Mark every Cult document [MessagePackObject]

PlayerData, CultMeshSimulationFact, the Networking interop peer's
CultNetInteropNote, the cultnet-py benchmark item and the Caching test
documents lacked [MessagePackObject]. Only the generated codec could
serialize them; MessagePackSerializer refuses such types. Non-public test
documents take [MessagePackObject(AllowPrivate = true)], as consumer
internal documents already do, and ConditionalCommitTests.Slow marks its
private backing fields [IgnoreMember].

Same [Key]s, so payloads are unchanged: a pre/post probe over the
Networking assembly and both interop peers showed identical schema id,
content hash and payload bytes for all 9 documents, PlayerData equal once
its Guid.NewGuid() default id is masked.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

packages/cultnet-py/tools/GameCult.Caching.Benchmark/Program.cs

@@ -94,6 +94,7 @@ internal sealed record BenchmarkResult(string Runtime, int Records, IReadOnlyLis
 internal sealed record BenchmarkMetric(string Name, int Operations, double ElapsedMs, double OpsPerSecond);
 
 [CultDocument("bench.item", "bench.item.v1")]
+[MessagePackObject(AllowPrivate = true)]
 internal sealed class BenchItem
 {
     [Key(0)] [CultName]

src/GameCult.Mesh/CultMeshSimulationFacts.cs

@@ -13,6 +13,7 @@ namespace GameCult.Mesh
     /// Committed simulation fact derived from witness consensus.
     /// </summary>
     [CultDocument("gamecult.mesh.simulation_fact", "gamecult.mesh.simulation_fact.v1")]
+    [MessagePackObject]
     public sealed class CultMeshSimulationFact
     {
         /// <summary>

src/GameCult.Networking/PlayerData.cs

@@ -8,6 +8,7 @@ namespace GameCult.Networking
     /// Basic player account document used by the sample networking stack.
     /// </summary>
     [CultDocument("gamecult.player_data", "gamecult.player_data.v2")]
+    [MessagePackObject]
     public class PlayerData
     {
         /// <summary>

tests/GameCult.Caching.Tests/ConditionalCommitTests.cs

@@ -911,6 +911,7 @@ namespace GameCult.Caching.Tests
         }
 
         [CultDocument("tests.conditional_counter", "tests.conditional_counter.v1")]
+        [MessagePackObject(AllowPrivate = true)]
         internal sealed class Counter
         {
             [Key(0)]
@@ -922,6 +923,7 @@ namespace GameCult.Caching.Tests
         }
 
         [CultDocument("tests.conditional_tally", "tests.conditional_tally.v1")]
+        [MessagePackObject(AllowPrivate = true)]
         internal sealed class Tally
         {
             [Key(0)]
@@ -931,14 +933,15 @@ namespace GameCult.Caching.Tests
 
         // Loading a record with Blocks set waits on Pause, which parks a directory pull inside its page load.
         [CultDocument("tests.conditional_slow", "tests.conditional_slow.v1")]
+        [MessagePackObject(AllowPrivate = true)]
         internal sealed class Slow
         {
             internal static volatile ManualResetEventSlim? Pause;
             internal static readonly ManualResetEventSlim Entered = new();
             internal static volatile bool Paused;
             internal static volatile bool ReadWhilePaused;
-            private bool _blocks;
-            private string _name = string.Empty;
+            [IgnoreMember] private bool _blocks;
+            [IgnoreMember] private string _name = string.Empty;
 
             [Key(0)]
             [CultName]

tests/GameCult.Caching.Tests/DirectoryStoreDurabilityTests.cs

@@ -228,6 +228,7 @@ namespace GameCult.Caching.Tests
             Path.Combine(_records, BitConverter.ToString(identity).Replace("-", string.Empty).ToLowerInvariant() + ".msgpack");
 
         [CultDocument("tests.durability_page", "tests.durability_page.v1")]
+        [MessagePackObject(AllowPrivate = true)]
         internal sealed class Page
         {
             [Key(0)]

tests/GameCult.Caching.Tests/PreCut2FixtureDocuments.cs

@@ -4,6 +4,7 @@ using MessagePack;
 namespace GameCult.Caching.Tests
 {
     [CultDocument("fixtures.precut2.item", "fixtures.precut2.item.v1")]
+    [MessagePackObject(AllowPrivate = true)]
     internal sealed class PreCut2FixtureItem
     {
         [Key(0)]
@@ -15,6 +16,7 @@ namespace GameCult.Caching.Tests
     }
 
     [CultDocument("fixtures.precut2.note", "fixtures.precut2.note.v1")]
+    [MessagePackObject(AllowPrivate = true)]
     internal sealed class PreCut2FixtureNote
     {
         [Key(0)]

tests/GameCult.Caching.Tests/StoreRoutingTests.cs

@@ -707,6 +707,7 @@ namespace GameCult.Caching.Tests
         }
 
         [CultDocument("tests.routing_note", "tests.routing_note.v1")]
+        [MessagePackObject(AllowPrivate = true)]
         internal sealed class RoutingNote
         {
             [Key(0)]
@@ -718,6 +719,7 @@ namespace GameCult.Caching.Tests
         }
 
         [CultDocument("tests.routing_other", "tests.routing_other.v1")]
+        [MessagePackObject(AllowPrivate = true)]
         internal sealed class RoutingOther
         {
             [Key(0)]
@@ -729,6 +731,7 @@ namespace GameCult.Caching.Tests
         }
 
         [CultDocument("tests.routing_gear", "tests.routing_gear.v1")]
+        [MessagePackObject]
         public class RoutingGear
         {
             [Key(0)]
@@ -736,6 +739,7 @@ namespace GameCult.Caching.Tests
         }
 
         [CultDocument("tests.routing_weapon", "tests.routing_weapon.v1")]
+        [MessagePackObject]
         public sealed class RoutingWeapon : RoutingGear
         {
             [Key(1)]
@@ -747,6 +751,7 @@ namespace GameCult.Caching.Tests
         }
 
         [CultDocument("tests.routing_leaf", "tests.routing_leaf.v1")]
+        [MessagePackObject(AllowPrivate = true)]
         internal sealed class RoutingLeaf : RoutingBase
         {
             [Key(0)]
@@ -755,6 +760,7 @@ namespace GameCult.Caching.Tests
         }
 
         [CultDocument("tests.routing_leaf_twin", "tests.routing_leaf_twin.v1")]
+        [MessagePackObject(AllowPrivate = true)]
         internal sealed class RoutingLeafTwin : RoutingBase
         {
             [Key(0)]
@@ -767,6 +773,7 @@ namespace GameCult.Caching.Tests
         }
 
         [CultDocument("tests.routing_global", "tests.routing_global.v1")]
+        [MessagePackObject(AllowPrivate = true)]
         [CultGlobal]
         internal sealed class RoutingGlobal : RoutingGlobalBase
         {

tests/GameCult.Networking.InteropPeer/Program.cs

@@ -1490,6 +1490,7 @@ static class InteropPeerShared
 }
 
 [CultDocument(InteropPeerShared.InteropDocumentType, InteropPeerShared.InteropSchemaVersion)]
+[MessagePackObject]
 public sealed class CultNetInteropNote
 {
     [Key(0)] public string SchemaVersion { get; set; } = InteropPeerShared.InteropSchemaVersion;