Handle qBittorrent accepted-but-unverified adds to avoid false 500 failures

[Copilot]

In some UNRAID/Docker setups, qBittorrent returns Ok. for URL-based torrent add, but Questarr fails immediate verification and then hits a 500 from indexer fallback download, resulting in a false "All downloaders failed" response. This change preserves success semantics when qBittorrent has already accepted the add.

• Downloader behavior: accepted-but-unverified path

  • In QBittorrentClient.addDownload, track when non-magnet URL add returns Ok. but no torrent is immediately observable.
  • If fallback .torrent fetch fails afterward, return success (accepted by qBittorrent) instead of surfacing a hard failure.

• Failure-mode handling

  • Restricts this behavior to the specific non-magnet case where qBittorrent explicitly acknowledged URL add.
  • Keeps existing magnet behavior and fallback logic unchanged for other error paths.

• Regression coverage

  • Added focused test for: URL add Ok. → verification miss → fallback fetch 500 → operation treated as accepted.

if (urlAddAcceptedButUnverified) {
  return {
    success: true,
    message: "Download accepted by qBittorrent but could not be verified immediately",
  };
}

[Doezer]

/deploy tag=test-qbit-500

[codecov]

Codecov Report

❌ Patch coverage is 82.97872% with 8 lines in your changes missing coverage. Please review.
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
server/downloaders/qbittorrent.ts	82.97%	8 Missing ⚠️

📢 Thoughts on this report? Let us know!

[Doezer]

/deploy tag=test-qbit-500

[Doezer]

/deploy tag=test-qbit-500

[Doezer]

/deploy tag=test-qbit-500

Deployment Summary

• Environment: test
• Image: ghcr.io/Doezer/Questarr
• Docker Hub: doezer/questarr
• Tags: ghcr.io/doezer/questarr:test-qbit-500
  ghcr.io/doezer/questarr:test-sha-ade8b11
  doezer/questarr:test-qbit-500
  doezer/questarr:test-sha-ade8b11

Pull and run the image:

docker pull ghcr.io/Doezer/Questarr:$TAG
docker run -d -p 5000:5000 \
  -e POSTGRES_PASSWORD=your_password \
  -e IGDB_CLIENT_ID=your_client_id \
  -e IGDB_CLIENT_SECRET=your_client_secret \
  ghcr.io/Doezer/Questarr:$TAG

[sonarqubecloud]

Quality Gate failed

Failed conditions
1 Security Hotspot
15.8% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube Cloud