Make NPU failures non-fatal

[superm1]

They are only fatal if the driver loaded but didn't bind (due to a problem). So just add some messaging about a missing driver and warning if it didn't load.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.90%. Comparing base (e782459) to head (4fb47d3).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #34      +/-   ##
==========================================
+ Coverage   85.89%   85.90%   +0.01%     
==========================================
  Files          34       34              
  Lines        7694     7693       -1     
  Branches      724      724              
==========================================
  Hits         6609     6609              
+ Misses        872      871       -1     
  Partials      213      213              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.