fix(jitsi): require targeted peer frames for clients

internal/engine/engine.go

@@ -57,7 +57,11 @@ type Config struct {
 	DNSServer  string
 	ProxyAddr  string
 	ProxyPort  int
-	Refresh    func(ctx context.Context) (Credentials, error)
+	// RequireTargetedPeer asks engines that multiplex room-wide messages to
+	// ignore single-peer broadcast frames until the remote has addressed this
+	// session's local epoch.
+	RequireTargetedPeer bool
+	Refresh             func(ctx context.Context) (Credentials, error)
 }
 
 // Session is the engine-level runtime handle. It is shaped to match what