feat: Dockerfile, deploy configs en Caddy-block voor ops.jp-visser.nl

- Multi-stage Dockerfile (deps → builder → runner) met next standalone output
- .dockerignore zodat node_modules en .next niet mee worden gebundeld
- next.config.ts: output standalone ingeschakeld voor minimale image
- deploy/docker-compose.ops-dashboard.yml: service-fragment voor /srv/scrum4me/compose
- deploy/caddy/Caddyfile.ops-dashboard: reverse_proxy block voor Caddy
- deploy/ops-dashboard.env.example: env-template voor /srv/ops/ops-dashboard.env

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Dockerfile

@@ -0,0 +1,29 @@
+FROM node:22-alpine AS deps
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+
+FROM node:22-alpine AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN npx prisma generate
+RUN npm run build
+
+FROM node:22-alpine AS runner
+WORKDIR /app
+ENV NODE_ENV=production
+
+RUN addgroup --system --gid 1001 nodejs \
+ && adduser --system --uid 1001 nextjs
+
+COPY --from=builder /app/public ./public
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
+
+USER nextjs
+EXPOSE 3000
+ENV PORT=3000
+ENV HOSTNAME="0.0.0.0"
+
+CMD ["node", "server.js"]