May someone who hurt another person send an intermediary to ask forgiveness, or must he ask in person?

A source-based Torah discussion of the question: May someone who hurt another person send an intermediary to ask forgiveness, or must he ask in person? This localized discovery layer presents the canonical issue for search and study without adding a new practical ruling. The author-fidelity publication clearance is preserved, while the full Hebrew source remains the controlling text for its reasoning, qualifications and conclusion.