新增：删除分支接口

app/services/api/v1/projects/branches/delete_service.rb

@@ -0,0 +1,42 @@
+class Api::V1::Projects::Branches::DeleteService < ApplicationService 
+  include ActiveModel::Model
+
+  attr_accessor :project, :token, :owner, :repo, :branch_name
+  attr_accessor :gitea_data
+
+  validates :branch_name, presence: true
+
+  def initialize(project, branch_name, token=nil)
+    @project = project 
+    @owner = project&.owner.login 
+    @repo = project&.identifier
+    @branch_name = branch_name
+    @token = token 
+  end
+
+  def call 
+    raise Error, errors.full_messages.join(",") unless valid?
+
+    # check_branch_exist
+    excute_data_to_gitea
+    
+    true
+  end
+
+  private 
+  def request_params 
+    {
+      access_token: token 
+    }
+  end
+
+  def excute_data_to_gitea 
+    @gitea_data = $gitea_client.delete_repos_branches_by_owner_repo_branch(owner, repo, branch_name, {query: request_params}) rescue nil
+  end
+
+  def check_branch_exist
+    result = $gitea_client.get_repos_branch_name_set_by_owner_repo(owner, repo, {query: request_params}) rescue nil
+    raise Error, '查询分支名称失败！' unless result.is_a?(Hash)
+    raise Error, '分支不存在！' if !result['branch_name'].include?(@branch_name)
+  end
+end