Workspace imports could follow excluded dependency archives and decode them without a size guard.
Reuse extraction's 1 MiB limit, reject non-files before reading, and cache null results.
Add sparse-HAR and real ohpm indexing coverage while preserving legitimate import edges.
Co-authored-by: danusha2345 <ewidusoc498@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
