- GET /chemistry-styles — lists 18 FUT-style chemistry styles with stat boost breakdowns
- POST /collection/:id/chemistry-style — apply a style (Shadow, Hunter, Anchor, etc.)
- POST /collection/:id/position — override a player's position for 500 coins
- POST /collection/:id/training — add +1/+2/+3 OVR training bonus (max +3 total)
- GET /collection now includes chemistry_style, position_override, training_bonus,
effective_overall and effective_position fields per owned card
- Migration 0007 adds three columns to owned_cards with safe defaults
- 10 new integration tests — all 55 pass, clippy clean
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Chemistry v2: FUT-style link scoring with per-player breakdown
(club +3/link cap 6, league +1/link cap 4, nation +1/link cap 3;
player cap 10, team cap 100); chemistry response now includes
per-player breakdown with club/league/nation link counts and pts
- Card pool: 34 new cards across Premier League, La Liga, Bundesliga
with overlapping clubs/nations for meaningful chemistry testing
- Card search: extended GET /cards with nation, league, club,
min_overall, max_overall, limit query params; results sorted by
overall descending
- Match opponent: added "ultimate" difficulty band (85+ OVR);
random formation selection from 6 tactical formations; falls back
to lower OVR pool when not enough cards at the requested band
- Tests: 9 new integration tests (28 total, all passing)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>