修改 CloudProduct ImageCache 项目改为 插件

Core/MAX.Plugins/IPlugin.cs

@@ -0,0 +1,13 @@
+using Microsoft.AspNetCore.Builder;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace MAX.Plugins;
+
+/// <summary>独立插件入口。实现类必须具有无参构造函数。</summary>
+public interface IPlugin
+{
+    string Id { get; }
+    int Priority { get; }
+    void ConfigureServices(IServiceCollection services, PluginContext context);
+    void Configure(IApplicationBuilder app, PluginContext context);
+}