Clear OCP CAD Viewer in view if no geometry collected after run

[smkent]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.50%. Comparing base (52e73c0) to head (b4d20f6).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #200   +/-   ##
=======================================
  Coverage   90.49%   90.50%           
=======================================
  Files          43       43           
  Lines        2642     2644    +2     
  Branches      341      341           
=======================================
+ Hits         2391     2393    +2     
  Misses        162      162           
  Partials       89       89           

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