chore: overhaul infrastructure and integrate @mintel packages

- Restructure to pnpm monorepo (site moved to apps/web)
- Integrate @mintel/tsconfig, @mintel/eslint-config, @mintel/husky-config
- Implement Docker service architecture (Varnish, Directus, Gatekeeper)
- Setup environment-aware Gitea Actions deployment

Dockerfile

@@ -0,0 +1,69 @@
+FROM node:20-alpine AS base
+RUN corepack enable pnpm
+
+# Install dependencies only when needed
+FROM base AS deps
+RUN apk add --no-cache libc6-compat curl
+WORKDIR /app
+
+COPY pnpm-lock.yaml pnpm-workspace.yaml package.json .npmrc ./
+COPY apps/web/package.json ./apps/web/package.json
+
+# If there are local packages, copy them here
+# COPY packages/ ./packages/
+
+RUN --mount=type=cache,target=/root/.local/share/pnpm/store/v3 \
+    --mount=type=secret,id=NPM_TOKEN \
+    export NPM_TOKEN=$(cat /run/secrets/NPM_TOKEN) && \
+    pnpm install --frozen-lockfile
+
+# Rebuild the source code only when needed
+FROM base AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY --from=deps /app/apps/web/node_modules ./apps/web/node_modules
+COPY . .
+
+# Build-time environment variables
+ARG NEXT_PUBLIC_BASE_URL
+ARG NEXT_PUBLIC_TARGET
+ARG DIRECTUS_URL
+
+ENV NEXT_PUBLIC_BASE_URL=$NEXT_PUBLIC_BASE_URL
+ENV NEXT_PUBLIC_TARGET=$NEXT_PUBLIC_TARGET
+ENV DIRECTUS_URL=$DIRECTUS_URL
+ENV NEXT_TELEMETRY_DISABLED=1
+
+RUN pnpm --filter @mintel/web build
+
+# Production image, copy all the files and run next
+FROM base AS runner
+WORKDIR /app
+
+RUN apk add --no-cache curl
+
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
+
+RUN addgroup --system --gid 1001 nodejs
+RUN adduser --system --uid 1001 nextjs
+
+COPY --from=builder /app/apps/web/public ./apps/web/public
+
+# Set the correct permission for prerender cache
+RUN mkdir -p apps/web/.next
+RUN chown nextjs:nodejs apps/web/.next
+
+# Automatically leverage output traces to reduce image size
+COPY --from=builder --chown=nextjs:nodejs /app/apps/web/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/apps/web/.next/static ./apps/web/.next/static
+
+USER nextjs
+
+EXPOSE 3000
+
+ENV PORT=3000
+ENV HOSTNAME="0.0.0.0"
+
+WORKDIR /app/apps/web
+CMD ["node", "server.js"]