Does AI Help? October 2026, version 2026.10.10

Adds KPMG Global AI Pulse Q3 2026 as a primary source with its three named authors, survey methodology, qualified value-versus-cost findings and a page-referenced appraisal. Retains the June Q2 announcement as a separate related wave. Includes updated web article, evidence database, citation exports and PDF. Evidence cutoff remains 13 October 2026; earlier archives are preserved. Third-party PDF is not redistributed.