archive-experience

Use this skill when archiving docs/experience/wins or docs/experience/errors entries — when the entry count approaches the hygiene cap (wins 790, errors 296), during the weekly hygiene sweep, or when an entry is fully superseded. It enforces future-value classification (not age or quota), oldest-first zero-inbound-reference discovery, the frozen-archive seal via scripts/archive_experience.py, and the rule that…