🐛 Take swing at thread safety for AT client

[akrherz]

refs #93

won't claim victory just yet

[deepsource-io]

Here's the code health analysis summary for commits 0418565..a9101cb. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
Shell	✅ Success		View Check ↗
Python	✅ Success		View Check ↗

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[codecov]

Codecov Report

Attention: Patch coverage is 25.00000% with 54 lines in your changes missing coverage. Please review.

Project coverage is 40.68%. Comparing base (0418565) to head (a9101cb).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/iembot/atworker.py	25.39%	47 Missing ⚠️
src/iembot/util.py	0.00%	6 Missing ⚠️
src/iembot/basicbot.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #94      +/-   ##
==========================================
+ Coverage   40.58%   40.68%   +0.10%     
==========================================
  Files           7        8       +1     
  Lines        1168     1202      +34     
==========================================
+ Hits          474      489      +15     
- Misses        694      713      +19     

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