feat: dev mode on client, check client configuration

[hifabienne]

No description provided.

[codecov]

Codecov Report

Merging #41 into master will increase coverage by 0.61%.
The diff coverage is 78.57%.

@@            Coverage Diff             @@
##           master      #41      +/-   ##
==========================================
+ Coverage   14.37%   14.98%   +0.61%     
==========================================
  Files          23       23              
  Lines         925      934       +9     
==========================================
+ Hits          133      140       +7     
- Misses        788      789       +1     
- Partials        4        5       +1     

Impacted Files	Coverage Δ
pkg/op/tokenrequest.go	0.00% <0.00%> (ø)
pkg/op/authrequest.go	41.86% <80.95%> (+3.46%)	⬆️
pkg/op/client.go	100.00% <100.00%> (ø)
pkg/op/error.go	42.55% <0.00%> (-8.52%)	⬇️

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[github-actions]

🎉 This PR is included in version 0.7.0 🎉

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