fix: world and casino integrity fixes

3 files changed, 9 insertions, 5 deletions

diff --git a/internal/casino/credits.go b/internal/casino/credits.go
index 631a4bc..19364da 100644
--- a/internal/casino/credits.go
+++ b/internal/casino/credits.go
@@ -76,6 +76,10 @@ func walletErrorMessage(err error, context ...string) string {
 // payoutFailedMessage explains a settlement the wallet could not persist:
 // the journal record for the payout stays open, so startup recovery will
 // re-apply the owed amount. Games must NOT announce such a payout as paid.
+// payoutFailedMessage explains a settlement the wallet could not apply right
+// now. This covers both a persistence failure and a credit-cap block (the
+// journal record stays open either way), so it must not assert a persistence
+// failure as the cause. Recovery re-applies the owed amount.
 func payoutFailedMessage() string {
-	return "The house could not process your payout (persistence failure). Your settlement is recorded and will be restored when you return."
+	return "The house could not process your payout right now. Your settlement is recorded and will be restored when you return."
 }
diff --git a/internal/casino/manager.go b/internal/casino/manager.go
index b71e5df..d9b2c3e 100644
--- a/internal/casino/manager.go
+++ b/internal/casino/manager.go
@@ -75,9 +75,9 @@ func (m *Manager) EnsureMachine(roomID int, cfg MachineConfig) *Machine {
 	m.mu.Lock()
 	defer m.mu.Unlock()
 	if machine := m.machines[key]; machine != nil {
-		// DeepEqual (not ==) so the *bool rule fields compare by value;
-		// == would treat every freshly parsed config as different and
-		// discard an idle machine on every room load.
+		// DeepEqual (not ==) compares the config by value and stays correct
+		// as rule structs gain pointer/slice fields; == would panic or, for
+		// a struct with incomparable fields, fail to compile.
 		if reflect.DeepEqual(machine.Config, cfg) {
 			return machine
 		}
diff --git a/internal/casino/money_regression_test.go b/internal/casino/money_regression_test.go
index 31cd0e6..bb8263e 100644
--- a/internal/casino/money_regression_test.go
+++ b/internal/casino/money_regression_test.go
@@ -129,7 +129,7 @@ func TestBlackjackFailedPayoutNotAnnouncedAsPaid(t *testing.T) {
 		if strings.Contains(e.PrivateMessage, "You win! +") {
 			t.Fatalf("announced a successful payout after the wallet rejected it: %q", e.PrivateMessage)
 		}
-		if strings.Contains(e.PrivateMessage, "persistence failure") {
+		if strings.Contains(e.PrivateMessage, "could not process your payout") {
 			return // the failure was explained to the player
 		}
 	}