feat: add make start command for local previewing (#1078)

* feat: add `make start` command for local previewing

* Update Makefile

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update Makefile

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update scripts/check.sh

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix: update help text for `make dev` and `make start` commands

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Makefile

@@ -1,6 +1,6 @@
 # DeerFlow - Unified Development Environment
 
-.PHONY: help config check install dev stop clean docker-init docker-start docker-stop docker-logs docker-logs-frontend docker-logs-gateway
+.PHONY: help config check install dev start stop clean docker-init docker-start docker-stop docker-logs docker-logs-frontend docker-logs-gateway
 
 help:
 	@echo "DeerFlow Development Commands:"
@@ -8,7 +8,8 @@ help:
 	@echo "  make check           - Check if all required tools are installed"
 	@echo "  make install         - Install all dependencies (frontend + backend)"
 	@echo "  make setup-sandbox   - Pre-pull sandbox container image (recommended)"
-	@echo "  make dev             - Start all services (frontend + backend + nginx on localhost:2026)"
+	@echo "  make dev             - Start all services in development mode (with hot-reloading)"
+	@echo "  make start           - Start all services in production mode (optimized, no hot-reloading)"
 	@echo "  make stop            - Stop all running services"
 	@echo "  make clean           - Clean up processes and temporary files"
 	@echo ""
@@ -31,78 +32,7 @@ config:
 
 # Check required tools
 check:
-	@echo "=========================================="
-	@echo "  Checking Required Dependencies"
-	@echo "=========================================="
-	@echo ""
-	@FAILED=0; \
-	echo "Checking Node.js..."; \
-	if command -v node >/dev/null 2>&1; then \
-		NODE_VERSION=$$(node -v | sed 's/v//'); \
-		NODE_MAJOR=$$(echo $$NODE_VERSION | cut -d. -f1); \
-		if [ $$NODE_MAJOR -ge 22 ]; then \
-			echo "  ✓ Node.js $$NODE_VERSION (>= 22 required)"; \
-		else \
-			echo "  ✗ Node.js $$NODE_VERSION found, but version 22+ is required"; \
-			echo "    Install from: https://nodejs.org/"; \
-			FAILED=1; \
-		fi; \
-	else \
-		echo "  ✗ Node.js not found (version 22+ required)"; \
-		echo "    Install from: https://nodejs.org/"; \
-		FAILED=1; \
-	fi; \
-	echo ""; \
-	echo "Checking pnpm..."; \
-	if command -v pnpm >/dev/null 2>&1; then \
-		PNPM_VERSION=$$(pnpm -v); \
-		echo "  ✓ pnpm $$PNPM_VERSION"; \
-	else \
-		echo "  ✗ pnpm not found"; \
-		echo "    Install: npm install -g pnpm"; \
-		echo "    Or visit: https://pnpm.io/installation"; \
-		FAILED=1; \
-	fi; \
-	echo ""; \
-	echo "Checking uv..."; \
-	if command -v uv >/dev/null 2>&1; then \
-		UV_VERSION=$$(uv --version | awk '{print $$2}'); \
-		echo "  ✓ uv $$UV_VERSION"; \
-	else \
-		echo "  ✗ uv not found"; \
-		echo "    Install: curl -LsSf https://astral.sh/uv/install.sh | sh"; \
-		echo "    Or visit: https://docs.astral.sh/uv/getting-started/installation/"; \
-		FAILED=1; \
-	fi; \
-	echo ""; \
-	echo "Checking nginx..."; \
-	if command -v nginx >/dev/null 2>&1; then \
-		NGINX_VERSION=$$(nginx -v 2>&1 | awk -F'/' '{print $$2}'); \
-		echo "  ✓ nginx $$NGINX_VERSION"; \
-	else \
-		echo "  ✗ nginx not found"; \
-		echo "    macOS:   brew install nginx"; \
-		echo "    Ubuntu:  sudo apt install nginx"; \
-		echo "    Or visit: https://nginx.org/en/download.html"; \
-		FAILED=1; \
-	fi; \
-	echo ""; \
-	if [ $$FAILED -eq 0 ]; then \
-		echo "=========================================="; \
-		echo "  ✓ All dependencies are installed!"; \
-		echo "=========================================="; \
-		echo ""; \
-		echo "You can now run:"; \
-		echo "  make install  - Install project dependencies"; \
-		echo "  make dev      - Start development server"; \
-	else \
-		echo "=========================================="; \
-		echo "  ✗ Some dependencies are missing"; \
-		echo "=========================================="; \
-		echo ""; \
-		echo "Please install the missing tools and run 'make check' again."; \
-		exit 1; \
-	fi
+	@./scripts/check.sh
 
 # Install all dependencies
 install:
@@ -149,9 +79,13 @@ setup-sandbox:
 		exit 1; \
 	fi
 
-# Start all services
+# Start all services in development mode (with hot-reloading)
 dev:
-	@./scripts/start.sh
+	@./scripts/serve.sh --dev
+
+# Start all services in production mode (with optimizations)
+start:
+	@./scripts/serve.sh --prod
 
 # Stop all services
 stop:
@@ -159,6 +93,9 @@ stop:
 	@-pkill -f "langgraph dev" 2>/dev/null || true
 	@-pkill -f "uvicorn src.gateway.app:app" 2>/dev/null || true
 	@-pkill -f "next dev" 2>/dev/null || true
+	@-pkill -f "next start" 2>/dev/null || true
+	@-pkill -f "next-server" 2>/dev/null || true
+	@-pkill -f "next-server" 2>/dev/null || true
 	@-nginx -c $(PWD)/docker/nginx/nginx.local.conf -p $(PWD) -s quit 2>/dev/null || true
 	@sleep 1
 	@-pkill -9 nginx 2>/dev/null || true
@@ -169,6 +106,8 @@ stop:
 # Clean up
 clean: stop
 	@echo "Cleaning up..."
+	@-rm -rf backend/.deer-flow 2>/dev/null || true
+	@-rm -rf backend/.langgraph_api 2>/dev/null || true
 	@-rm -rf logs/*.log 2>/dev/null || true
 	@echo "✓ Cleanup complete"