任务系统一半多，商城筛选功能，一些细节和免费包

Assets/scripts/_runtimecache/ExpBottleLedgerModels.cs

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+using System;
+using System.Collections.Generic;
+
+[Serializable]
+public class ExpBottleEntry
+{
+    public string key;
+    public int count;
+}
+
+[Serializable]
+public class ExpBottleLedgerPayload
+{
+    public int version = 1;
+    public long lastUpdatedUtcTicks;
+    public List<ExpBottleEntry> entries = new List<ExpBottleEntry>();
+}
+
+[Serializable]
+public class ExpBottleLedgerEnvelope
+{
+    public string payload;
+    public string signature;
+}
+
+[Serializable]
+public class ExpBottleSnapshotEntry
+{
+    public string key;
+    public int count;
+}