feat(flows): 新增流程编辑器基础功能与相关组件

feat(backend): 添加流程模型与服务支持
feat(frontend): 实现流程编辑器UI与交互
feat(assets): 添加流程节点图标资源
feat(plugins): 实现上下文菜单和运行时插件
feat(components): 新增基础节点和侧边栏组件
feat(routes): 添加流程相关路由配置
feat(models): 创建流程和运行日志数据模型
feat(services): 实现流程服务层逻辑
feat(migration): 添加流程相关数据库迁移
feat(config): 更新前端配置支持流程编辑器
feat(utils): 增强axios错误处理和工具函数

frontend/src/flows/assets/icon-minimap.tsx

@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) 2025 Bytedance Ltd. and/or its affiliates
+ * SPDX-License-Identifier: MIT
+ */
+
+export const IconMinimap = () => (
+  <svg width="24" height="24" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
+    <g id="g1">
+      <path
+        id="path1"
+        fill="#000000"
+        stroke="none"
+        d="M 18.09091 6.883101 L 5.409091 6.883101 L 5.409091 16.746737 L 10.664648 16.746737 C 10.927091 17.116341 11.30353 17.422749 11.792977 17.611004 L 12.664289 17.946156 L 12.744959 18.155828 L 5.409091 18.155828 C 4.630871 18.155828 4 17.524979 4 16.746737 L 4 6.883101 C 4 6.104881 4.630871 5.47401 5.409091 5.47401 L 18.09091 5.47401 C 18.86915 5.47401 19.5 6.104881 19.5 6.883101 L 19.5 12.52348 C 19.247208 11.883823 18.730145 11.365912 18.09091 11.111994 L 18.09091 6.883101 Z M 18.09091 18.155828 L 17.881165 18.155828 L 19.469212 14.368896 C 19.479921 14.343321 19.490206 14.317817 19.5 14.292241 L 19.5 16.746737 C 19.5 17.524979 18.86915 18.155828 18.09091 18.155828 Z"
+      />
+      <path
+        id="path2"
+        fill="#000000"
+        fillRule="evenodd"
+        stroke="none"
+        d="M 18.494614 13.960189 C 18.982441 12.796985 17.813459 11.628003 16.650255 12.11576 L 12.133272 14.01 C 10.962248 14.501069 10.987188 16.168798 12.172375 16.62464 L 13.482055 17.128389 L 13.985805 18.438068 C 14.441646 19.623184 16.109375 19.648125 16.600443 18.477171 L 18.494614 13.960189 Z M 17.19515 13.415224 L 15.30098 17.932205 L 14.79723 16.622526 C 14.654066 16.250385 14.359989 15.956307 13.987918 15.813213 L 12.678168 15.309464 L 17.19515 13.415224 Z"
+      />
+    </g>
+  </svg>
+);