feat: initial prototype works

I can log in and create a book! Woo!

apps/frontend/src/app/services/books.service.ts

@@ -0,0 +1,37 @@
+/**
+ * @copyright 2026 NHCarrigan
+ * @license Naomi's Public License
+ * @author Naomi Carrigan
+ */
+
+import { Injectable } from '@angular/core';
+import { Observable } from 'rxjs';
+import { ApiService } from './api.service';
+import { Book, CreateBookDto, UpdateBookDto } from '@library/shared-types';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class BooksService {
+  constructor(private api: ApiService) {}
+
+  getAllBooks(): Observable<Book[]> {
+    return this.api.get<Book[]>('/books');
+  }
+
+  getBookById(id: string): Observable<Book | null> {
+    return this.api.get<Book | null>(`/books/${id}`);
+  }
+
+  createBook(book: CreateBookDto): Observable<Book> {
+    return this.api.post<Book>('/books', book);
+  }
+
+  updateBook(id: string, book: UpdateBookDto): Observable<Book> {
+    return this.api.put<Book>(`/books/${id}`, book);
+  }
+
+  deleteBook(id: string): Observable<{ success: boolean }> {
+    return this.api.delete<{ success: boolean }>(`/books/${id}`);
+  }
+}