feat: add Dockerfile for self-hosted deployment

.dockerignore

@@ -0,0 +1,9 @@
+.git
+node_modules
+.next
+.env.local
+.env*.local
+*.log
+.DS_Store
+tsconfig.tsbuildinfo
+next-env.d.ts

Dockerfile

@@ -0,0 +1,23 @@
+FROM node:22-alpine AS base
+RUN corepack enable
+
+FROM base AS deps
+WORKDIR /app
+COPY package.json pnpm-lock.yaml ./
+RUN pnpm install --frozen-lockfile
+
+FROM base AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN node_modules/.bin/next build
+
+FROM base AS runner
+WORKDIR /app
+ENV NODE_ENV=production
+ENV PORT=3001
+COPY --from=builder /app/.next/standalone ./
+COPY --from=builder /app/.next/static ./.next/static
+COPY --from=builder /app/public ./public
+EXPOSE 3001
+CMD ["node", "server.js"]

next.config.ts

@@ -1,6 +1,7 @@
 import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
+  output: "standalone",
   headers: async () => [
     {
       source: "/(.*)",