Improve powerstore error handling

[Stebalien]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 76.18%. Comparing base (c438aa5) to head (caafbc8).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/powerstore/powerstore.go	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #676      +/-   ##
==========================================
- Coverage   76.24%   76.18%   -0.06%     
==========================================
  Files          65       65              
  Lines        5421     5422       +1     
==========================================
- Hits         4133     4131       -2     
- Misses        884      889       +5     
+ Partials      404      402       -2     

Files with missing lines	Coverage Δ
internal/powerstore/powerstore.go	64.50% <33.33%> (-0.83%)	⬇️

... and 4 files with indirect coverage changes