新增：项目中所有未关联迭代工作项

app/controllers/api/pm/sprint_issues_controller.rb

@@ -0,0 +1,23 @@
+class Api::Pm::SprintIssuesController < Api::Pm::BaseController
+
+  before_action :require_login, except: [:index]
+  def index 
+    @issues = Api::Pm::SprintIssues::ListService.call(query_params, current_user)
+    @issues = kaminari_paginate(@issues)
+    render 'api/v1/issues/index'
+  end
+  
+  def query_params
+    params.permit(
+      :category,
+      :pm_project_id,
+      :pm_issue_type, #需求1  任务2 缺陷3
+      :assigner_id, 
+      :priority_id,
+      :status_id,
+      :keyword,
+      :sort_by, :sort_direction
+    )
+  end
+
+end