🗃️ Fix notification push subscription unique key

DysonNetwork.Sphere/Account/Notification.cs

@@ -27,7 +27,7 @@ public enum NotificationPushProvider
     Google
 }
 
-[Index(nameof(DeviceToken), nameof(DeviceId), IsUnique = true)]
+[Index(nameof(DeviceToken), nameof(DeviceId), nameof(AccountId), IsUnique = true)]
 public class NotificationPushSubscription : ModelBase
 {
     public Guid Id { get; set; } = Guid.NewGuid();

DysonNetwork.Sphere/Account/NotificationService.cs

@@ -36,7 +36,6 @@ public class NotificationService(
             // Reset these audit fields to renew the lifecycle of this device token
             existingSubscription.DeviceId = deviceId;
             existingSubscription.DeviceToken = deviceToken;
-            existingSubscription.UpdatedAt = SystemClock.Instance.GetCurrentInstant();
             db.Update(existingSubscription);
             await db.SaveChangesAsync();
             return existingSubscription;

DysonNetwork.Sphere/Migrations/20250602144445_FixPushNotificationIndex.cs

@@ -0,0 +1,38 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace DysonNetwork.Sphere.Migrations
+{
+    /// <inheritdoc />
+    public partial class FixPushNotificationIndex : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropIndex(
+                name: "ix_notification_push_subscriptions_device_token_device_id",
+                table: "notification_push_subscriptions");
+
+            migrationBuilder.CreateIndex(
+                name: "ix_notification_push_subscriptions_device_token_device_id_acco",
+                table: "notification_push_subscriptions",
+                columns: new[] { "device_token", "device_id", "account_id" },
+                unique: true);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropIndex(
+                name: "ix_notification_push_subscriptions_device_token_device_id_acco",
+                table: "notification_push_subscriptions");
+
+            migrationBuilder.CreateIndex(
+                name: "ix_notification_push_subscriptions_device_token_device_id",
+                table: "notification_push_subscriptions",
+                columns: new[] { "device_token", "device_id" },
+                unique: true);
+        }
+    }
+}