fix: validate favorite folder removal

src/content/market/favorites-store.ts

@@ -107,6 +107,11 @@ export function createFavoritesRepository(options: {
     },
     async removeCreatorFromFolder(authorId, folderId) {
       await mutate((state) => {
+        const folder = state.folders.find((item) => item.id === folderId);
+        if (!folder) {
+          throw new Error(`收藏夹不存在: ${folderId}`);
+        }
+
         state.memberships = state.memberships.filter(
           (membership) =>
             membership.authorId !== authorId || membership.folderId !== folderId

tests/favorites-store.test.ts

@@ -136,6 +136,21 @@ describe("favorites-store", () => {
     });
   });
 
+  test("rejects removal from an unknown folder without changing state", async () => {
+    const { repository } = createRepository();
+    const folder = await repository.createFolder("合作");
+    await repository.setCreatorFolderIds(
+      { authorId: "author-1", authorName: "Alice" },
+      [folder.id]
+    );
+    const beforeRemoval = await repository.read();
+
+    await expect(
+      repository.removeCreatorFromFolder("author-1", "missing")
+    ).rejects.toThrow("收藏夹不存在");
+    await expect(repository.read()).resolves.toEqual(beforeRemoval);
+  });
+
   test("recovers from malformed, duplicate, and dangling stored values", async () => {
     const { repository } = createRepository(
       createMemoryStorage({