MM-21727 add an endpoint to move a command to another team (#13624)

* MM-21727 add an endpoint to move a command to another team

* endpoint
* mock / client
* unit tests

* MM-21727 PR feedback, addressed nits

* MM-21727 remove CommandMove base route

* MM-21272 replace TeamId struct with CommandMoveRequest struct

* MM-21727 fixed typo in CommandMoveRequest struct name

* MM-21727 return not-found for all getCommandById calls

* MM-21727 ensure no command ids leak

* when calling GetCommandById with invalid id return not_found
* when checking perms to manage commands for team return same not_found
* update unit tests to check for not_found

* MM-21727 Rename TeamIdFromCommandMoveRequestJson -> CommandMoveRequestFromJson

model/command_request.go

@@ -0,0 +1,31 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package model
+
+import (
+	"encoding/json"
+	"io"
+)
+
+type CommandMoveRequest struct {
+	TeamId string `json:"team_id"`
+}
+
+func CommandMoveRequestFromJson(data io.Reader) (*CommandMoveRequest, error) {
+	decoder := json.NewDecoder(data)
+	var cmr CommandMoveRequest
+	err := decoder.Decode(&cmr)
+	if err != nil {
+		return nil, err
+	}
+	return &cmr, nil
+}
+
+func (cmr *CommandMoveRequest) ToJson() string {
+	b, err := json.Marshal(cmr)
+	if err != nil {
+		return ""
+	}
+	return string(b)
+}