feat: update environment configuration for production and add Docker support

Dockerfile

@@ -0,0 +1,62 @@
+# ── Stage 1: install all dependencies ─────────────────────────────────────────
+FROM node:22.14-alpine AS deps
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+
+# ── Stage 2: build ─────────────────────────────────────────────────────────────
+FROM node:22.14-alpine AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+
+ENV NEXT_TELEMETRY_DISABLED=1
+
+# Generate Prisma client (reads prisma/schema.prisma + prisma.config.ts)
+RUN npx prisma generate
+
+# Build Next.js — produces .next/standalone (set in next.config.mjs)
+RUN npm run build
+
+# ── Stage 3: production runner ─────────────────────────────────────────────────
+FROM node:22.14-alpine AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
+ENV PORT=3000
+ENV HOSTNAME=0.0.0.0
+
+# dumb-init: proper PID 1 / signal forwarding
+RUN apk add --no-cache dumb-init \
+ && addgroup --system --gid 1001 nodejs \
+ && adduser  --system --uid 1001 nextjs
+
+# ── Next.js standalone server ──────────────────────────────────────────────────
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static     ./.next/static
+COPY --from=builder --chown=nextjs:nodejs /app/public           ./public
+
+# ── Prisma runtime ─────────────────────────────────────────────────────────────
+# Config + schema (read by CLI at container startup for db push)
+COPY --from=builder --chown=nextjs:nodejs /app/prisma.config.ts    ./
+COPY --from=builder --chown=nextjs:nodejs /app/prisma/schema.prisma ./prisma/
+
+# Generated Prisma client (imported by the compiled Next.js server bundle)
+COPY --from=builder --chown=nextjs:nodejs /app/src/generated ./src/generated
+
+# Prisma CLI + its dependencies (devDeps — not bundled into standalone node_modules)
+COPY --from=builder --chown=nextjs:nodejs /app/node_modules/.bin/prisma  ./node_modules/.bin/prisma
+COPY --from=builder --chown=nextjs:nodejs /app/node_modules/prisma       ./node_modules/prisma
+COPY --from=builder --chown=nextjs:nodejs /app/node_modules/@prisma      ./node_modules/@prisma
+COPY --from=builder --chown=nextjs:nodejs /app/node_modules/@libsql      ./node_modules/@libsql
+
+# ── Entrypoint ─────────────────────────────────────────────────────────────────
+COPY --chown=nextjs:nodejs docker-entrypoint.sh ./
+RUN chmod +x /app/docker-entrypoint.sh
+
+USER nextjs
+EXPOSE 3000
+
+# dumb-init wraps our entrypoint so SIGTERM is forwarded to node properly
+ENTRYPOINT ["/usr/bin/dumb-init", "--", "/app/docker-entrypoint.sh"]