f45563ee31
Extract four helper functions from cmdStepRead to reduce cognitive complexity from 27 to ≤15: - loadStepDetail: Load and validate step detail node - loadTurnData: Load all turn nodes and extract content - selectTurnsForQuota: Select turns within quota (≥1 always shown) - formatStepMarkdown: Assemble final markdown output All 6 existing tests pass. Zero Biome warnings. CLAUDE.md compliant. Fixes #487