Generated response

Domain/Entities/UploadIntent.cs

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+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Musify.Domain.Entities
+{
+    [Table("UploadIntents")]
+    public class UploadIntent
+    {
+        [Key]
+        public Guid Id { get; set; } = Guid.NewGuid();
+
+        [Required]
+        public required Guid UserId { get; set; }
+
+        [Required, MaxLength(128)]
+        public required string Bucket { get; set; }
+
+        // Full S3 key (including prefix and object name)
+        [Required, MaxLength(512)]
+        public required string Key { get; set; }
+
+        // Just the filename portion stored in Track/PlayList entities (e.g. "{guid}.webp")
+        [Required, MaxLength(128)]
+        public required string ObjectName { get; set; }
+
+        [Required, MaxLength(128)]
+        public required string ContentType { get; set; }
+
+        public long? ExpectedSizeBytes { get; set; }
+
+        [Required]
+        public UploadIntentPurpose Purpose { get; set; }
+
+        [Required]
+        public UploadIntentStatus Status { get; set; } = UploadIntentStatus.Issued;
+
+        [Required]
+        public DateTime ExpiresAt { get; set; }
+
+        [Required]
+        public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+
+        [ForeignKey(nameof(UserId))]
+        public User User { get; set; } = null!;
+    }
+}