feat(multi-pdf): enhance PDF multi-tool functionality to allow drag n drop of PDF and images

fix(ocr): pin font CDN to rawcdn.githack.com with commit SHAs

src/tests/multi-tool-file-input.test.ts

@@ -0,0 +1,94 @@
+import { describe, it, expect, vi } from 'vitest';
+
+vi.mock('heic2any', () => ({
+  default: vi.fn(),
+}));
+
+import { partitionIncomingFiles } from '../js/utils/multi-tool-file-input';
+
+function makeFile(name: string, type: string): File {
+  return new File([new Uint8Array([1, 2, 3])], name, { type });
+}
+
+describe('partitionIncomingFiles', () => {
+  it('routes PDFs by MIME type', () => {
+    const result = partitionIncomingFiles([
+      makeFile('a.pdf', 'application/pdf'),
+      makeFile('b.pdf', 'application/pdf'),
+    ]);
+    expect(result.pdfFiles).toHaveLength(2);
+    expect(result.imageFiles).toHaveLength(0);
+    expect(result.skipped).toHaveLength(0);
+  });
+
+  it('routes PDFs by extension when MIME is missing', () => {
+    const result = partitionIncomingFiles([makeFile('doc.pdf', '')]);
+    expect(result.pdfFiles).toHaveLength(1);
+    expect(result.imageFiles).toHaveLength(0);
+  });
+
+  it('routes PDFs with uppercase extension', () => {
+    const result = partitionIncomingFiles([makeFile('SCAN.PDF', '')]);
+    expect(result.pdfFiles).toHaveLength(1);
+  });
+
+  it('routes images by MIME type', () => {
+    const result = partitionIncomingFiles([
+      makeFile('a.png', 'image/png'),
+      makeFile('b.jpg', 'image/jpeg'),
+      makeFile('c.webp', 'image/webp'),
+    ]);
+    expect(result.imageFiles).toHaveLength(3);
+    expect(result.pdfFiles).toHaveLength(0);
+  });
+
+  it('routes images by extension when MIME is missing (HEIC, BMP, TIFF)', () => {
+    const result = partitionIncomingFiles([
+      makeFile('photo.heic', ''),
+      makeFile('scan.bmp', ''),
+      makeFile('page.tiff', ''),
+    ]);
+    expect(result.imageFiles).toHaveLength(3);
+    expect(result.skipped).toHaveLength(0);
+  });
+
+  it('splits a mixed batch into PDFs, images, and skipped', () => {
+    const result = partitionIncomingFiles([
+      makeFile('doc.pdf', 'application/pdf'),
+      makeFile('photo.png', 'image/png'),
+      makeFile('readme.txt', 'text/plain'),
+      makeFile('archive.zip', 'application/zip'),
+    ]);
+    expect(result.pdfFiles).toHaveLength(1);
+    expect(result.imageFiles).toHaveLength(1);
+    expect(result.skipped).toEqual(['readme.txt', 'archive.zip']);
+  });
+
+  it('preserves original File order within each bucket', () => {
+    const a = makeFile('a.pdf', 'application/pdf');
+    const b = makeFile('b.png', 'image/png');
+    const c = makeFile('c.pdf', 'application/pdf');
+    const d = makeFile('d.jpg', 'image/jpeg');
+
+    const result = partitionIncomingFiles([a, b, c, d]);
+    expect(result.pdfFiles).toEqual([a, c]);
+    expect(result.imageFiles).toEqual([b, d]);
+  });
+
+  it('returns empty buckets for empty input', () => {
+    const result = partitionIncomingFiles([]);
+    expect(result.pdfFiles).toHaveLength(0);
+    expect(result.imageFiles).toHaveLength(0);
+    expect(result.skipped).toHaveLength(0);
+  });
+
+  it('skips files with neither matching MIME nor extension', () => {
+    const result = partitionIncomingFiles([
+      makeFile('script.js', 'application/javascript'),
+      makeFile('data.csv', 'text/csv'),
+    ]);
+    expect(result.skipped).toHaveLength(2);
+    expect(result.pdfFiles).toHaveLength(0);
+    expect(result.imageFiles).toHaveLength(0);
+  });
+});