docs: anonymise project asset names in source comments

Measured figures are kept; only the studio-specific level and asset
names are generalised, and the Perforce rationale is reworded to
describe the class of setups rather than this one project.

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

Source/AssetUsageAuditCore/Private/LevelUsageResolver.cpp

@@ -243,8 +243,8 @@ void FLevelUsageResolver::TraverseLevel(int32 LevelIndex, const FLevelUsageResol
             }
 
             // Reaching another World is NOT automatically a sublevel. An earlier version assumed it
-            // was, and on WP_Main that assumption pulled the whole of L_MainLevel in through
-            // BP_FirstPersonGameMode -> PDA_MenuSystemConfig: 9994 of 18136 rows belonged to a
+            // was, and on WP_Example that assumption pulled the whole of L_Other in through
+            // BP_GameMode -> PDA_MenuConfig: 9994 of 18136 rows belonged to a
             // different map. A crossing only counts when the reference comes from the level package
             // itself or from one of its external actor packages, which is the shape a streaming
             // sublevel or a Level Instance actually has.