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/start.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+# Start both BetonBLK services
+# Usage: ./scripts/start.sh
+
+set -e
+
+echo "[BetonBLK] Starting services..."
+
+# Start Python NBA stats service (port 8000)
+echo "[BetonBLK] Starting NBA stats service on port 8000..."
+cd nba-service
+source venv/bin/activate
+uvicorn app.main:app --host 0.0.0.0 --port 8000 &
+NBA_PID=$!
+cd ..
+
+# Start Node.js API server (port 3000)
+echo "[BetonBLK] Starting Node API server on port 3000..."
+node src/server.js &
+NODE_PID=$!
+
+echo "[BetonBLK] Services running:"
+echo "  Node API:   http://localhost:3000  (PID: $NODE_PID)"
+echo "  NBA Stats:  http://localhost:8000  (PID: $NBA_PID)"
+echo ""
+echo "Press Ctrl+C to stop all services."
+
+trap "kill $NBA_PID $NODE_PID 2>/dev/null; echo '[BetonBLK] Services stopped.'" EXIT
+
+wait