Always force a ChangeRequirement dict to exist

Libraries/SPTarkov.Server.Core/Controllers/RepeatableQuestController.cs

@@ -607,7 +607,7 @@ public class RepeatableQuestController(
             fullProfile.SptData.FreeRepeatableRefreshUsedCount[repeatableTypeLower] = 0;
 
             // Create stupid redundant change requirements from quest data
-            generatedRepeatables.ChangeRequirement = new Dictionary<MongoId, ChangeRequirement?>();
+            generatedRepeatables.ChangeRequirement = [];
             foreach (var quest in generatedRepeatables.ActiveQuests)
             {
                 generatedRepeatables.ChangeRequirement.TryAdd(
@@ -707,6 +707,7 @@ public class RepeatableQuestController(
                 EndTime = 0,
                 FreeChanges = hasAccess ? repeatableConfig.FreeChanges : 0,
                 FreeChangesAvailable = hasAccess ? repeatableConfig.FreeChangesAvailable : 0,
+                ChangeRequirement = [],
             };
 
             // Add base object that holds repeatable data to profile

Libraries/SPTarkov.Server.Core/Models/Eft/Common/Tables/RepeatableQuests.cs

@@ -6,7 +6,7 @@ namespace SPTarkov.Server.Core.Models.Eft.Common.Tables;
 public record RepeatableQuest : Quest
 {
     [JsonPropertyName("changeCost")]
-    public List<ChangeCost?>? ChangeCost { get; set; }
+    public required List<ChangeCost> ChangeCost { get; set; }
 
     [JsonPropertyName("changeStandingCost")]
     public int? ChangeStandingCost { get; set; }
@@ -94,7 +94,7 @@ public record PmcDataRepeatableQuest
     /// </summary>
     [JsonIgnore(Condition = JsonIgnoreCondition.Never)]
     [JsonPropertyName("changeRequirement")]
-    public Dictionary<MongoId, ChangeRequirement?>? ChangeRequirement { get; set; }
+    public required Dictionary<MongoId, ChangeRequirement> ChangeRequirement { get; set; } = [];
 
     [JsonPropertyName("freeChanges")]
     public int? FreeChanges { get; set; }
@@ -106,10 +106,10 @@ public record PmcDataRepeatableQuest
 public record ChangeRequirement
 {
     [JsonPropertyName("changeCost")]
-    public List<ChangeCost?>? ChangeCost { get; set; }
+    public required List<ChangeCost> ChangeCost { get; set; } = [];
 
     [JsonPropertyName("changeStandingCost")]
-    public double? ChangeStandingCost { get; set; }
+    public required double ChangeStandingCost { get; set; }
 }
 
 public record ChangeCost