chore: ignore root itemize binary

[eshaffer321]

Adds /itemize to .gitignore so the locally built CLI in the repo root is not accidentally committed.

The binary is produced by make build or go build -o itemize ./cmd/itemize/.

Made with Cursor

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 56.36%. Comparing base (1fa1cb2) to head (a007f7d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #19   +/-   ##
=======================================
  Coverage   56.36%   56.36%           
=======================================
  Files          43       43           
  Lines        4801     4801           
=======================================
  Hits         2706     2706           
  Misses       1931     1931           
  Partials      164      164           

Flag	Coverage Δ
unittests	56.36% <ø> (ø)

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