新增：仓库贡献者行数查询接口

app/services/api/v1/projects/code_stats/list_service.rb

@@ -0,0 +1,34 @@
+class Api::V1::Projects::CodeStats::ListService < ApplicationService 
+
+  attr_reader :project, :ref, :owner, :repo, :token
+  attr_accessor :gitea_data 
+
+  def initialize(project, params, token=nil) 
+    @project = project 
+    @ref = params[:ref] 
+    @owner = project&.owner.login
+    @repo = project&.identifier
+    @token = token
+  end
+
+  def call 
+    load_gitea_data 
+
+    gitea_data
+  end
+
+  private 
+  def request_params 
+    param = {
+      access_token: token
+    }
+    param.merge!(ref: ref) if ref.present?
+
+    param
+  end
+
+  def load_gitea_data 
+    @gitea_data = $gitea_client.get_repos_code_stats_by_owner_repo(owner, repo, {query: request_params}) rescue nil
+    raise Error, '获取贡献者贡献度失败！' unless @gitea_data.is_a?(Hash)
+  end
+end