Courtside MVP: engine, web app, Docker + Cloudflare Tunnel deploy, docs

Tournament engine (pools, single/double elimination, standings with proper
tiebreaks, withdrawals, two-court queue with ETAs and alerts), a single-process
Node server with SQLite via node:sqlite and a WebSocket live board, organizer
desk, QR landing page that follows the tournament phase, Dockerfile and
compose with cloudflared, and documentation for deploying and running a day.

Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01MB7nCCAscYsb3zzkT6LHZi

docker-compose.local.yml

@@ -0,0 +1,18 @@
+# Local run without Cloudflare: http://localhost:3000
+#   docker compose -f docker-compose.local.yml up --build
+services:
+  app:
+    build: .
+    image: courtside:latest
+    restart: unless-stopped
+    ports:
+      - "3000:3000"
+    environment:
+      - PORT=3000
+      - DB_PATH=/data/courtside.sqlite
+      - ADMIN_PASSWORD=${ADMIN_PASSWORD:-changeme}
+      - SESSION_SECRET=${SESSION_SECRET:-}
+    volumes:
+      - courtside-data:/data
+volumes:
+  courtside-data: