Scene authoring: ConversionStatue prefab, registration and wiring

- ConversionStatue.prefab: Hider variant stripped of player-only components
  (NetworkPlayerSetup, PlayerAnimationSync, ConcealmentMeter, PlayerScaler),
  controllers disabled, MatchStatue added.
- DefaultNetworkPrefabs.asset: register the statue prefab.
- Main.unity: wire MatchManager.statuePrefab.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Assets/Scenes/Main.unity

@@ -770,6 +770,7 @@ MonoBehaviour:
   hunterPrefab: {fileID: 3510981371713521867, guid: cf153a3aea3d5da4f9d4cdbff0be8180, type: 3}
   hiderPrefab: {fileID: 5508335275054701003, guid: 6b0b58e8352625343951db00beb8cb0a, type: 3}
   spectatorPrefab: {fileID: 2945604797830805689, guid: 6e001668808a3d64680522e4c8d582b0, type: 3}
+  statuePrefab: {fileID: 5508335275054701003, guid: 883d1d5c434f5a44884d1ef38a3a5db5, type: 3}
   hunterCount: 1
   lobbySpawnCenter: {x: 0, y: 1, z: 0}
   matchSpawnCenter: {x: 0, y: 1, z: 0}
@@ -812,7 +813,7 @@ MonoBehaviour:
   m_EditorClassIdentifier: Unity.Multiplayer.Tools.NetworkSimulator.Runtime::Unity.Multiplayer.Tools.NetworkSimulator.Runtime.NetworkSimulator
   m_PresetAsset: {fileID: 0}
   m_PresetReference:
-    rid: 4015181309769678916
+    rid: 4015181309769678917
   m_Scenario:
     rid: -2
   m_IsScenarioSettingsFolded: 0
@@ -822,7 +823,7 @@ MonoBehaviour:
     RefIds:
     - rid: -2
       type: {class: , ns: , asm: }
-    - rid: 4015181309769678916
+    - rid: 4015181309769678917
       type: {class: NetworkSimulatorPreset, ns: Unity.Multiplayer.Tools.NetworkSimulator.Runtime, asm: Unity.Multiplayer.Tools.NetworkSimulator.Runtime}
       data:
         <Name>k__BackingField: 'Mobile 2G [CDMA & GSM, ''00]'