add: webhook tasks and test

app/models/gitea/webhook.rb

@@ -1,8 +1,10 @@
 class Gitea::Webhook < Gitea::Base 
+  serialize :events, JSON
   self.inheritance_column = nil
 
   self.table_name = 'webhook'
   
+  has_many :tasks, class_name: "Gitea::WebhookTask", foreign_key: :hook_id
   belongs_to :project, class_name: "::Project", primary_key: :gpid, foreign_key: :repo_id, optional: true
 
   enum hook_task_type: {gogs: 1, slack: 2, gitea: 3, discord: 4, dingtalk: 5, telegram: 6, msteams: 7, feishu: 8, matrix: 9}

app/models/gitea/webhook_task.rb

@@ -0,0 +1,13 @@
+class Gitea::WebhookTask < Gitea::Base 
+  serialize :payload_content, JSON
+  serialize :request_content, JSON
+  serialize :response_content, JSON
+
+  self.inheritance_column = nil
+
+  self.table_name = 'hook_task'
+
+  belongs_to :webhook, class_name: "Gitea::Webhook", foreign_key: :hook_id
+
+  enum type: {gogs: 1, slack: 2, gitea: 3, discord: 4, dingtalk: 5, telegram: 6, msteams: 7, feishu: 8, matrix: 9}
+end