feat(downloads): prefill Add modal from clipboard (#10)

src/utils/clipboard.test.ts

@@ -0,0 +1,31 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+import { readClipboardDownloadUrls } from './clipboard';
+import { readText } from '@tauri-apps/plugin-clipboard-manager';
+
+vi.mock('@tauri-apps/plugin-clipboard-manager', () => ({
+  readText: vi.fn(),
+}));
+
+describe('clipboard URL extraction', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('reads only supported, unique download URLs from clipboard text', async () => {
+    vi.mocked(readText).mockResolvedValue(
+      'https://example.com/file.zip\nhttps://example.com/file.zip ftp://example.com/file.bin mailto:user@example.com'
+    );
+
+    await expect(readClipboardDownloadUrls()).resolves.toEqual([
+      'https://example.com/file.zip',
+      'ftp://example.com/file.bin',
+    ]);
+  });
+
+  it('preserves clipboard read failures for the caller to handle', async () => {
+    const error = new Error('clipboard unavailable');
+    vi.mocked(readText).mockRejectedValue(error);
+
+    await expect(readClipboardDownloadUrls()).rejects.toBe(error);
+  });
+});

src/utils/clipboard.ts

@@ -0,0 +1,7 @@
+import { readText } from '@tauri-apps/plugin-clipboard-manager';
+import { extractValidDownloadUrls } from './url';
+
+export const readClipboardDownloadUrls = async (): Promise<string[]> => {
+  const clipboardText = await readText();
+  return extractValidDownloadUrls(clipboardText);
+};