feat: move marketing admin to /api/admin and remove built-in page

internal/routes/routes.go

@@ -2,8 +2,6 @@ package routes
 
 import (
 	"net/http"
-	"os"
-	"path/filepath"
 
 	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
@@ -22,29 +20,6 @@ import (
 	smokehandler "wx_service/internal/smoke/handler"
 )
 
-func resolveMarketingPage() string {
-	candidates := []string{
-		filepath.Join("web", "marketing", "index.html"),
-		filepath.Join("..", "web", "marketing", "index.html"),
-	}
-
-	if executable, err := os.Executable(); err == nil {
-		exeDir := filepath.Dir(executable)
-		candidates = append(candidates,
-			filepath.Join(exeDir, "web", "marketing", "index.html"),
-			filepath.Join(exeDir, "..", "web", "marketing", "index.html"),
-		)
-	}
-
-	for _, path := range candidates {
-		if _, err := os.Stat(path); err == nil {
-			return path
-		}
-	}
-
-	return filepath.Join("web", "marketing", "index.html")
-}
-
 func Register(
 	router *gin.Engine,
 	db *gorm.DB,
@@ -93,7 +68,7 @@ func Register(
 		registerMarketingRoutes(api, protected, adminToken, marketingCategoryHandler, marketingTemplateHandler, marketingDownloadHandler)
 	}
 
-	registerAdminRoutes(router, adminHandler)
+	registerAdminRoutes(router, adminHandler, marketingCategoryHandler, marketingTemplateHandler, marketingDownloadHandler)
 
 	// 保质期提醒模块使用独立前缀 /api/expiry，与现有 /api/v1 并存。
 	expiryAPI := router.Group("/api/expiry")
@@ -108,11 +83,6 @@ func Register(
 		}
 	}
 
-	// Web 管理后台静态文件
-	marketingPage := resolveMarketingPage()
-	router.StaticFile("/admin/marketing", marketingPage)
-	router.StaticFile("/admin/marketing/", marketingPage)
-
 	// 健康检查：用于容器/负载均衡探活
 	router.GET("/healthz", func(c *gin.Context) {
 		c.JSON(http.StatusOK, gin.H{"status": "ok"})