Fix: Compile errors - variable naming and missing using

- Rename lambda variable 'v' to 'w' to avoid conflict with local 'v'
- Rename local Villager 'v' to 'newVillager' for clarity
- Add missing 'using Assets.Interface' for IResourceStorage

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

LoadSaveOverrides/MultiplayerSaveContainer.cs

@@ -1,4 +1,5 @@
 using Assets.Code;
+using Assets.Interface;
 using Riptide;
 using Riptide.Transports;
 using Steamworks;