feat(pack): persist daily_free_gacha_count on PackChildGachaEntry

SVSim.Bootstrap/Data/test-fixtures/seeds/packs.json

@@ -190,5 +190,42 @@
         "dialog_title": "Dia_BuyCard_005_Title"
       }
     ]
+  },
+  {
+    "parent_gacha_id": 80032,
+    "base_pack_id": 80001,
+    "gacha_type": 1,
+    "pack_category": 1,
+    "poster_type": 0,
+    "commence_date": "2026-06-01 02:00:00",
+    "complete_date": "2026-07-01 01:59:59",
+    "sleeve_id": 5090001,
+    "special_sleeve_id": 0,
+    "override_draw_effect_pack_id": 80001,
+    "override_ui_effect_pack_id": 80001,
+    "gacha_detail": "Throwback test pack with a free-pack-of-the-day child.",
+    "is_hide": true,
+    "is_new": false,
+    "is_pre_release": false,
+    "is_enabled": false,
+    "open_count_limit": 0,
+    "sales_period_time": "2026-07-01 01:59:59",
+    "gacha_point": null,
+    "child_gachas": [
+      {
+        "gacha_id": 780032,
+        "type_detail": 10,
+        "cost": 1,
+        "card_count": 8,
+        "item_id": null,
+        "is_daily_single": false,
+        "override_increase_gacha_point": 0,
+        "purchase_limit_count": 1,
+        "daily_free_gacha_count": 1,
+        "free_gacha_campaign_id": 49,
+        "campaign_name": "New Season Release Bonus"
+      }
+    ],
+    "banners": []
   }
 ]

SVSim.Bootstrap/Importers/PackImporter.cs

@@ -77,6 +77,7 @@ public class PackImporter
                     IsDailySingle = c.IsDailySingle,
                     OverrideIncreaseGachaPoint = c.OverrideIncreaseGachaPoint,
                     PurchaseLimitCount = c.PurchaseLimitCount,
+                    DailyFreeGachaCount = c.DailyFreeGachaCount,
                     FreeGachaCampaignId = c.FreeGachaCampaignId,
                     CampaignName = c.CampaignName,
                 });
@@ -151,6 +152,7 @@ public class PackImporter
                     IsDailySingle = c.IsDailySingle,
                     OverrideIncreaseGachaPoint = c.OverrideIncreaseGachaPoint,
                     PurchaseLimitCount = c.PurchaseLimitCount,
+                    DailyFreeGachaCount = c.DailyFreeGachaCount,
                     FreeGachaCampaignId = c.FreeGachaCampaignId,
                     CampaignName = c.CampaignName,
                 });

SVSim.Database/Migrations/20260609012522_AddPackChildGachaDailyFreeGachaCount.cs

@@ -0,0 +1,29 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace SVSim.Database.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddPackChildGachaDailyFreeGachaCount : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>(
+                name: "DailyFreeGachaCount",
+                table: "PackChildGachaEntry",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0);
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropColumn(
+                name: "DailyFreeGachaCount",
+                table: "PackChildGachaEntry");
+        }
+    }
+}

SVSim.Database/Migrations/SVSimDbContextModelSnapshot.cs

@@ -3441,6 +3441,9 @@ namespace SVSim.Database.Migrations
                             b1.Property<int>("Cost")
                                 .HasColumnType("integer");
 
+                            b1.Property<int>("DailyFreeGachaCount")
+                                .HasColumnType("integer");
+
                             b1.Property<int?>("FreeGachaCampaignId")
                                 .HasColumnType("integer");
 

SVSim.Database/Models/PackChildGachaEntry.cs

@@ -21,6 +21,7 @@ public class PackChildGachaEntry
     public bool IsDailySingle { get; set; }
     public int OverrideIncreaseGachaPoint { get; set; }
     public int PurchaseLimitCount { get; set; }
+    public int DailyFreeGachaCount { get; set; }
     public int? FreeGachaCampaignId { get; set; }
     public string? CampaignName { get; set; }
 }

SVSim.UnitTests/Importers/PackSeedingPipelineTests.cs

@@ -58,4 +58,21 @@ public class PackSeedingPipelineTests
         Assert.That(pack.ChildGachas.Count, Is.EqualTo(3),
             "child_gacha_info is owned — rerun must replace, not stack.");
     }
+
+    [Test]
+    public async Task SeedGlobals_preserves_daily_free_gacha_count_on_free_child()
+    {
+        using var factory = new SVSimTestFactory();
+        await factory.SeedGlobalsAsync();
+
+        using var scope = factory.Services.CreateScope();
+        var db = scope.ServiceProvider.GetRequiredService<SVSimDbContext>();
+        var pack = await db.Packs.AsNoTracking().FirstAsync(p => p.Id == 80032);
+        var freeChild = pack.ChildGachas.Single(c => c.TypeDetail == 10);
+
+        Assert.That(freeChild.DailyFreeGachaCount, Is.EqualTo(1));
+        Assert.That(freeChild.PurchaseLimitCount, Is.EqualTo(1));
+        Assert.That(freeChild.FreeGachaCampaignId, Is.EqualTo(49));
+        Assert.That(freeChild.CampaignName, Is.EqualTo("New Season Release Bonus"));
+    }
 }