Session 51: Complete Team Hub (2234 tests)

Research-depth team view: /team/[abbr] with roster, archetypes, stats, props.

- Team API: mlbStatsAdapter.getTeams/resolveTeam/getTeamRoster (statsapi, abbr→id
  + active roster, cached). teamService.getTeamHub assembles roster → per-player
  season stats (bounded concurrency) + archetype (snapshot grade or classify) +
  tonight's graded props from grades:{sport}; whole hub cached 15min. MLB real;
  NBA/WNBA graceful snapshot roster. GET /api/team/:abbr (404 unknown) + proxy.
- Team Hub page: server page.tsx (generateMetadata) + TeamHub client — header,
  sort (archetype/graded/A-Z), archetype filter chips, roster rows (archetype +
  player link + position + stats + graded props + parlay "+"), "No active props"
  greyed state, loading/error.
- Game cards: team abbreviations are now TeamLinks → /team/:abbr?sport= (green
  hover, stops propagation). Team Hub has "← Back to Slate".

Backend 2215 -> 2234 tests (+19), 190 suites. Web build clean (exit 0).

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

CLAUDE.md

@@ -556,6 +556,27 @@ snapshot, locked to the line, and read from cache.
   then-missing `/grade` endpoint). Floating badge bottom-right when closed; free
   tier blurs the payout with a `window.__goPaywall` upsell.
 
+## Team Hub (Session 51 — non-obvious)
+- **`teamService.getTeamHub(sport, abbr)`** is the single payload builder for
+  `/team/:abbr`. MLB is the real path: `mlbStatsAdapter.resolveTeam` (abbr→id via
+  the cached `/teams` list) → `getTeamRoster` → per-player `getSeasonAverages(id)`
+  (bounded concurrency 8, reuses `playerIntelService._internals` mappers) →
+  archetype (the snapshot grade's locked archetype, else `classify`) → graded
+  props from `grades:{sport}`. The whole hub is cached 15 min (`teamhub:{sport}:
+  {abbr}`); each player's season stats cache 6h. NBA/WNBA have no free roster
+  feed → it returns a partial roster built from tonight's graded players + a note.
+  All deps injectable for tests.
+- **To add a sport's roster**, add a real roster source in `getTeamHub` (the MLB
+  branch is the template); abbr→id mapping is fetched live from statsapi (no
+  hardcoded team table to maintain).
+- **`GET /api/team/:abbr`** (public, cached) 404s an unknown MLB team. Browser
+  must use the Next proxy `app/api/team/[abbr]`.
+- **Page split:** `team/[abbr]/page.tsx` is a server wrapper (for
+  `generateMetadata`) rendering the `TeamHub` client component (sort/filter/parlay
+  are interactive). Player names → `playerHref`; team abbrs on game cards →
+  `vyndr/GameCard`'s `TeamLink` (stops propagation from the open-game handler).
+  The roster "+" reuses the Parlay Lab (`useParlay`/`legKey`).
+
 ## Active Skills
 - vyndr-voice (all user-facing output)
 - prop-analysis (grading methodology)