docs: remove AI-assisted setup wizard mentions

Dockerfile

@@ -30,6 +30,9 @@ WORKDIR /app
 ENV NODE_ENV=production
 ENV NEXT_TELEMETRY_DISABLED=1
 
+# Install tools needed for port detection (netcat)
+RUN apk add --no-cache netcat-openbsd
+
 # Create non-root user
 RUN addgroup --system --gid 1001 nodejs
 RUN adduser --system --uid 1001 nextjs
@@ -39,19 +42,26 @@ COPY --from=builder /app/public ./public
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
 
+# Copy and set up entrypoint script
+COPY --chown=nextjs:nodejs scripts/docker-entrypoint.sh /usr/local/bin/
+RUN chmod +x /usr/local/bin/docker-entrypoint.sh
+
+# Create shared directory for port file (must be writable by nextjs)
+RUN mkdir -p /var/run/synapsis && chown nextjs:nodejs /var/run/synapsis
+
 # Switch to non-root user
 USER nextjs
 
-# Expose port
-EXPOSE 3000
+# Expose port range for auto-detection
+EXPOSE 3000-3020
 
 # Set environment variables (can be overridden at runtime)
 ENV PORT=3000
 ENV HOSTNAME="0.0.0.0"
 
-# Health check
+# Health check (will use the actual PORT at runtime)
 HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
-  CMD curl -f http://localhost:3000/api/node || exit 1
+  CMD wget -q --spider http://localhost:${PORT:-3000}/api/health || exit 1
 
-# Start the application
-CMD ["node", "server.js"]
+# Use entrypoint script for port detection
+ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]