fix(ci): 누락 파일 추가 및 AssetManager 경로 전략 변경사항 포함

lib/exporter/assets.index.ts

@@ -0,0 +1,21 @@
+import type { AssetManager } from '@/lib/assets/assetManager'
+
+export type AssetsIndex = {
+  images: string[]
+  fonts: string[]
+  other: string[]
+}
+
+export function buildAssetsIndex(am: AssetManager): Uint8Array {
+  const images: string[] = []
+  const fonts: string[] = []
+  const other: string[] = []
+  for (const ref of am.list()) {
+    if (ref.mimeType.startsWith('image/')) images.push(ref.path)
+    else if (ref.mimeType.startsWith('font/')) fonts.push(ref.path)
+    else other.push(ref.path)
+  }
+  const obj: AssetsIndex = { images, fonts, other }
+  const json = JSON.stringify(obj, null, 2)
+  return new TextEncoder().encode(json)
+}