fix(cli): drop PENDING as a parameter for message queue commands (#20367)

docs/administrator/admin/ragflow_cli.md

@@ -574,13 +574,9 @@ Lists messages currently retained in the task stream. The optional `PENDING` key
 **Syntax**
 
 ```sql
-MQ LIST [PENDING];
+MQ LIST;
 ```
 
-| Parameter | Required | Description |
-| --- | --- | --- |
-| `[PENDING]` | No | Requests the pending-message form of the command. |
-
 **Example**
 
 ```text

internal/cli/admin_parser.go

@@ -2690,11 +2690,9 @@ func (p *Parser) parseMessageQueueCommand() (*Command, error) {
 
 		cmd = NewCommand("user_list_message_queue_command")
 		if p.curToken.Type == TokenPending {
-			cmd.Params["pending"] = true
 			p.nextToken() // consume PENDING
-		} else {
-			cmd.Params["pending"] = false
 		}
+
 	case TokenPublish:
 		p.nextToken() // consume PUBLISH