feat: Support multiple vector database selection, add InMemory and Qdrant adapters, introduce admin dashboard

Models/Request/User/UserRequests.cs

@@ -0,0 +1,36 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace Foxel.Models.Request.User;
+
+public class CreateUserRequest
+{
+    [Required(ErrorMessage = "用户名不能为空")]
+    public string UserName { get; set; }
+    
+    [Required(ErrorMessage = "邮箱不能为空")]
+    [EmailAddress(ErrorMessage = "邮箱格式不正确")]
+    public string Email { get; set; }
+    
+    [Required(ErrorMessage = "密码不能为空")]
+    [MinLength(6, ErrorMessage = "密码长度不能少于6个字符")]
+    public string Password { get; set; }
+    
+    [Required(ErrorMessage = "角色不能为空")]
+    public string Role { get; set; } = "User";
+}
+
+public class UpdateUserRequest
+{
+    [Required]
+    public int Id { get; set; }
+    
+    [Required(ErrorMessage = "用户名不能为空")]
+    public string UserName { get; set; }
+    
+    [Required(ErrorMessage = "邮箱不能为空")]
+    [EmailAddress(ErrorMessage = "邮箱格式不正确")]
+    public string Email { get; set; }
+    
+    [Required(ErrorMessage = "角色不能为空")]
+    public string Role { get; set; }
+}