fix(salary): skip Excel logical cells instead of importing them as numbers (#664)

* fix(salary): skip Excel logical cells instead of importing numbers

* test: skip Excel CLI case when openpyxl is unavailable

* changelog: place the #664 entry under [Unreleased]

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Mads Lorentzen <madslorentzen_17@hotmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -308,6 +308,11 @@ per-file diff commands.
   now a date pair; `1500–2000` and `2000–5000` stay quantities. Two new `test_verify_pdf.py`
   cases; the date-pair one fails on master.
 
+- **Excel logical cells no longer become salary numbers** (#664, `tools/convert_salary_excel.py`) -
+  `TRUE` and `FALSE` cells are skipped as non-numeric instead of turning into counts or
+  salary indices of 1 and 0. Numeric 0 and 1 remain valid, and a count/index pair retains
+  its numeric half when the other cell is logical.
+
 ### Security
 
 - **CI no longer leaves the job token in `.git/config` or expands a PR-controlled name into a