Deploy main eacf1e7 to prod

Replaces #559, which conflicted.

Model: opus-5-5

internal/middleware/loginguard_test.go

@@ -236,9 +236,9 @@ func TestLoginGuard_SemaphoreBoundsConcurrentVerifications(
 
 		// rendezvousDeadlock is the deadlock guard described below.
 		// It is orders of magnitude longer than any scheduling delay,
-		// so it never decides the result, and well inside script/test's
-		// 30s timeout, so a wedge fails on the assertion instead of
-		// blowing the package timeout.
+		// so it never decides the result, and well inside the 90s
+		// package timeout of the Dockerfile's test phase, so a wedge
+		// fails on the assertion instead of blowing that timeout.
 		rendezvousDeadlock = 5 * time.Second
 	)