Wave 6: Combat Intelligence Layer (honest free v1)

Net-new MMA/UFC vertical — fight-card discovery, tale-of-the-tape,
style-blend archetypes, ML + round-total odds, and a style-edge VERDICT
(a MODEL read, explicitly NOT a settled grade). Built to
specs/combat-intelligence.md.

Backend:
- combatAdapter: ESPN MMA scoreboard (date-pinned, free JSON) -> fight
  cards + tale-of-tape (record/weight class/rounds/ESPN athlete id);
  defensive parse (null on unknown shape, never throws); injectable
  fetchImpl + cache; pure normalizeCombatOdds (odds-api h2h/totals ->
  ML + round total, allow-listed books, best price). Number(null) guard.
- archetypeService: 6 pinned combat styles in a SEPARATE COMBAT_ARCHETYPES
  registry (FINISHER collides with soccer + its green trips the signal-
  green gate); classify('mma') blends range/tempo/outcome, honest-empty on
  thin data (no forced fallback); styleMatchup() honest verdict.
- oddsService: SPORT_KEYS.mma + MMA_MARKETS=['h2h','totals'] + SPORT_MARKETS
  (no spreads suffix). oddsNormalizer MARKET_MAP h2h/totals.
- config/sports.js + web mirror: mma.active=true (collectData stays false;
  NOT in the graded-props pipeline SPORT_CONFIG or snapshot/settle loop).
- routes/combat.js: GET /api/combat/:date + GET /api/fight/:id (public,
  cached, honest empty off-card) + Next proxies.

Frontend:
- FightCard: two-fighter tale-of-the-tape (initials monogram — no photos),
  GRAPPLER/STRIKER blend bars, discipline pedigree tags, shared
  ArchetypeBadge (sport="mma", unicode glyphs), CENTER VERDICT, ML +
  round-total real; method/round/KO = honest "data-limited", never
  fabricated. Self-hides on a non-two-fighter bout.
- /fight/[id] page (server wrapper + client), EmptyState off-season.
- MMA SportBadge token (#D4AF37); archetypes.js sport-aware resolution.

DEFERRED (per spec, NOT built): matchup-GRADE engine, method/round/props
board, combat settlement, ufcstats scraping.

Tests: +3 suites (31 tests) — combat archetype cross-file color/glyph
match, classify blends, styleMatchup honesty, adapter defensive parse +
odds normalize, FightCard honesty grep; extended oddsNormalizer +
sportMarkets. Full suite 253/253 green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/unit/sportMarkets.test.js

@@ -64,14 +64,23 @@ describe('SPORT_MARKETS — isolation', () => {
     expect(wc).not.toMatch(/batter_/);
   });
 
-  test('every market list ends with `spreads`', () => {
-    for (const list of Object.values(SPORT_MARKETS)) {
+  test('every PLAYER-PROP market list ends with `spreads`', () => {
+    for (const [sport, list] of Object.entries(SPORT_MARKETS)) {
+      // Wave 6 — MMA is a GAME-level sport (h2h + round totals only); it has
+      // no player-prop `spreads` market and odds-api 422s if one is sent.
+      if (sport === 'mma') continue;
       // We don't require spreads to be the literal final segment,
       // only that it's present in the comma-separated list.
       expect(list.split(',')).toContain('spreads');
     }
   });
 
+  test('MMA market list is game-level (h2h + totals), no spreads/player props', () => {
+    expect(SPORT_MARKETS.mma).toBe('h2h,totals');
+    expect(SPORT_MARKETS.mma).not.toMatch(/spreads/);
+    expect(SPORT_MARKETS.mma).not.toMatch(/player_/);
+  });
+
   test('SPORT_MARKETS is frozen at the top level', () => {
     expect(Object.isFrozen(SPORT_MARKETS)).toBe(true);
   });