Initial commit: Auto-Charger Logging Web-App

MQTT-Collector (Python/paho-mqtt) speichert abgeschlossene go-e
Wallbox-Ladungen in SQLite; Next.js-Web-App zeigt sie als Tabelle mit
Energie-Summen (Monat/Jahr/gesamt) im werte-next-Design. Zwei
Docker-Container mit gemeinsamem DB-Volume.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

web/Dockerfile

@@ -0,0 +1,43 @@
+# Multi-stage build für die Next.js-App (standalone output)
+FROM node:22-alpine AS base
+
+# Dependencies (better-sqlite3 ist ein natives Modul -> Build-Tools nötig)
+FROM base AS deps
+RUN apk add --no-cache libc6-compat python3 make g++
+WORKDIR /app
+COPY package.json package-lock.json* ./
+RUN npm install
+
+# Build
+FROM base AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+
+ARG BUILD_DATE
+ENV NEXT_PUBLIC_BUILD_DATE=${BUILD_DATE}
+ENV NEXT_TELEMETRY_DISABLED=1
+
+RUN npm run build
+
+# Runner
+FROM base AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
+
+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"]