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();
 }

SVSim.EmulatedEntrypoint/Models/Dtos/LoginBonusCampaign.cs

@@ -3,25 +3,38 @@ using System.Text.Json.Serialization;
 
 namespace SVSim.EmulatedEntrypoint.Models.Dtos;
 
+/// <summary>
+/// One login-bonus campaign panel. Used for normal, each campaign array entry, and (when
+/// populated) total. <c>campaign_id</c> and <c>img</c> ship as strings on the wire. Client
+/// consumers: NormalData (reads name, now_count, is_next_reward, reward[]),
+/// SpecialData (also reads start_date, end_date, img, is_one_day_multi_rewards),
+/// ContinuousData (reads only reward[]).
+/// </summary>
 [MessagePackObject]
 public class LoginBonusCampaign
 {
-    [JsonPropertyName("name")]
-    [Key("name")]
+    [JsonPropertyName("name")] [Key("name")]
     public string Name { get; set; } = string.Empty;
-    [JsonPropertyName("campaign_id")]
-    [Key("campaign_id")]
-    public int CampaignId { get; set; }
-    [JsonPropertyName("img")]
-    [Key("img")]
-    public int Image { get; set; }
-    [JsonPropertyName("now_count")]
-    [Key("now_count")]
+
+    [JsonPropertyName("campaign_id")] [Key("campaign_id")]
+    public string CampaignId { get; set; } = "0";
+
+    [JsonPropertyName("img")] [Key("img")]
+    public string Img { get; set; } = "0";
+
+    [JsonPropertyName("now_count")] [Key("now_count")]
     public int NowCount { get; set; }
-    [JsonPropertyName("is_next_reward")]
-    [Key("is_next_reward")]
+
+    [JsonPropertyName("is_next_reward")] [Key("is_next_reward")]
     public bool IsNextReward { get; set; }
-    [JsonPropertyName("reward")]
-    [Key("reward")]
-    public List<LoginBonusReward> Rewards { get; set; } = new List<LoginBonusReward>();
+
+    [JsonPropertyName("reward")] [Key("reward")]
+    public List<LoginBonusReward> Rewards { get; set; } = new();
+
+    /// <summary>
+    /// SpecialData-only on the client (SpecialData.cs:50). Server emits it on every panel
+    /// for byte-faithful replay; client ignores it on Normal/Total paths.
+    /// </summary>
+    [JsonPropertyName("is_one_day_multi_rewards")] [Key("is_one_day_multi_rewards")]
+    public bool IsOneDayMultiRewards { get; set; }
 }

SVSim.EmulatedEntrypoint/Models/Dtos/LoginBonusReward.cs

@@ -3,34 +3,23 @@ using System.Text.Json.Serialization;
 
 namespace SVSim.EmulatedEntrypoint.Models.Dtos;
 
+/// <summary>
+/// One day's reward in a login-bonus cycle. All numeric fields ship as quoted strings on
+/// the wire — prod-confirmed shape from traffic_prod_tutorial.ndjson. Client uses
+/// JsonData.ToInt() so it tolerates either form, but we match prod exactly.
+/// </summary>
 [MessagePackObject]
 public class LoginBonusReward
 {
-    /// <summary>
-    /// The effect shown ingame.
-    /// </summary>
-    [JsonPropertyName("effect_id")]
-    [Key("effect_id")]
-    public int EffectId { get; set; }
+    [JsonPropertyName("effect_id")] [Key("effect_id")]
+    public string EffectId { get; set; } = "0";
 
-    /// <summary>
-    /// The type of reward.
-    /// </summary>
-    [JsonPropertyName("reward_type")]
-    [Key("reward_type")]
-    public int RewardType { get; set; }
+    [JsonPropertyName("reward_type")] [Key("reward_type")]
+    public string RewardType { get; set; } = "0";
 
-    /// <summary>
-    /// A more specified reward type (ie if a pack, which pack).
-    /// </summary>
-    [JsonPropertyName("reward_detail_id")]
-    [Key("reward_detail_id")]
-    public int RewardDetailId { get; set; }
+    [JsonPropertyName("reward_detail_id")] [Key("reward_detail_id")]
+    public string RewardDetailId { get; set; } = "0";
 
