BeamSplit v1.6.1

BeamSplit v1.6.1 makes personal mods genuinely shared and zero-copy.

• Every player profile now mounts the same existing mod library through a Windows
  directory junction instead of storing another copy of each ZIP.
• The normal BeamNG mods\repo folder is detected by default, so every local player
  sees the same packages immediately with essentially no additional storage.
• BeamSplit never writes to the mounted source library.
• The multiplayer folder is excluded from the mount, keeping the pinned BeamMP client
  and server downloads isolated.
• The Mods page is simpler: one switch shares the library with all local profiles;
  per-package checkboxes now mean only “BeamMP server sends this.”
• Server packages still support curated BeamSplit mod packs and remain tracked so
  hand-installed files are not overwritten or removed.

Validation: Release and portable publish completed with 0 warnings and 0 errors. The
shipping EXE created junctions for two temporary player profiles, read one source ZIP
through both, removed both links, and verified that the source remained untouched. All
existing BeamMP, auto-join, audio, screen-layout, and setup checks also passed.