Phase 3.6: Agent Visual Orchestration - DAG Workflow Editor (8 node types, drag-drop canvas, execution engine)

backend/python/main.py

@@ -34,7 +34,7 @@ sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 
 from app.api import auth, chat, channels, knowledge, market, token_usage, payment, profile, notifications, assets, evolution
 
-from app.api.admin import dashboard, users, models, settings, payment_admin, services, membership_admin, ads, market_admin, logs, skills_admin, agents_admin, knowledge_admin, storage_admin, automation_admin, mcp_admin, developer_admin, apps_admin
+from app.api.admin import dashboard, users, models, settings, payment_admin, services, membership_admin, ads, market_admin, logs, skills_admin, agents_admin, knowledge_admin, workflow_admin, storage_admin, automation_admin, mcp_admin, developer_admin, apps_admin
 from app.config import setup_file_logging, SLOW_REQUEST_THRESHOLD
 
 from app.database import SessionLocal
@@ -419,6 +419,7 @@ app.include_router(skills_admin.router, prefix="/app/api/admin/skills", tags=["
 
 app.include_router(agents_admin.router, prefix="/app/api/admin/agents", tags=["后台-Agent管理"])
 app.include_router(knowledge_admin.router, prefix="/app/api/admin/knowledge", tags=["后台-知识库管理"])
+app.include_router(workflow_admin.router, prefix="/app/api/admin/workflows", tags=["后台-工作流编排"])
 app.include_router(storage_admin.router, prefix="/app/api/admin/storage", tags=["后台-存储配置"])
 app.include_router(automation_admin.router, prefix="/app/api/admin/automation", tags=["后台-自动化任务"])
 app.include_router(mcp_admin.router, prefix="/app/api/admin/mcp", tags=["后台-MCP服务"])

frontend/src/App.tsx

@@ -42,6 +42,7 @@ const AdminAutomation = lazy(() => import('@/pages/admin/Automation'));
 const AdminDeveloper = lazy(() => import('@/pages/admin/Developer'));
 const AdminMcp = lazy(() => import('@/pages/admin/Mcp'));
 const AdminStorage = lazy(() => import('@/pages/admin/Storage'));
+const AdminWorkflow = lazy(() => import('@/pages/admin/Workflow'));
 
 // Loading fallback
 const PageLoading: React.FC = () => (
@@ -113,6 +114,7 @@ const App: React.FC = () => {
             {/* AI能力 */}
             <Route path="models" element={<AdminModels />} />
             <Route path="agents" element={<AdminAgents />} />
+            <Route path="workflow" element={<AdminWorkflow />} />
             <Route path="skills" element={<AdminSkills />} />
             <Route path="knowledge" element={<AdminKnowledge />} />
             <Route path="mcp" element={<AdminMcp />} />

frontend/src/api/index.ts

@@ -686,4 +686,25 @@ export const evolutionAPI = {
   },
   getReportDetail: (reportId: string) => get<import('@/types').EvolutionReport>(`/evolution/reports/${reportId}`),
 
+
+  // Workflow (Phase 3.6)
+  getWorkflows: (params?: Record<string, any>) =>
+    get<any>('/admin/workflows/?' + new URLSearchParams(params || {}).toString()),
+  getWorkflow: (id: string) =>
+    get<any>(`/admin/workflows/${id}`),
+  getWorkflowStats: () =>
+    get<any>('/admin/workflows/stats'),
+  getWorkflowTemplates: () =>
+    get<any>('/admin/workflows/templates'),
+  createWorkflow: (data: any) =>
+    post<any>('/admin/workflows/', data),
+  updateWorkflow: (id: string, data: any) =>
+    put<any>(`/admin/workflows/${id}`, data),
+  deleteWorkflow: (id: string) =>
+    del<any>(`/admin/workflows/${id}`),
+  toggleWorkflow: (id: string, isActive: boolean) =>
+    post<any>(`/admin/workflows/${id}/toggle?is_active=${isActive}`),
+  executeWorkflow: (id: string, inputText: string) =>
+    post<any>(`/admin/workflows/${id}/execute`, { input_text: inputText }),
+
 };

