Update Healer Man server

src/content/contentManifest.ts

@@ -32,6 +32,26 @@ export interface ContentManifest {
   readonly files: Readonly<Record<string, ContentManifestFile>>;
 }
 
+/** Resolves runtime logical asset URLs to the independently installable packs that own them. */
+export function contentPackIdsForLogicalUrls(
+  manifest: ContentManifest,
+  logicalUrls: readonly string[],
+): readonly string[] {
+  const packIds = new Set<string>();
+  for (const logicalUrl of logicalUrls) {
+    let pathname: string;
+    try {
+      pathname = new URL(logicalUrl, "https://healer-man.invalid").pathname;
+    } catch {
+      throw new Error(`Invalid content asset URL: ${logicalUrl}`);
+    }
+    const entry = manifest.files[pathname];
+    if (!entry) throw new Error(`The content catalog is missing randomized asset ${pathname}.`);
+    packIds.add(entry.packId);
+  }
+  return [...packIds].sort();
+}
+
 function isRecord(value: unknown): value is Record<string, unknown> {
   return Boolean(value) && typeof value === "object" && !Array.isArray(value);
 }