feat: 全新智能体功能

- 基于先进智能体框架，增加智能体编排功能
- 增加智能体聊天，并对接持久化

easyflow-ui-admin/app/src/views/ai/agents/components/agent-studio/AgentStudioEdgeLayer.vue

@@ -0,0 +1,49 @@
+<script setup lang="ts">
+import type {AgentStudioConnectionView} from './types';
+
+defineProps<{
+  connections: AgentStudioConnectionView[];
+}>();
+</script>
+
+<template>
+  <svg class="agent-studio-edge-layer" aria-hidden="true">
+    <path
+      v-for="connection in connections"
+      :key="connection.id"
+      class="agent-studio-edge-layer__path"
+      :class="{ 'is-active': connection.active }"
+      :d="connection.path"
+      :data-source-id="connection.sourceId"
+      :data-target-id="connection.targetId"
+    />
+  </svg>
+</template>
+
+<style scoped>
+.agent-studio-edge-layer {
+  position: absolute;
+  inset: 0;
+  z-index: 1;
+  overflow: visible;
+  pointer-events: none;
+}
+
+.agent-studio-edge-layer__path {
+  fill: none;
+  stroke: color-mix(
+    in srgb,
+    var(--el-color-primary) 30%,
+    var(--el-border-color)
+  );
+  stroke-width: 1.6;
+  stroke-linecap: round;
+  stroke-linejoin: round;
+  vector-effect: non-scaling-stroke;
+}
+
+.agent-studio-edge-layer__path.is-active {
+  stroke: var(--el-color-primary);
+  stroke-width: 2.2;
+}
+</style>