injection turn wrap the real agent performs, restoring turn enclosure in its log assertions.
2026-07-28 01:09:54 +08:00
parent 2b2840a6e1
commit b1bcb428a7
2 changed files with 10 additions and 2 deletions
@@ -312,7 +312,11 @@ export class ReactLoopAgent implements Agent {
    this.abort = controller
    this.acceptsNextStep = true
    const signal = controller.signal
-    const turn = this.lastTurn + 1
+    // The log is the turn-number authority: out-of-band zero-step turns
+    // (command lifecycle on an idle log) advance it behind this cached
+    // counter, so re-derive the successor at open instead of trusting it.
+    const loggedLast = this.session.events.findLast(event => event.type === 'turn/start')?.data.turn ?? 0
+    const turn = Math.max(this.lastTurn, loggedLast) + 1
    let step = 0
    let opened = false
    let reason: TurnEndReason = { kind: 'completed' }