Update Healer Man server

src/content/contentManifest.ts

@@ -118,13 +118,31 @@ export function appVersionMeetsMinimum(current: string, minimum: string): boolea
   return true;
 }
 
+type ContentPackFiles = readonly (readonly [string, ContentManifestFile])[];
+const packFileIndexes = new WeakMap<ContentManifest["files"], ReadonlyMap<string, ContentPackFiles>>();
+const EMPTY_PACK_FILES: ContentPackFiles = [];
+
+/** Catalog file maps are immutable; index once instead of scanning during gameplay. */
 export function filesForContentPack(
   manifest: ContentManifest,
   packId: string,
 ): readonly (readonly [string, ContentManifestFile])[] {
-  return Object.entries(manifest.files)
-    .filter(([, entry]) => entry.packId === packId)
-    .sort(([left], [right]) => left.localeCompare(right));
+  let index = packFileIndexes.get(manifest.files);
+  if (!index) {
+    const groups = new Map<string, [string, ContentManifestFile][]>();
+    for (const [logicalPath, entry] of Object.entries(manifest.files)) {
+      let files = groups.get(entry.packId);
+      if (!files) {
+        files = [];
+        groups.set(entry.packId, files);
+      }
+      files.push([logicalPath, entry]);
+    }
+    for (const files of groups.values()) files.sort(([left], [right]) => left.localeCompare(right));
+    index = groups;
+    packFileIndexes.set(manifest.files, index);
+  }
+  return index.get(packId) ?? EMPTY_PACK_FILES;
 }
 
 export interface ContentFileIdentity {