v6.1.0

Added

• NDJSON support: NDJSONSource and NDJSONDestination (with docs + tests).
• WordPress pagination: setPerPage() on WordPress sources.
• WordPress terms: optional categories/tags via WordPressPostSource::withTerms().

Fixed

• CSVDestination now writes a stable header and fills missing fields with blanks, preventing rows with missing columns.
• CSVSource now streams sequential pages from a single file handle to improve performance on large CSVs.

Docs / CI

• Documented Migrator::setSkipIfTrueCheck() in README.
• Updated GitHub Actions PHPUnit workflow for better compatibility across PHP versions.
• Removed StyleCI badge and removed legacy StyleCI/Travis webhooks.