Add /verify-deployment-pr skill for deploy-PR review

[sparrowDom]

Project-scoped Claude Code skill that audits an executed mainnet deploy PR:
checks deployed contracts are documented, verified code matches via sol2uml
diff, constructor args + initialize tx match the deploy file, and the on-chain
governance proposal matches the script's actions. Validated against #2921.

This comment is the result of the automated deployment review: #2921 (comment)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 45.06%. Comparing base (dea63eb) to head (bc18656).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2922   +/-   ##
=======================================
  Coverage   45.06%   45.06%           
=======================================
  Files         110      110           
  Lines        4920     4920           
  Branches     1362     1362           
=======================================
  Hits         2217     2217           
  Misses       2699     2699           
  Partials        4        4           

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