[MM-25648] api4: add user/bot convert endpoints (#14877)

* api4: add user/bot convert endpoints

* api4: add convert user/bot to local mode

* api4: fix linting issues

* api4/bot: reflect review comments

* api4: update convert user endpoint paths

* remove shadow decl

* fix translation problems

model/client4.go

@@ -1226,6 +1226,30 @@ func (c *Client4) DeleteUser(userId string) (bool, *Response) {
 	return CheckStatusOK(r), BuildResponse(r)
 }
 
+// ConvertUserToBot converts a user to a bot user.
+func (c *Client4) ConvertUserToBot(userId string) (*Bot, *Response) {
+	r, err := c.DoApiPost(c.GetUserRoute(userId)+"/convert_to_bot", "")
+	if err != nil {
+		return nil, BuildErrorResponse(r, err)
+	}
+	defer closeBody(r)
+	return BotFromJson(r.Body), BuildResponse(r)
+}
+
+// ConvertBotToUser converts a bot user to a user.
+func (c *Client4) ConvertBotToUser(userId string, userPatch *UserPatch, setSystemAdmin bool) (*User, *Response) {
+	var query string
+	if setSystemAdmin {
+		query = "?set_system_admin=true"
+	}
+	r, err := c.DoApiPost(c.GetBotRoute(userId)+"/convert_to_user"+query, userPatch.ToJson())
+	if err != nil {
+		return nil, BuildErrorResponse(r, err)
+	}
+	defer closeBody(r)
+	return UserFromJson(r.Body), BuildResponse(r)
+}
+
 // PermanentDeleteAll permanently deletes all users in the system. This is a local only endpoint
 func (c *Client4) PermanentDeleteAllUsers() (bool, *Response) {
 	r, err := c.DoApiDelete(c.GetUsersRoute())