Implement identity verification feature with image upload and token management

FoodsharingSiegen.Contracts/Entity/Prospect.cs

@@ -63,6 +63,16 @@ namespace FoodsharingSiegen.Contracts.Entity
         /// </summary>
         public bool Warning { get; set; }
 
+        /// <summary>
+        ///     Gets or sets a token string used to securely authorize upload logic.
+        /// </summary>
+        public Guid? VerificationToken { get; set; }
+
+        /// <summary>
+        ///     Gets or sets uploaded identity verification images.
+        /// </summary>
+        public ICollection<ProspectImage>? Images { get; set; }
+
         #endregion
     }
 }

FoodsharingSiegen.Contracts/Entity/ProspectImage.cs

@@ -0,0 +1,28 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace FoodsharingSiegen.Contracts.Entity
+{
+    /// <summary>
+    ///     Represents an uploaded image for a prospect's verification.
+    /// </summary>
+    public class ProspectImage
+    {
+        [Key]
+        public Guid Id { get; set; }
+
+        public Guid ProspectId { get; set; }
+
+        [ForeignKey("ProspectId")]
+        public Prospect? Prospect { get; set; }
+
+        [Required]
+        public byte[] ImageData { get; set; } = [];
+
+        [Required]
+        [MaxLength(100)]
+        public string ContentType { get; set; } = string.Empty;
+
+        public DateTime Created { get; set; }
+    }
+}