feat: scaffolding with standalone docker base

.dockerignore

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+node_modules
+.next
+.git
+.worktrees
+.superpowers
+Dockerfile
+docker-compose.yml
+.dockerignore
+.env
+.env*.local
+npm-debug.log

.env.example

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+DATABASE_URL=file:/data/gutscheine.db
+APP_USER=haushalt
+APP_PASSWORD_HASH=$2b$10$REPLACE_ME
+SESSION_SECRET=REPLACE_WITH_32_CHARS_MIN
+SMTP_HOST=
+SMTP_PORT=587
+SMTP_USER=
+SMTP_PASS=
+MAIL_FROM=gutscheine@example.de
+TELEGRAM_BOT_TOKEN=
+CRON_SECRET=REPLACE_ME
+TZ=Europe/Berlin

Dockerfile

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+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 && npm run build
+FROM node:22-alpine AS runner
+WORKDIR /app
+ENV NODE_ENV=production PORT=3000 HOSTNAME=0.0.0.0
+RUN addgroup -S app && adduser -S app -G app
+COPY --from=builder --chown=app:app /app/.next/standalone ./
+COPY --from=builder --chown=app:app /app/.next/static ./.next/static
+COPY --from=builder --chown=app:app /app/prisma ./prisma
+USER app
+EXPOSE 3000
+CMD ["node", "server.js"]

docker-compose.yml

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+services:
+  app:
+    build: .
+    ports: ["3000:3000"]
+    volumes: ["gutschein-data:/data"]
+    env_file: [.env]
+    restart: unless-stopped
+volumes:
+  gutschein-data: {}

next.config.ts

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+import type { NextConfig } from "next";
+const nextConfig: NextConfig = { output: "standalone" };
+export default nextConfig;

package.json

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+{
+  "name": "gutscheintracker",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "test": "vitest run"
+  },
+  "dependencies": {
+    "next": "15.3.0",
+    "react": "19.0.0",
+    "react-dom": "19.0.0",
+    "prisma": "6.5.0",
+    "@prisma/client": "6.5.0",
+    "nodemailer": "6.9.14",
+    "bcryptjs": "2.4.3",
+    "jose": "5.9.6"
+  },
+  "devDependencies": {
+    "typescript": "5.6.3",
+    "vitest": "3.0.0",
+    "@types/node": "22.7.0",
+    "@types/nodemailer": "6.4.16",
+    "@types/bcryptjs": "2.4.6"
+  }
+}

tests/smoke.test.ts

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+import { describe, it, expect } from "vitest";
+describe("scaffolding", () => {
+  it("has standalone output configured", async () => {
+    const cfg = await import("../next.config");
+    expect(cfg.default.output).toBe("standalone");
+  });
+});

tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "lib": ["dom", "dom.iterable", "es2022"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "preserve",
+    "incremental": true,
+    "plugins": [{ "name": "next" }],
+    "paths": { "@/*": ["./*"] }
+  },
+  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
+  "exclude": ["node_modules"]
+}

vitest.config.ts

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+import { defineConfig } from "vitest/config";
+
+export default defineConfig({
+  test: {
+    environment: "node",
+  },
+});