Initial commit of LittleShop project (excluding large archives)

- BTCPay Server integration
- TeleBot Telegram bot
- Review system
- Admin area
- Docker deployment configuration

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

LittleShop/Models/Review.cs

@@ -0,0 +1,45 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace LittleShop.Models;
+
+public class Review
+{
+    [Key]
+    public Guid Id { get; set; }
+    
+    [Required]
+    public Guid ProductId { get; set; }
+    
+    [Required]
+    public Guid CustomerId { get; set; }
+    
+    [Required]
+    public Guid OrderId { get; set; }
+    
+    [Range(1, 5)]
+    public int Rating { get; set; }
+    
+    [StringLength(100)]
+    public string? Title { get; set; }
+    
+    [StringLength(2000)]
+    public string? Comment { get; set; }
+    
+    public bool IsVerifiedPurchase { get; set; } = true;
+    
+    public bool IsApproved { get; set; } = false;
+    
+    public bool IsActive { get; set; } = true;
+    
+    public DateTime CreatedAt { get; set; }
+    public DateTime UpdatedAt { get; set; }
+    public DateTime? ApprovedAt { get; set; }
+    public Guid? ApprovedByUserId { get; set; }
+    
+    // Navigation properties
+    public virtual Product Product { get; set; } = null!;
+    public virtual Customer Customer { get; set; } = null!;
+    public virtual Order Order { get; set; } = null!;
+    public virtual User? ApprovedByUser { get; set; }
+}