fix(dto): align daily_login_bonus DTOs with prod wire shape

- numeric fields ship as quoted strings (campaign_id, img, effect_id,
  reward_type, reward_detail_id, reward_number)
- DailyLoginBonus.Campaign is a List<>, not a single object
- LoginBonusCampaign.Img replaces Image (string, asset-key)
- add IsOneDayMultiRewards (SpecialData-only on client, byte-faithful)

SVSim.EmulatedEntrypoint/Models/Dtos/DailyLoginBonus.cs

@@ -3,16 +3,24 @@ using System.Text.Json.Serialization;
 
 namespace SVSim.EmulatedEntrypoint.Models.Dtos;
 
+/// <summary>
+/// Wire shape: { normal?, total?, campaign? (array) }. Client parser at
+/// LoadDetail.cs:553 reads exactly these three keys. <c>normal</c> presence drives
+/// IsExistLoginBonusData() / popup eligibility.
+/// </summary>
 [MessagePackObject]
 public class DailyLoginBonus
 {
-    [JsonPropertyName("total")]
-    [Key("total")]
-    public LoginBonusCampaign? Total { get; set; }
-    [JsonPropertyName("normal")]
-    [Key("normal")]
+    [JsonPropertyName("normal")] [Key("normal")]
     public LoginBonusCampaign? Normal { get; set; }
-    [JsonPropertyName("campaign")]
-    [Key("campaign")]
-    public LoginBonusCampaign? Campaign { get; set; }
-}
+
+    [JsonPropertyName("total")] [Key("total")]
+    public LoginBonusCampaign? Total { get; set; }
+
+    /// <summary>
+    /// Array of campaign panels (LoadDetail.cs:583 iterates jsonData3[i]). Empty list
+    /// when no specials are active — prod sends [] not null in that case.
+    /// </summary>
+    [JsonPropertyName("campaign")] [Key("campaign")]
+    public List<LoginBonusCampaign> Campaign { get; set; } = new();
+}