revert: remove admin-web/Dockerfile (did not exist at 29caf1a)

admin-web/Dockerfile

@@ -1,42 +0,0 @@
-# ── Build stage ──
-FROM node:20-alpine AS builder
-
-WORKDIR /app
-
-# Install dependencies (leveraging Docker layer cache)
-COPY package.json package-lock.json ./
-RUN npm ci
-
-# Copy source and build
-COPY . .
-ENV NEXT_TELEMETRY_DISABLED=1
-RUN npm run build
-
-# ── Runtime stage ──
-FROM node:20-alpine AS runner
-
-WORKDIR /app
-
-ENV NODE_ENV=production
-ENV NEXT_TELEMETRY_DISABLED=1
-
-# Create non-root user
-RUN addgroup --system --gid 1001 nodejs && \
-    adduser --system --uid 1001 nextjs
-
-# Copy standalone output from builder
-COPY --from=builder /app/.next/standalone ./
-COPY --from=builder /app/.next/static ./.next/static
-COPY --from=builder /app/public ./public
-
-# Set correct ownership
-RUN chown -R nextjs:nodejs /app
-
-USER nextjs
-
-EXPOSE 3000
-
-ENV PORT=3000
-ENV HOSTNAME="0.0.0.0"
-
-CMD ["node", "server.js"]