Add admin panel: visit counter, product editor, screenshots upload

internal/models/product.go

@@ -6,10 +6,23 @@ type Product struct {
 	ID          int
 	Name        string
 	Description string
+	Details     string
 	Price       float64
 	ImageURL    string
 	Category    string
+	IsActive    bool
 	CreatedAt   time.Time
+	UpdatedAt   time.Time
+	Images      []ProductImage
+}
+
+type ProductImage struct {
+	ID        int
+	ProductID int
+	FilePath  string
+	IsPrimary bool
+	SortOrder int
+	CreatedAt time.Time
 }
 
 type Category struct {
@@ -17,3 +30,8 @@ type Category struct {
 	Slug  string
 	Count int
 }
+
+type SiteStats struct {
+	TotalVisits int64
+	TodayVisits int
+}