Performance optimizations: sound caching, renderer culling, entity and lighting improvements

- Sound engine: cache filesystem probe results to avoid repeated file existence checks; add MA_SOUND_FLAG_DECODE for pre-decoded playback
- Level renderer: column-level frustum culling, compact visible chunk lists to skip empty iteration, lightweight second-pass render path, early-out for non-dirty chunks, scaled recheck period at high render distances
- Entity: cache shared_from_this() to reduce reference counting overhead in move() and checkInsideTiles()
- Level: skip checkLight() when tile light properties unchanged; enable entity locking on all platforms (not just Vita)
- LevelChunk: only rescan min height when the minimum column changes; defer lightGap processing
- LivingEntity: use raw pointer cast instead of dynamic_pointer_cast; cache friction tile lookup
- ServerPlayerGameMode: return whether block was destroyed to avoid redundant tile update packets

Minecraft.Client/ServerPlayerGameMode.cpp

@@ -172,7 +172,7 @@ void ServerPlayerGameMode::startDestroyBlock(int x, int y, int z, int face)
 	}
 }
 
-void ServerPlayerGameMode::stopDestroyBlock(int x, int y, int z)
+bool ServerPlayerGameMode::stopDestroyBlock(int x, int y, int z)
 {
 	if (x == xDestroyBlock && y == yDestroyBlock && z == zDestroyBlock)
 	{
@@ -188,6 +188,7 @@ void ServerPlayerGameMode::stopDestroyBlock(int x, int y, int z)
 				isDestroyingBlock = false;
 				level->destroyTileProgress(player->entityId, x, y, z, -1);
 				destroyBlock(x, y, z);
+				return true;
 			}
 			else if (!hasDelayedDestroy)
 			{
@@ -198,9 +199,11 @@ void ServerPlayerGameMode::stopDestroyBlock(int x, int y, int z)
 				delayedDestroyY = y;
 				delayedDestroyZ = z;
 				delayedTickStart = destroyProgressStart;
+				return true;
 			}
 		}
 	}
+	return false;
 }
 
 void ServerPlayerGameMode::abortDestroyBlock(int x, int y, int z)