Agent Skills: create-specs

Transforms 11 reverse-engineering documents from Gear 2 into GitHub Spec Kit specifications with three thoroughness levels (specs-only, specs+plans, specs+plans+tasks). Creates .specify/ directory with constitution, feature specs, implementation plans, and task breakdowns. Gear 3 of 6 in reverse engineering pipeline. Triggered by: 'create specs from reverse engineering docs', 'generate spec kit from documentation', 'run gear 3', 'transform docs into spec kit'.