Problem description

When a bitstream is downloaded by name (e.g., https://dev-5.pc:8443/repository/bitstream/123456789/2-5947/0/test.txt), it redirects to https://dev-5.pc:8443/bitstreams/525188bc-7d2e-4ed6-a6d7-1a4b031b67b7/download, but the /repository prefix is missing in the redirected URL.

Summary by CodeRabbit

• Bug Fixes

  • Legacy bitstream links now redirect correctly when a UI namespace is configured, preventing broken downloads.
  • Redirects use a permanent (301) redirect to improve bookmarking and SEO.
  • Falls back to a not-found page when the target bitstream cannot be resolved.

• New Features

  • Namespace-aware redirect behavior that sanitizes configured namespaces to avoid malformed redirects.
  • Multi-file curl download support using shell brace expansion to fetch individual bitstreams with remote filenames.