fix: add libc6-compat to runner stage and optimize image sizes to fix 400 errors

Dockerfile

@@ -59,10 +59,10 @@ RUN pnpm build
 FROM node:20-alpine AS runner
 WORKDIR /app
 
-# Install curl for health checks
-RUN apk add --no-cache curl
+# Install dependencies for sharp and health checks
+RUN apk add --no-cache libc6-compat curl
 
-# Create nextjs user and group (standardized in runtime image but ensuring local ownership)
+# Create nextjs user and group
 RUN addgroup --system --gid 1001 nodejs && \
     adduser --system --uid 1001 nextjs && \
     chown -R nextjs:nodejs /app
@@ -73,10 +73,10 @@ ENV HOSTNAME="0.0.0.0"
 ENV PORT=3000
 ENV NODE_ENV=production
 
-# Copy standalone output and static files
-COPY --from=builder --chown=nextjs:nodejs /app/public ./public
+# Copy standalone output
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+# Copy public and static files into the expected locations
+COPY --from=builder --chown=nextjs:nodejs /app/public ./public
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
-COPY --from=builder --chown=nextjs:nodejs /app/.next/cache ./.next/cache
 
 CMD ["node", "server.js"]