add: applied join project

config/routes.rb

@@ -148,6 +148,8 @@ Rails.application.routes.draw do
       resources :issue_depends, only: [:create, :destroy]
     end
 
+    resources :applied_projects, only: [:create]
+
     resources :project_categories, only: [:index, :show] do
       get :group_list, on: :collection
     end
@@ -266,6 +268,12 @@ Rails.application.routes.draw do
             post :refuse
           end
         end
+        resources :applied_projects, only: [:index] do 
+          member do 
+            post :accept
+            post :refuse
+          end
+        end
         resources :headmaps, only: [:index]
         resources :is_pinned_projects, only: [:index, :update] do 
           collection do