feat: 기능 추가 과정중

tests/recipes/optional-capability-contracts.test.ts

@@ -14,7 +14,7 @@ import {
   MemoryOfflineRepository,
   RecordingAnalyticsAdapter,
   createUnavailableAdapters,
-} from "../../recipes/frontend-capabilities/index.js";
+} from "../../recipes/frontend-capabilities/index.ts";
 
 describe("optional capability recipes", () => {
   it("requires realtime cleanup and rejects duplicate or out-of-order events", async () => {
@@ -76,7 +76,17 @@ describe("optional capability recipes", () => {
     const progress: number[] = [];
     const controller = new AbortController();
     const uploaded = await adapter.upload({
-      file: { name: "safe.txt", size: 4, type: "text/plain" },
+      file: {
+        name: "safe.txt",
+        size: 4,
+        type: "text/plain",
+        content: {
+          byteLength: 4,
+          chunks: (async function* () {
+            yield new TextEncoder().encode("safe");
+          })(),
+        },
+      },
       signal: controller.signal,
       onProgress(value) {
         progress.push(value.transferredBytes);