Add ROOTLESS_CONTAINER and request UI updates

Introduce ROOTLESS_CONTAINER env to opt out of gosu (replace /proc uid_map detection) and update entrypoint messaging; adjust app-start.sh and redis-start.sh to skip gosu when ROOTLESS_CONTAINER=true and warn on UID/GID mismatch only when applicable. Backend: include audiobook audibleAsin in admin requests response (mapped to asin) and pass baseUrl through test-flaresolverr endpoint to the FlareSolverr tester. Frontend: RecentRequestsTable and RequestActionsDropdown now surface asin, accept/passthrough annasArchiveBaseUrl, and add a "View Details" flow using AudiobookDetailsModal; admin page passes ebook baseUrl from settings. InteractiveTorrentSearchModal refactor: improved UX/UI, keyboard handling, portal/modal mounting, skeleton/loading states, formatting helpers, and richer result display. Tests updated to match changes.

tests/app/admin/components/RequestActionsDropdown.test.tsx

@@ -74,6 +74,29 @@ describe('RequestActionsDropdown', () => {
     expect(onDelete).toHaveBeenCalledWith('req-1', 'Pending Book');
   });
 
+  it('uses configured base URL for ebook View Source link', () => {
+    render(
+      <RequestActionsDropdown
+        request={{
+          requestId: 'req-ebook',
+          title: 'Ebook Title',
+          author: 'Author',
+          status: 'downloaded',
+          type: 'ebook',
+          torrentUrl: JSON.stringify(['https://annas-archive.li/slow_download/abc123def456abc123def456abc123de/0/5']),
+        }}
+        onManualSearch={vi.fn().mockResolvedValue(undefined)}
+        onCancel={vi.fn().mockResolvedValue(undefined)}
+        onDelete={vi.fn()}
+        annasArchiveBaseUrl="https://custom-mirror.org"
+      />
+    );
+
+    fireEvent.click(screen.getByTitle('Actions'));
+    const viewSourceLink = screen.getByText('View Source').closest('a');
+    expect(viewSourceLink).toHaveAttribute('href', 'https://custom-mirror.org/md5/abc123def456abc123def456abc123de');
+  });
+
   it('shows view source and ebook fetch when available', async () => {
     const onFetchEbook = vi.fn().mockResolvedValue(undefined);
     const onDelete = vi.fn();

tests/app/admin/settings/tabs/EbookTab/useEbookSettings.test.tsx

@@ -75,7 +75,7 @@ describe('useEbookSettings', () => {
     expect(result.current.flaresolverrTestResult?.message).toContain('Please enter a FlareSolverr URL');
   });
 
-  it('tests FlareSolverr connection successfully', async () => {
+  it('tests FlareSolverr connection successfully and sends baseUrl', async () => {
     fetchWithAuthMock.mockResolvedValueOnce({
       ok: true,
       json: async () => ({ success: true, message: 'OK' }),
@@ -91,6 +91,10 @@ describe('useEbookSettings', () => {
     });
 
     expect(result.current.flaresolverrTestResult?.success).toBe(true);
+    // Verify baseUrl is included in the request body
+    const callBody = JSON.parse(fetchWithAuthMock.mock.calls[0][1].body);
+    expect(callBody.baseUrl).toBe('https://annas-archive.li');
+    expect(callBody.url).toBe('http://flare');
   });
 
   it('handles FlareSolverr test failures', async () => {