Added missing partial word indicator for inserts

[borgholt]

Description

• Fixed (i.e., added) missing indicator for partial word on INSERT alignments

[Copilot]

Pull request overview

This PR fixes a bug where the partial word indicator was missing for INSERT alignments. The change ensures that compound word boundaries are properly tracked when creating insert operations.

Changes:

• Added left_compound and right_compound fields to INSERT alignment operations to indicate partial word boundaries

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.38%. Comparing base (6b43bd2) to head (9c01562).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #17   +/-   ##
=======================================
  Coverage   93.38%   93.38%           
=======================================
  Files           9        9           
  Lines         635      635           
  Branches      102      102           
=======================================
  Hits          593      593           
  Misses         15       15           
  Partials       27       27           

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