-    /// <summary>
-    /// The count of the reward.
-    /// </summary>
-    [JsonPropertyName("reward_number")]
-    [Key("reward_number")]
-    public int RewardNumber { get; set; }
+    [JsonPropertyName("reward_number")] [Key("reward_number")]
+    public string RewardNumber { get; set; } = "0";
 }

SVSim.EmulatedEntrypoint/Models/Dtos/Responses/IndexResponse.cs

@@ -149,8 +149,10 @@ public class IndexResponse
     public List<UserRankedMatches> UserRankedMatches { get; set; } = new();
 
     /// <summary>
-    /// Spec: optional. Shape is {normal?, total?, campaign?[]} per common/types.ts.md DailyLoginBonus.
-    /// Populated by ILoginBonusService when the viewer has an active bonus period; null otherwise.
+    /// Spec: optional. Shape {normal?, total?, campaign?[]} — client parses three keys
+    /// in LoadDetail.cs:553. <c>normal</c> presence triggers the login-bonus popup
+    /// (NextSceneSwitcher.cs:103). Populated by ILoginBonusService at /load/index time;
+    /// null when the viewer has already claimed today's bonus.
     /// </summary>
     [JsonPropertyName("daily_login_bonus")]
     [Key("daily_login_bonus")]

SVSim.UnitTests/Dtos/DailyLoginBonusWireShapeTests.cs

@@ -0,0 +1,59 @@
+using System.Text.Json;
+using NUnit.Framework;
+using SVSim.EmulatedEntrypoint.Models.Dtos;
+
+namespace SVSim.UnitTests.Dtos;
+
+public class DailyLoginBonusWireShapeTests
+{
+    private static readonly JsonSerializerOptions Opts = new()
+    {
+        PropertyNamingPolicy = JsonNamingPolicy.SnakeCaseLower,
+        DefaultIgnoreCondition = System.Text.Json.Serialization.JsonIgnoreCondition.WhenWritingNull,
+    };
+
+    [Test]
+    public void Reward_numeric_fields_serialize_as_strings()
+    {
+        var r = new LoginBonusReward
+        {
+            EffectId = "1", RewardType = "9", RewardDetailId = "0", RewardNumber = "20"
+        };
+
+        var json = JsonSerializer.Serialize(r, Opts);
+        using var doc = JsonDocument.Parse(json);
+        Assert.That(doc.RootElement.GetProperty("effect_id").ValueKind,        Is.EqualTo(JsonValueKind.String));
+        Assert.That(doc.RootElement.GetProperty("reward_type").ValueKind,      Is.EqualTo(JsonValueKind.String));
+        Assert.That(doc.RootElement.GetProperty("reward_detail_id").ValueKind, Is.EqualTo(JsonValueKind.String));
+        Assert.That(doc.RootElement.GetProperty("reward_number").ValueKind,    Is.EqualTo(JsonValueKind.String));
+    }
+
+    [Test]
+    public void Campaign_id_and_img_serialize_as_strings()
+    {
+        var c = new LoginBonusCampaign { CampaignId = "3", Img = "0", Name = "Daily Bonus" };
+        var json = JsonSerializer.Serialize(c, Opts);
+        using var doc = JsonDocument.Parse(json);
+        Assert.That(doc.RootElement.GetProperty("campaign_id").ValueKind, Is.EqualTo(JsonValueKind.String));
+        Assert.That(doc.RootElement.GetProperty("img").ValueKind,         Is.EqualTo(JsonValueKind.String));
+    }
+
+    [Test]
+    public void Campaign_supports_is_one_day_multi_rewards_flag()
+    {
+        var c = new LoginBonusCampaign { IsOneDayMultiRewards = false };
+        var json = JsonSerializer.Serialize(c, Opts);
+        using var doc = JsonDocument.Parse(json);
+        Assert.That(doc.RootElement.TryGetProperty("is_one_day_multi_rewards", out var v), Is.True);
+        Assert.That(v.ValueKind, Is.EqualTo(JsonValueKind.False));
+    }
+
+    [Test]
+    public void DailyLoginBonus_campaign_is_an_array()
+    {
+        var d = new DailyLoginBonus { Normal = new LoginBonusCampaign(), Campaign = new List<LoginBonusCampaign>() };
+        var json = JsonSerializer.Serialize(d, Opts);
+        using var doc = JsonDocument.Parse(json);
+        Assert.That(doc.RootElement.GetProperty("campaign").ValueKind, Is.EqualTo(JsonValueKind.Array));
+    }
+}