feat: add toggle city status action

- Implement city status toggle functionality in the Ahoy Dashboard
- Add buttons for activating and deactivating cities
- Update the UI to show the current status of cities

This commit enhances the admin dashboard by allowing
administrators to toggle the activation status of cities.
The buttons provide confirmation prompts before executing
state changes, improving user experience and preventing
accidental actions.

app/admin/ahoy_dashboard.rb

@@ -1,5 +1,10 @@
 ActiveAdmin.register_page "Ahoy Dashboard" do
   menu label: "总览", parent: "数据统计", priority: 1
+  page_action :toggle_city_status, method: :post do
+    city = City.find(params[:city_id])
+    city.update(active: !city.active)
+    redirect_back(fallback_location: admin_dashboard_path, notice: "城市状态已更新")
+  end
 
   content title: "总览" do
     columns do
@@ -36,7 +41,14 @@ ActiveAdmin.register_page "Ahoy Dashboard" do
           table_for City.least_popular_active.limit(10) do
             column("城市") { |city| link_to(city.name, admin_city_path(city)) }
             column("访问量") { |city| city.view_count }
+            column("状态") { |city| status_tag(city.active? ? "活跃" : "停用") }
             # column("状态") { |city| status_tag(city.active? ? "活跃" : "停用") }
+            column("操作") { |city|
+              button_to "停用",
+                        admin_ahoy_dashboard_toggle_city_status_path(city_id: city.id),
+                        method: :post,
+                        data: { confirm: "确定要停用 #{city.name} 吗？" }
+            }
           end
         end
       end
@@ -48,6 +60,12 @@ ActiveAdmin.register_page "Ahoy Dashboard" do
             column("访问量") { |city| city.view_count }
             column("状态") { |city| status_tag(city.active? ? "活跃" : "停用") }
             column("所属区域") { |city| city.country.region.name }
+            column("操作") { |city|
+              button_to "激活",
+                        admin_ahoy_dashboard_toggle_city_status_path(city_id: city.id),
+                        method: :post,
+                        data: { confirm: "确定要激活 #{city.name} 吗？" }
+            }
           end
         end
       end