From a6cf03a6ae98e4fb675da25046d148e92bcf7206 Mon Sep 17 00:00:00 2001
From: historia <[not public]>
Date: Wed, 16 Sep 2026 15:00:46 -0400
Subject: chore: staticcheck and gofmt cleanups

---
 internal/engine/tick.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'internal/engine')

diff --git a/internal/engine/tick.go b/internal/engine/tick.go
index 74b1dcf..63ee6af 100644
--- a/internal/engine/tick.go
+++ b/internal/engine/tick.go
@@ -99,8 +99,11 @@ func (e *Engine) Stop() {
 // before owned state is saved.
 func (e *Engine) StopAndWait() {
 	e.Stop()
+	// Join any in-flight tick: processTick holds tickMu for its whole body,
+	// so acquiring the mutex blocks until the running callback completes;
+	// holding it until return keeps that guarantee for the caller.
 	e.tickMu.Lock()
-	e.tickMu.Unlock()
+	defer e.tickMu.Unlock()
 }
 
 // Tick fires every due subscriber synchronously and returns. Subscribers
-- 
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