frontend/src/components/layout/AdminLayout.tsx

@@ -34,6 +34,7 @@ const navGroups: NavGroup[] = [
     items: [
       { path: '/admin/models', icon: 'models', label: '模型控制台' },
       { path: '/admin/agents', icon: 'agents', label: 'Agent管理' },
+      { path: '/admin/workflow', icon: 'workflow', label: '工作流编排' },
       { path: '/admin/skills', icon: 'skills', label: '技能管理' },
       { path: '/admin/knowledge', icon: 'knowledge', label: '知识库管理' },
       { path: '/admin/mcp', icon: 'mcp', label: 'MCP服务' },
@@ -73,6 +74,7 @@ const adminIconPaths: Record<string, JSX.Element> = {
   market: <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round"><rect x="3" y="3" width="7" height="7" rx="1.2"/><rect x="14" y="3" width="7" height="7" rx="1.2"/><rect x="3" y="14" width="7" height="7" rx="1.2"/><rect x="14" y="14" width="7" height="7" rx="1.2"/></svg>,
   logs: <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round"><path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/><polyline points="14 2 14 8 20 8"/><line x1="16" y1="13" x2="8" y2="13"/><line x1="16" y1="17" x2="8" y2="17"/></svg>,
   agents: <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round"><circle cx="12" cy="10" r="3"/><path d="M12 2a8 8 0 0 0-8 8c0 5.4 8 12 8 12s8-6.6 8-12a8 8 0 0 0-8-8z"/></svg>,
+  workflow: <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round"><rect x="3" y="3" width="6" height="6" rx="1"/><rect x="15" y="15" width="6" height="6" rx="1"/><path d="M9 6h6a3 3 0 0 1 3 3v6"/></svg>,
   skills: <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round"><path d="M14.7 6.3a1 1 0 0 0 0 1.4l1.6 1.6a1 1 0 0 0 1.4 0l3.77-3.77a6 6 0 0 1-7.94 7.94l-6.91 6.91a2.12 2.12 0 0 1-3-3l6.91-6.91a6 6 0 0 1 7.94-7.94l-3.76 3.76z"/></svg>,
   knowledge: <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="1.8" strokeLinecap="round" strokeLinejoin="round"><path d="M4 19.5A2.5 2.5 0 0 1 6.5 17H20"/><path d="M6.5 2H20v20H6.5A2.5 2.5 0 0 1 4 19.5v-15A2.5 2.5 0 0 1 6.5 2z"/><line x1="8" y1="7" x2="16" y2="7"/><line x1="8" y1="11" x2="14" y2="11"/></svg>,
   // New icons for orphan pages

