Documenta as colunas/tabelas reais usadas pelas 7 tools de KPI (MTTR via
solve_delay_stat, FCR via solução recusada, SLA TTR/TTO, workload, backlog,
CSAT, volume). Atualiza snapshot KB-026 para 26 tools.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>