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>

src/routes/team.js

@@ -0,0 +1,32 @@
+'use strict';
+
+/**
+ * GET /api/team/:abbr?sport=mlb (Session 51) — the Team Hub payload (roster +
+ * per-player archetype/stats/props). Public, cache-backed (15 min). Returns 404
+ * for an unknown MLB team; NBA/WNBA degrade to a snapshot-built roster.
+ */
+
+const express = require('express');
+const { createRateLimit } = require('../middleware/rateLimit');
+const { getTeamHub } = require('../services/teamService');
+
+const router = express.Router();
+router.use(createRateLimit({ windowMs: 60_000, max: 60 }));
+
+router.get('/:abbr', async (req, res) => {
+  const sport = String(req.query.sport || 'mlb').toLowerCase();
+  const abbr = String(req.params.abbr || '');
+  try {
+    const hub = await getTeamHub(sport, abbr);
+    if (!hub) {
+      return res.status(404).json({ error: `No ${sport.toUpperCase()} team for "${abbr}". Check the abbreviation.` });
+    }
+    res.set('Cache-Control', 'public, max-age=300');
+    return res.json(hub);
+  } catch (err) {
+    console.error('[team]', err.message);
+    return res.status(503).json({ error: 'Team service temporarily unavailable' });
+  }
+});
+
+module.exports = router;