feat: Feature 1.2 (NBA stats FastAPI service) + Feature 1.4 (database schema)

Feature 1.2: Python FastAPI microservice wrapping nba_api
- GET /stats/season-avg, /stats/last-n, /stats/splits, /players/search
- Redis caching (24hr/1hr/6hr/7day), 0.6s rate limiting, PRA derived stat
- 27 Python tests passing

Feature 1.4: Complete Supabase database schema
- 6 tables: users, picks, scan_sessions, bets, outcomes, performance
- RLS enabled on all tables with auth.uid() policies
- 3 triggers: auto-create user, updated_at, scan count reset
- 37 schema validation tests passing
- Migration SQL ready, pending manual apply (WSL2 DNS blocker)

Total: 92 tests (65 Node.js + 27 Python), all passing

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/verify-schema.js

@@ -0,0 +1,54 @@
+require('dotenv').config();
+const { createClient } = require('@supabase/supabase-js');
+
+const supabase = createClient(
+  process.env.SUPABASE_URL,
+  process.env.SUPABASE_SERVICE_KEY
+);
+
+const EXPECTED_TABLES = ['users', 'picks', 'scan_sessions', 'bets', 'outcomes', 'performance'];
+
+async function verifySchema() {
+  console.log('[BetonBLK] Verifying database schema...\n');
+
+  let allPassed = true;
+
+  // Check each table exists by querying it
+  for (const table of EXPECTED_TABLES) {
+    const { data, error } = await supabase.from(table).select('*').limit(0);
+    if (error) {
+      console.error(`  FAIL: ${table} — ${error.message}`);
+      allPassed = false;
+    } else {
+      console.log(`  OK: ${table}`);
+    }
+  }
+
+  console.log('');
+
+  // Test RLS: service role should be able to query all tables
+  console.log('Testing service role access...');
+  for (const table of EXPECTED_TABLES) {
+    const { error } = await supabase.from(table).select('*').limit(1);
+    if (error) {
+      console.error(`  FAIL: service role cannot access ${table} — ${error.message}`);
+      allPassed = false;
+    } else {
+      console.log(`  OK: service role can access ${table}`);
+    }
+  }
+
+  console.log('');
+
+  if (allPassed) {
+    console.log('ALL CHECKS PASSED. Schema is correctly applied.');
+  } else {
+    console.error('SOME CHECKS FAILED. Review errors above.');
+    process.exit(1);
+  }
+}
+
+verifySchema().catch((err) => {
+  console.error('Verification failed:', err.message);
+  process.exit(1);
+});