[16.0][IMP] update dotfiles

[eantones]

Summary

• Update copier template dotfiles to latest version
• Adds .gitattributes, updates .pre-commit-config.yaml, CI workflows, and pylint configs
• Removes obsolete README.md

Test plan

• Verify pre-commit CI passes
• Verify test CI passes

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 44.03%. Comparing base (98308a2) to head (8ae3ce1).
⚠️ Report is 72 commits behind head on 16.0.

Additional details and impacted files

@@            Coverage Diff             @@
##             16.0      #85      +/-   ##
==========================================
- Coverage   44.24%   44.03%   -0.21%     
==========================================
  Files         271      283      +12     
  Lines        7500     8007     +507     
  Branches     1454     1543      +89     
==========================================
+ Hits         3318     3526     +208     
- Misses       4087     4386     +299     
  Partials       95       95              

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