chore: sync bundled rules + intel snapshot to 2026.05.19.1

[kurtpayne]

Closing per maintainer — superseded by #243 which already brought the bundled snapshot to 2026.05.19.1.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.90%. Comparing base (5278428) to head (e757ee0).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #241   +/-   ##
=======================================
  Coverage   75.90%   75.90%           
=======================================
  Files          41       41           
  Lines        5994     5994           
=======================================
  Hits         4550     4550           
  Misses       1444     1444           

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[kurtpayne]

Closing — superseded by #243 which brought the bundled snapshot to 2026.05.19.1 in a single catch-up sync on 2026-05-20. Stale daily-agent sync that hit the prior 30-min CI timeout; #242 bumped the timeout to 45 min.