Does AI Help? October 2026, version 2026.10.7

Replaces four undated Gravity, Zig and Asahi entries with repository-backed document dates. Includes pinned source revisions, date basis, original commit timestamps and distinctions between source-declared publication, Git revision and policy adoption. Refreshes citation exports and PDF reference typography without changing findings or source counts. Evidence cutoff remains 13 October 2026; earlier snapshots preserved.