Web app ready

Dockerfile

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+# ── Stage 1: deps ─────────────────────────────────────────────────────────────
+FROM node:24-alpine3.21 AS deps
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+
+# ── Stage 2: builder ──────────────────────────────────────────────────────────
+FROM node:24-alpine3.21 AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN npm run build
+
+# ── Stage 3: runner ───────────────────────────────────────────────────────────
+FROM node:24-alpine3.21 AS runner
+WORKDIR /app
+
+ENV NODE_ENV=production
+# DATA_DIR is the single volume mount point for both SQLite and uploads
+ENV DATA_DIR=/data
+
+# Create a non-root user
+RUN addgroup --system --gid 1001 nodejs && \
+    adduser --system --uid 1001 nextjs && \
+    mkdir -p /data/uploads && chown -R nextjs:nodejs /data
+
+# Copy standalone build output
+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
+
+USER nextjs
+
+EXPOSE 3000
+ENV PORT=3000
+ENV HOSTNAME=0.0.0.0
+
+CMD ["node", "server.js"]