feat(background): add face recognition functionality- Implement face recognition task type and processing

Models/DataBase/BackgroundTask.cs

@@ -8,6 +8,7 @@ namespace Foxel.Models.DataBase
     {
         PictureProcessing = 0,
         VisualRecognition = 1,
+        FaceRecognition = 2,
     }
 
     public enum TaskExecutionStatus

Models/DataBase/Face.cs

@@ -0,0 +1,24 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace Foxel.Models.DataBase;
+
+public class Face : BaseModel
+{
+    public float[]? Embedding { get; set; }
+    
+    public int X { get; set; }
+    public int Y { get; set; }
+    public int W { get; set; }
+    public int H { get; set; }
+    
+    [Range(0.0, 1.0)]
+    public double FaceConfidence { get; set; }
+    
+    public int PictureId { get; set; }
+    
+    [StringLength(255)]
+    public string? PersonName { get; set; }
+    [ForeignKey("PictureId")]
+    public Picture Picture { get; set; } = null!;
+}

Models/DataBase/Picture.cs

@@ -48,6 +48,8 @@ public class Picture : BaseModel
     public Album? Album { get; set; }
 
     public ICollection<Favorite>? Favorites { get; set; }
+    
+    public ICollection<Face>? Faces { get; set; }
 
     public bool ContentWarning { get; set; } = false;
     public PermissionType Permission { get; set; } = PermissionType.Public;