fix: floating bookmarks

- update floating bookmarks
- fix search suggestions
- fix filters

frontend/src/api/books.ts

@@ -44,15 +44,25 @@ export const booksApi = {
   },
 
   async getGenres(): Promise<string[]> {
-    const { data } = await api.get<string[]>("/books/genres/");
+    const { data } = await api.get<string[]>("/books/ebooks/genres/");
     return data;
   },
 
   async getAuthors(): Promise<string[]> {
-    const { data } = await api.get<string[]>("/books/authors/");
+    const { data } = await api.get<string[]>("/books/ebooks/authors/");
     return data;
   },
 
+  async searchEBooks(params: { q: string; page_size?: number }): Promise<EBookListItem[]> {
+    const { data } = await api.get<{ count: number; results: EBookListItem[] } | EBookListItem[]>(
+      "/books/ebooks/",
+      { params: { q: params.q.trim() } },
+    );
+    const items = Array.isArray(data) ? data : data.results ?? [];
+    const limit = params.page_size ?? items.length;
+    return items.slice(0, limit);
+  },
+
   async uploadEBook(
     file: File,
     title: string,