新增：项目标记关联组织接口

app/models/issue_tag.rb

@@ -15,9 +15,11 @@
 #  gitea_url           :string(255)
 #  pull_requests_count :integer          default("0")
 #  pm_project_id       :integer
+#  organization_id     :integer
 #
 # Indexes
 #
+#  index_issue_tags_on_organization_id                  (organization_id)
 #  index_issue_tags_on_user_id_and_name_and_project_id  (user_id,name,project_id)
 #
 
@@ -29,6 +31,9 @@ class IssueTag < ApplicationRecord
   has_many :pull_request_issues, -> {where(issue_classify: "pull_request")}, source: :issue, through: :issue_tags_relates
   belongs_to :project, optional: true, counter_cache: true
   belongs_to :user, optional: true
+  belongs_to :organization, optional: true
+
+  scope :pm_able, -> {where(project_id: 0)}
 
   validates :name, uniqueness: {scope: :project_id, message: "已存在" }, if: :pm_project?