v0.3.7

v0.3.7 Release Notes

PR #44

This release adds formula extraction to the structured output, expanding the
pipeline, models, and backends while keeping the existing modes and fallbacks.

Highlights

• Added formulas_map extraction (formula string -> cell coordinates) via
  openpyxl for .xlsx/.xlsm and COM for .xls, with include_formulas_map option
  and verbose default behavior.
• Pipeline, engine, and models now propagate formulas_map end-to-end, with
  updated samples and documentation.
• Rendering robustness improved for print-area exports (safer page numbering
  and error handling during PrintArea restoration).

Notes

• formulas_map is emitted in verbose by default; use include_formulas_map
  to enable/disable explicitly.