v0.5.0

What's New

Search precision filters

• --columns / -c — filter search to specific columns (by letter or header name)
• --limit / -l — cap result count (default 25, max 1000)
• --range — restrict search to a cell range

Write improvements

• Auto-create: writing to a non-existent .xlsx/.xlsm file creates it automatically
• --formula now works with --json and --from-csv (previously single-cell only)
• Size guard: --output on large files (>20MB) fails fast with FILE_TOO_LARGE

Read improvements

• --headers — resolve column letters to row-1 header names in range reads

Output enhancements

• file_size_human field added to probe, read, and search output

Developer experience

• Pre-commit hooks: ruff check --fix + ruff format on commit, full test suite on push
• CI: added ruff format --check to publish workflow