fix: resolve missing users in piped commands and refine TUI distribution

internal/client/commands.go

@@ -251,6 +251,9 @@ func (c *Client) processCommand(data []byte, pkt *protocol.Packet) error {
 	// Parse Commands (possibly multiple piped items)
 	commands := protocol.ParseCommands([]byte(cmdStr))
 
+	// State for piped commands (TS3 optimization omits repeated keys like ctid)
+	var lastCtid uint64
+
 	for _, command := range commands {
 		cmd := command.Name
 		args := command.Params
@@ -371,8 +374,9 @@ func (c *Client) processCommand(data []byte, pkt *protocol.Packet) error {
 				clientID = uint16(id)
 			}
 			if ctid, ok := args["ctid"]; ok {
-				fmt.Sscanf(ctid, "%d", &channelID)
+				fmt.Sscanf(ctid, "%d", &lastCtid)
 			}
+			channelID = lastCtid
 			log.Printf("Client entered: %s (ID=%d)", nick, clientID)
 			c.emitEvent("client_enter", map[string]any{
 				"clientID":  clientID,