파일 시스템 관련 상태와 변경 로직을 도메인 모듈로 통합하여 캐시가 자동으로 갱신되도록 개선하고 오류를 토스트로 표시하도록 변경

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/lib/features/favorites/index.ts

@@ -0,0 +1,54 @@
+import {
+  getDirectoryInfo,
+  getFileInfo,
+  setDirectoryFavorite,
+  setFileFavorite,
+  type LocalDirectoryInfo,
+  type SummarizedFileInfo,
+} from "#lib/features/filesystem/index.js";
+import { sortEntries } from "#lib/utils/index.js";
+import { trpc } from "#trpc/client.js";
+
+export type FavoriteEntry =
+  | { type: "directory"; name: string; details: LocalDirectoryInfo }
+  | { type: "file"; name: string; details: SummarizedFileInfo };
+
+export const getFavoriteEntries = async () => {
+  const favorites = await trpc.favorites.get.query();
+  const [directories, files] = await Promise.all([
+    Promise.all(
+      favorites.directories.map((directory) =>
+        getDirectoryInfo(directory.id, { serverResponse: { ...directory, isFavorite: true } }),
+      ),
+    ),
+    Promise.all(
+      favorites.files.map((file) =>
+        getFileInfo(file.id, { serverResponse: { ...file, isFavorite: true } }),
+      ),
+    ),
+  ]);
+  return [
+    ...sortEntries(
+      directories.map((directory): FavoriteEntry => ({
+        type: "directory",
+        name: directory.name!,
+        details: directory as LocalDirectoryInfo,
+      })),
+    ),
+    ...sortEntries(
+      files.map((file): FavoriteEntry => ({
+        type: "file",
+        name: file.name!,
+        details: file as SummarizedFileInfo,
+      })),
+    ),
+  ];
+};
+
+export const removeFavorite = async ({ type, details }: FavoriteEntry) => {
+  if (type === "directory") {
+    await setDirectoryFavorite(details, false);
+  } else {
+    await setFileFavorite(details, false);
+  }
+};