0.19.2

Added

• Portable command control helpers expose fieldsOf, projectFields, createOutputBuffer
  and createDeadline from the root export. Field projection retains list and operation metadata;
  a bounded UTF-8 buffer delays data until hosts finish cleanup. Deadlines use injected sleep and
  cancellation, waiting for the body to settle before callers close resources. Callers must propagate
  the signal, dispose the deadline and discard buffered output on failure; no provider/store lifecycle
  or automatic retries are imported.

Fixed

• Windows maintenance commands support portable relative PATH entries and custom or sanitized command-processor environments while preserving separate arguments.

Security

• Release checks include source and secret analysis; critical production advisories and critical source findings block publication. Workflow findings are reported for review. PR security remains the fast secret scan.