port mintlify to fumadocs

Dockerfile

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+# syntax=docker/dockerfile:1
+FROM node:24-alpine AS deps
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+
+FROM node:24-alpine AS build
+WORKDIR /app
+ENV NEXT_TELEMETRY_DISABLED=1
+ARG NEXT_PUBLIC_SITE_URL=https://docs.pangolin.net
+ENV NEXT_PUBLIC_SITE_URL=$NEXT_PUBLIC_SITE_URL
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN npm run build
+
+FROM node:24-alpine AS runner
+WORKDIR /app
+ENV NODE_ENV=production \
+    NEXT_TELEMETRY_DISABLED=1 \
+    PORT=3000 \
+    HOSTNAME=0.0.0.0
+RUN addgroup -S app && adduser -S app -G app
+COPY --from=build --chown=app:app /app/.next/standalone ./
+COPY --from=build --chown=app:app /app/.next/static ./.next/static
+COPY --from=build --chown=app:app /app/public ./public
+USER app
+EXPOSE 3000
+CMD ["node", "server.js"]