frontend/src/pages/admin/Workflow.tsx

@@ -0,0 +1,667 @@
+import React, { useState, useEffect, useCallback, useRef } from "react";
+import { useNavigate } from "react-router-dom";
+
+interface WorkflowNode {
+  id: string;
+  type: string;
+  position: { x: number; y: number };
+  data: { label: string; config: Record<string, any> };
+}
+
+interface WorkflowEdge {
+  id: string;
+  source: string;
+  target: string;
+  sourceHandle?: string | null;
+  targetHandle?: string | null;
+}
+
+interface Workflow {
+  id: string;
+  name: string;
+  description: string;
+  agent_id: string | null;
+  nodes: WorkflowNode[];
+  edges: WorkflowEdge[];
+  variables: Record<string, any>;
+  status: string;
+  version: number;
+  created_at: string;
+  updated_at: string;
+}
+
+interface NodeTemplate {
+  type: string;
+  label: string;
+  icon: string;
+  color: string;
+  description: string;
+  config_schema: Record<string, any>;
+}
+
+const NODE_COLORS: Record<string, string> = {
+  start: "#3B6D11",
+  llm: "#534AB7",
+  knowledge: "#185FA5",
+  skill: "#0F6E56",
+  condition: "#BA7517",
+  http: "#D4537E",
+  code: "#5F5E5A",
+  end: "#A32D2D",
+};
+
+const NODE_LABELS: Record<string, string> = {
+  start: "开始",
+  llm: "LLM 调用",
+  knowledge: "知识库检索",
+  skill: "Skill 调用",
+  condition: "条件分支",
+  http: "HTTP 请求",
+  code: "代码执行",
+  end: "结束",
+};
+
+export default function Workflow() {
+  const navigate = useNavigate();
+  const [workflows, setWorkflows] = useState<Workflow[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [view, setView] = useState<"list" | "editor">("list");
+  const [currentWf, setCurrentWf] = useState<Workflow | null>(null);
+  const [templates, setTemplates] = useState<NodeTemplate[]>([]);
+  const [options, setOptions] = useState<Record<string, any[]>>({});
+  const [selectedNode, setSelectedNode] = useState<WorkflowNode | null>(null);
+  const [draggingNode, setDraggingNode] = useState<string | null>(null);
+  const [connectingFrom, setConnectingFrom] = useState<string | null>(null);
+  const [executeResult, setExecuteResult] = useState<any>(null);
+  const [executeInput, setExecuteInput] = useState("");
+  const [showExecute, setShowExecute] = useState(false);
+  const [stats, setStats] = useState({ total: 0, draft: 0, published: 0, archived: 0 });
+  const canvasRef = useRef<HTMLDivElement>(null);
+  const dragOffset = useRef({ x: 0, y: 0 });
+
+  const api = (window as any).api;
+
+  // Load workflows
+  const loadWorkflows = useCallback(async () => {
+    setLoading(true);
+    try {
+      const res = await api.get("/admin/workflows/");
+      if (res.code === 0) setWorkflows(res.data.items || []);
+    } catch (e) { console.error(e); }
+    try {
+      const s = await api.get("/admin/workflows/stats");
+      if (s.code === 0) setStats(s.data);
+    } catch (e) { console.error(e); }
+    setLoading(false);
+  }, []);
+
+  // Load templates
+  const loadTemplates = useCallback(async () => {
+    try {
+      const res = await api.get("/admin/workflows/templates");
+      if (res.code === 0) {
+        setTemplates(Object.values(res.data.node_templates || {}));
+        setOptions(res.data.options || {});
+      }
+    } catch (e) { console.error(e); }
+  }, []);
+
+  useEffect(() => { loadWorkflows(); loadTemplates(); }, []);
+
+  // Create new workflow
+  const handleCreate = async () => {
+    const name = prompt("工作流名称:", "新工作流");
+    if (!name) return;
+    try {
+      const res = await api.post("/admin/workflows/", {
+        name,
+        description: "",
+        nodes: [
+          { id: "start-1", type: "start", position: { x: 100, y: 200 }, data: { label: "开始", config: { input_variable: "input" } } },
+          { id: "end-1", type: "end", position: { x: 500, y: 200 }, data: { label: "结束", config: { output_variable: "output" } } },
+        ],
+        edges: [],
+      });
+      if (res.code === 0) {
+        loadWorkflows();
+        handleOpenEditor(res.data);
+      }
+    } catch (e) { console.error(e); }
+  };
+
+  // Open editor
+  const handleOpenEditor = (wf: Workflow) => {
+    setCurrentWf(wf);
+    setSelectedNode(null);
+    setView("editor");
+  };
+
+  // Save workflow
+  const handleSave = async () => {
+    if (!currentWf) return;
+    try {
+      const res = await api.put(`/admin/workflows/${currentWf.id}`, {
+        name: currentWf.name,
+        description: currentWf.description,
+        nodes: currentWf.nodes,
+        edges: currentWf.edges,
+        variables: currentWf.variables,
+      });
+      if (res.code === 0) {
