fix(metadata): handle large Hardcover libraries

Bind book IDs as a PostgreSQL array so import previews do not exceed the wire-protocol parameter limit for large libraries.

Fixes #1196

server/src/modules/hardcover/hardcover.repository.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect, it, vi, beforeEach } from 'vitest';
 import { Permission } from '@bookorbit/types';
+import { PgDialect } from 'drizzle-orm/pg-core';
 
 import * as schema from '../../db/schema';
 import { HardcoverRepository } from './hardcover.repository';
@@ -126,6 +127,17 @@ describe('HardcoverRepository', () => {
     expect(bookStateQuery.findMany).toHaveBeenCalledTimes(1);
   });
 
+  it('findBookStatesByBookIds binds large ID lists as one PostgreSQL array parameter', async () => {
+    const { repo, bookStateQuery } = makeRepository();
+    const bookIds = Array.from({ length: 65_535 }, (_, index) => index + 1);
+
+    await repo.findBookStatesByBookIds(7, bookIds);
+
+    const config = bookStateQuery.findMany.mock.calls[0]![0] as { where: Parameters<PgDialect['sqlToQuery']>[0] };
+    const query = new PgDialect().sqlToQuery(config.where);
+    expect(query.params).toEqual([7, bookIds]);
+  });
+
   it('upsertBookState inserts or updates per-book state', async () => {
     const { repo, db, bookStateInsert, bookStateRow } = makeRepository();
     db.insert.mockReset();

server/src/modules/hardcover/hardcover.repository.ts

@@ -130,7 +130,7 @@ export class HardcoverRepository {
   async findBookStatesByBookIds(userId: number, bookIds: number[]): Promise<HardcoverBookState[]> {
     if (bookIds.length === 0) return [];
     return this.db.query.hardcoverBookState.findMany({
-      where: and(eq(schema.hardcoverBookState.userId, userId), inArray(schema.hardcoverBookState.bookId, bookIds)),
+      where: and(eq(schema.hardcoverBookState.userId, userId), sql`${schema.hardcoverBookState.bookId} = any(${sql.param(bookIds)}::integer[])`),
     });
   }