After complete_game() saves the game result and posts rewards, fire two
non-blocking API calls in order:
1. POST season-stats/update-game/{game_id}
2. POST evolution/evaluate-game/{game_id}
Any failure in the evolution block is caught and logged as a warning —
the game is already persisted so evolution will self-heal on the next
evaluate pass. A notify_tier_completion stub is added as a WP-14 target.
Closes#78 on cal/paper-dynasty-database
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