+        setCurrentWf(res.data);
+        alert("保存成功");
+      }
+    } catch (e) { console.error(e); }
+  };
+
+  // Delete workflow
+  const handleDelete = async (id: string) => {
+    if (!confirm("确认删除此工作流?")) return;
+    try {
+      await api.del(`/admin/workflows/${id}`);
+      loadWorkflows();
+    } catch (e) { console.error(e); }
+  };
+
+  // Toggle publish
+  const handleToggle = async (wf: Workflow) => {
+    const isActive = wf.status !== "published";
+    try {
+      await api.put(`/admin/workflows/${wf.id}/toggle?is_active=${isActive}`);
+      loadWorkflows();
+    } catch (e) { console.error(e); }
+  };
+
+  // Add node to canvas
+  const handleAddNode = (template: NodeTemplate) => {
+    if (!currentWf) return;
+    const id = `${template.type}-${Date.now()}`;
+    const newNode: WorkflowNode = {
+      id,
+      type: template.type,
+      position: { x: 250 + Math.random() * 100, y: 150 + Math.random() * 100 },
+      data: {
+        label: template.label,
+        config: Object.fromEntries(
+          Object.entries(template.config_schema).map(([k, v]: [string, any]) => [k, v.default ?? ""])
+        ),
+      },
+    };
+    setCurrentWf({ ...currentWf, nodes: [...currentWf.nodes, newNode] });
+  };
+
+  // Node drag
+  const handleNodeMouseDown = (e: React.MouseEvent, nodeId: string) => {
+    e.stopPropagation();
+    const node = currentWf!.nodes.find(n => n.id === nodeId);
+    if (!node || !canvasRef.current) return;
+    const rect = canvasRef.current.getBoundingClientRect();
+    dragOffset.current = {
+      x: e.clientX - rect.left - node.position.x,
+      y: e.clientY - rect.top - node.position.y,
+    };
+    setDraggingNode(nodeId);
+    setSelectedNode(node);
+  };
+
+  const handleCanvasMouseMove = (e: React.MouseEvent) => {
+    if (!draggingNode || !currentWf || !canvasRef.current) return;
+    const rect = canvasRef.current.getBoundingClientRect();
+    const x = e.clientX - rect.left - dragOffset.current.x;
+    const y = e.clientY - rect.top - dragOffset.current.y;
+    setCurrentWf({
+      ...currentWf,
+      nodes: currentWf.nodes.map(n => n.id === draggingNode ? { ...n, position: { x, y } } : n),
+    });
+  };
+
+  const handleCanvasMouseUp = () => { setDraggingNode(null); };
+
+  // Canvas click (deselect / cancel connecting)
+  const handleCanvasClick = (e: React.MouseEvent) => {
+    if (e.target === e.currentTarget) {
+      setSelectedNode(null);
+      setConnectingFrom(null);
+    }
+  };
+
+  // Start connecting from a node
+  const handleStartConnect = (e: React.MouseEvent, nodeId: string) => {
+    e.stopPropagation();
+    setConnectingFrom(nodeId);
+  };
+
+  // Complete connection to a node
+  const handleEndConnect = (e: React.MouseEvent, nodeId: string) => {
+    e.stopPropagation();
+    if (!connectingFrom || !currentWf) return;
+    if (connectingFrom === nodeId) { setConnectingFrom(null); return; }
+    // Check if edge already exists
+    const exists = currentWf.edges.some(e => e.source === connectingFrom && e.target === nodeId);
+    if (exists) { setConnectingFrom(null); return; }
+    const newEdge: WorkflowEdge = {
+      id: `e-${Date.now()}`,
+      source: connectingFrom,
+      target: nodeId,
+    };
+    setCurrentWf({ ...currentWf, edges: [...currentWf.edges, newEdge] });
+    setConnectingFrom(null);
+  };
+
+  // Delete edge
+  const handleDeleteEdge = (edgeId: string) => {
+    if (!currentWf) return;
+    setCurrentWf({ ...currentWf, edges: currentWf.edges.filter(e => e.id !== edgeId) });
+  };
+
+  // Delete selected node
+  const handleDeleteNode = () => {
+    if (!selectedNode || !currentWf) return;
+    const nodeId = selectedNode.id;
+    setCurrentWf({
+      ...currentWf,
+      nodes: currentWf.nodes.filter(n => n.id !== nodeId),
+      edges: currentWf.edges.filter(e => e.source !== nodeId && e.target !== nodeId),
+    });
+    setSelectedNode(null);
+  };
+
+  // Update node config
+  const handleConfigChange = (key: string, value: any) => {
+    if (!selectedNode || !currentWf) return;
+    const updatedNodes = currentWf.nodes.map(n =>
+      n.id === selectedNode.id
+        ? { ...n, data: { ...n.data, label: n.data.label, config: { ...n.data.config, [key]: value } } }
+        : n
+    );
+    setCurrentWf({ ...currentWf, nodes: updatedNodes });
+    setSelectedNode(updatedNodes.find(n => n.id === selectedNode.id) || null);
+  };
+
+  // Execute workflow
+  const handleExecute = async () => {
+    if (!currentWf) return;
+    try {
+      const res = await api.post(`/admin/workflows/${currentWf.id}/execute`, {
