Add queue listing and removal/blocklisting to the shared arr client.
The Downloads view now fetches SABnzbd and both arr queues in parallel,
shows status, progress and import problems, flags items needing
attention in the summary, and supports removing or blocklisting items.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Shared arr HTTP client with API error handling, plus Radarr lookup,
add movie, search and quality profile / root folder / status endpoints.
Tested against httptest fixtures.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>