fix: 插件自注册 — 在构造函数中注册到全局 Registry

fx.Invoke 执行顺序不确定导致插件路由未注册，改为在 New() 中自注册

internal/app/app.go

@@ -132,9 +132,6 @@ func NewApp() *fx.App {
 		settingsinterfaces.Module,
 		notificationinterfaces.Module,
 		exampleinterfaces.Module,
-		fx.Invoke(func(p *exampleinterfaces.ExamplePlugin) {
-			plugin.Register(p)
-		}),
 		Module,
 	)
 }

internal/modules/example/interfaces/plugin.go

@@ -17,10 +17,11 @@ type ExamplePlugin struct {
 	handler *Handler
 }
 
-// New creates the example plugin.
-// Call this during application bootstrap to register the plugin.
+// New creates the example plugin and registers it in the global plugin registry.
 func New(handler *Handler) *ExamplePlugin {
-	return &ExamplePlugin{handler: handler}
+	p := &ExamplePlugin{handler: handler}
+	plugin.Register(p)
+	return p
 }
 
 func (p *ExamplePlugin) Metadata() plugin.Metadata {