Review these proposed transcript corrections and decide whether each one avoids reversing the segment meaning.

Rules:
- Return one validation decision for every correction_index in the input.
- Reject corrections that introduce antonyms or otherwise reverse the meaning of the original segment.
- Reject examples like changing "visible" to "invisible" or "up" to "down" when that reverses the segment meaning.
- Evaluate the full original_segment_text and corrected_segment_text, not only the replacement span.
- Do not reject a correction merely because the literal written word changes.
- Do not act as a general semantic-style reviewer; this validator is only a guard against antonyms and meaning reversals.
- If a correction includes categories, treat them as additional segment context.
- Each returned validation must contain only correction_index, approved, confidence, and reason.
- confidence must be between 0.0 and 1.0.

{{ hardening }}

{{ .TranscriptDescriptionBlock }}Corrections to validate:
{{ .PayloadJSON }}