refactor: 리펙토링

tests/unit/optimistic-layer-runtime.test.ts

@@ -6,6 +6,7 @@ import { createRuntimeIdentityRegistry } from "../../src/contracts/query-keys.ts
 
 function scope() {
   let current = true;
+  const lifetime = new AbortController();
   return {
     snapshot: {
       generation: 1,
@@ -13,10 +14,12 @@ function scope() {
       identities: createRuntimeIdentityRegistry({
         tokenFactory: () => crypto.randomUUID(),
       }),
+      signal: lifetime.signal,
       isCurrent: () => current,
     },
     expire: () => {
       current = false;
+      lifetime.abort();
     },
   };
 }