chore(ports): Streamlit 端口参数化（默认8502）并修正启动提示

scripts/start-docker.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+# Video Flow - Docker 环境启动脚本
+
+set -e
+
+echo "🐳 启动 Video Flow Docker 环境..."
+
+cd "$(dirname "$0")/.."
+
+# 构建镜像
+echo "📦 构建 Docker 镜像..."
+docker-compose build
+
+# 启动服务
+echo "🚀 启动服务..."
+docker-compose up -d
+
+echo ""
+echo "✅ 所有服务已启动！"
+echo ""
+echo "📌 访问地址："
+echo "   - 视频编辑器: http://localhost:3000"
+echo "   - API 文档:   http://localhost:8000/api/docs"
+echo "   - 工作流控制台: http://localhost:8503"
+echo ""
+echo "📊 查看日志: docker-compose logs -f"
+echo "🔧 扩展 Worker: docker-compose scale worker=3"
+echo "🛑 停止服务: docker-compose down"
+