DocFence 0.16.0 — DOCVARIABLE field-reference inventory

DocFence 0.16.0 adds a privacy-safe inventory for stored Word DOCVARIABLE field references.\n\n- Detects complete simple and complex field instructions across supported stories, including current and deleted revision variants.\n- Reports aggregate reference/story, literal/nonliteral, and exact same-scope storage-association counts only; instructions, names, values, and paths remain private.\n- Handles Word's default * MERGEFORMAT suffix without evaluating a field.\n- Adds DFP045 (no DOCVARIABLE fields) and DFP046 (approved DOCVARIABLE field baseline).\n\nValidation: 41 tests, Ruff, clean wheel smoke against LibreOffice's public DOCVARIABLE fixture, reproducible wheel/sdist builds, and successful Python 3.11/3.13/build CI.\n\nRelease assets include SHA256SUMS for the wheel and source archive.