fix: exercise production evidence asset lookup

src/features/tech-log/adapters/static/evidence-assets.ts

@@ -0,0 +1,25 @@
+export const evidenceAssets = {
+  "fetch-strategy-boundary": {
+    src: "/media/fetch-strategy-boundary.svg",
+    width: 1080,
+    height: 420,
+    triggerLabel: "Fetch Join과 Batch Fetch 비교 다이어그램 크게 보기",
+    dialogLabel: "Fetch Join과 Batch Fetch의 페이징 경계 확대",
+  },
+} as const;
+
+export type SupportedEvidenceKey = keyof typeof evidenceAssets;
+
+export function isSupportedEvidenceKey(
+  key: string,
+): key is SupportedEvidenceKey {
+  return Object.hasOwn(evidenceAssets, key);
+}
+
+export function getEvidenceAsset(key: string) {
+  if (!isSupportedEvidenceKey(key)) {
+    throw new Error(`Unknown local evidence asset: ${key}`);
+  }
+
+  return evidenceAssets[key];
+}