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/AssetUsageAuditEditor/Private/SAssetUsageAuditPanel.cpp

@@ -374,7 +374,7 @@ void SAssetUsageAuditPanel::Construct(const FArguments& InArgs)
                         }
 
                         // Name the level when there is one, count them when there are several:
-                        // a button reading "WP_Main" is worth more than one reading "1 level".
+                        // a button reading "WP_Example" is worth more than one reading "1 level".
                         if (LevelFilters.Num() == 1)
                         {
                             return FText::FromString(FPackageName::GetShortName(*LevelFilters.CreateConstIterator()));