Self-contained guide for daily maintenance of tournament data during the World
Cup (Jun 11 – Jul 19). Covers: scoring updates to results.json, one-time bracket
assignment fill, rare schedule changes, and verification checklist. Distinguishes
mutable (results) vs. frozen (teams, groups, stadiums) files.
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
