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

Dockerfile

@@ -0,0 +1,24 @@
+# Courtside — single-process Node app. No native modules (SQLite comes from node:sqlite),
+# so the image is a plain node:22-alpine with the app copied in.
+FROM node:22-alpine AS deps
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci --omit=dev
+
+FROM node:22-alpine
+ENV NODE_ENV=production \
+    PORT=3000 \
+    DB_PATH=/data/courtside.sqlite \
+    NODE_OPTIONS=--disable-warning=ExperimentalWarning
+WORKDIR /app
+RUN apk add --no-cache wget && mkdir -p /data && chown node:node /data
+COPY --from=deps /app/node_modules ./node_modules
+COPY package.json ./
+COPY engine ./engine
+COPY server ./server
+COPY scripts ./scripts
+USER node
+VOLUME ["/data"]
+EXPOSE 3000
+HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 CMD wget -qO- http://127.0.0.1:3000/healthz || exit 1
+CMD ["node", "server/index.js"]