feat: add announcement feature with admin management and home page display

backend/internal/api/routes/routes.go

@@ -28,6 +28,7 @@ func SetupRoutes(r *gin.Engine) {
 	logHandler := handlers.NewLogHandler()
 	purchaseGroupHandler := handlers.NewPurchaseGroupHandler()
 	shippingTemplateHandler := handlers.NewShippingTemplateHandler()
+	announcementHandler := handlers.NewAnnouncementHandler()
 
 	r.Use(middlewares.CORSMiddleware())
 
@@ -62,6 +63,7 @@ func SetupRoutes(r *gin.Engine) {
 		}
 
 		api.GET("/banners", bannerHandler.List)
+		api.GET("/announcements", announcementHandler.List)
 
 		api.GET("/categories", categoryHandler.List)
 		api.GET("/brands", brandHandler.List)
@@ -262,6 +264,15 @@ func SetupRoutes(r *gin.Engine) {
 					adminShippingTemplates.PUT("/:id", shippingTemplateHandler.Update)
 					adminShippingTemplates.DELETE("/:id", shippingTemplateHandler.Delete)
 				}
+
+				adminAnnouncements := admin.Group("/announcements")
+				{
+					adminAnnouncements.GET("", announcementHandler.AdminList)
+					adminAnnouncements.POST("", announcementHandler.Create)
+					adminAnnouncements.PUT("/:id", announcementHandler.Update)
+					adminAnnouncements.DELETE("/:id", announcementHandler.Delete)
+					adminAnnouncements.PUT("/:id/toggle", announcementHandler.ToggleActive)
+				}
 			}
 		}
 	}