+        input_text: executeInput,
+      });
+      if (res.code === 0) {
+        setExecuteResult(res.data);
+      } else {
+        alert("执行失败: " + (res.message || "未知错误"));
+      }
+    } catch (e) { console.error(e); alert("执行失败"); }
+  };
+
+  // SVG edge path (bezier curve)
+  const getEdgePath = (src: WorkflowNode, tgt: WorkflowNode) => {
+    const x1 = src.position.x + 90;
+    const y1 = src.position.y + 25;
+    const x2 = tgt.position.x;
+    const y2 = tgt.position.y + 25;
+    const dx = Math.abs(x2 - x1) * 0.5;
+    return `M ${x1} ${y1} C ${x1 + dx} ${y1}, ${x2 - dx} ${y2}, ${x2} ${y2}`;
+  };
+
+  // ============================================================
+  // LIST VIEW
+  // ============================================================
+  if (view === "list") {
+    return (
+      <div style={{ padding: "24px", color: "#e0e0e0", minHeight: "100vh" }}>
+        <div style={{ display: "flex", justifyContent: "space-between", alignItems: "center", marginBottom: "24px" }}>
+          <div>
+            <h2 style={{ margin: 0, fontSize: "20px", color: "#fff" }}>Agent 可视化编排</h2>
+            <p style={{ margin: "4px 0 0", color: "#888", fontSize: "13px" }}>拖拽式 DAG 工作流编排引擎 · 支持LLM/知识库/Skill/条件分支/HTTP/代码节点</p>
+          </div>
+          <button onClick={handleCreate} style={btnPrimary}>+ 新建工作流</button>
+        </div>
+
+        {/* Stats */}
+        <div style={{ display: "grid", gridTemplateColumns: "repeat(4, 1fr)", gap: "16px", marginBottom: "24px" }}>
+          {[
+            { label: "总工作流", value: stats.total, color: "#534AB7" },
+            { label: "草稿", value: stats.draft, color: "#BA7517" },
+            { label: "已发布", value: stats.published, color: "#3B6D11" },
+            { label: "已归档", value: stats.archived, color: "#5F5E5A" },
+          ].map(s => (
+            <div key={s.label} style={{ ...statCard, borderLeft: `3px solid ${s.color}` }}>
+              <div style={{ fontSize: "24px", fontWeight: 600, color: "#fff" }}>{s.value}</div>
+              <div style={{ fontSize: "12px", color: "#888" }}>{s.label}</div>
+            </div>
+          ))}
+        </div>
+
+        {/* Workflow list */}
+        <div style={{ background: "#1a1a2e", borderRadius: "12px", overflow: "hidden" }}>
+          <table style={{ width: "100%", borderCollapse: "collapse" }}>
+            <thead>
+              <tr style={{ borderBottom: "1px solid #333" }}>
+                {["名称", "状态", "节点数", "版本", "更新时间", "操作"].map(h => (
+                  <th key={h} style={{ padding: "12px 16px", textAlign: "left", fontSize: "13px", color: "#888", fontWeight: 500 }}>{h}</th>
+                ))}
+              </tr>
+            </thead>
+            <tbody>
+              {loading ? (
+                <tr><td colSpan={6} style={{ padding: "40px", textAlign: "center", color: "#666" }}>加载中...</td></tr>
+              ) : workflows.length === 0 ? (
+                <tr><td colSpan={6} style={{ padding: "40px", textAlign: "center", color: "#666" }}>暂无工作流，点击"新建工作流"开始</td></tr>
+              ) : workflows.map(wf => (
+                <tr key={wf.id} style={{ borderBottom: "1px solid #222" }}>
+                  <td style={{ padding: "12px 16px" }}>
+                    <div style={{ color: "#fff", fontWeight: 500 }}>{wf.name}</div>
+                    <div style={{ color: "#666", fontSize: "12px" }}>{wf.description || "—"}</div>
+                  </td>
+                  <td style={{ padding: "12px 16px" }}>
+                    <span style={statusBadge(wf.status)}>{wf.status === "published" ? "已发布" : wf.status === "archived" ? "已归档" : "草稿"}</span>
+                  </td>
+                  <td style={{ padding: "12px 16px", color: "#aaa" }}>{wf.nodes?.length || 0}</td>
+                  <td style={{ padding: "12px 16px", color: "#aaa" }}>v{wf.version}</td>
+                  <td style={{ padding: "12px 16px", color: "#888", fontSize: "12px" }}>{wf.updated_at?.slice(0, 19).replace("T", " ") || "—"}</td>
+                  <td style={{ padding: "12px 16px" }}>
+                    <button onClick={() => handleOpenEditor(wf)} style={btnSmall}>编辑</button>
+                    <button onClick={() => handleToggle(wf)} style={{ ...btnSmall, marginLeft: "4px" }}>{wf.status === "published" ? "归档" : "发布"}</button>
+                    <button onClick={() => handleDelete(wf.id)} style={{ ...btnSmall, marginLeft: "4px", color: "#F09595" }}>删除</button>
+                  </td>
+                </tr>
+              ))}
+            </tbody>
+          </table>
+        </div>
+      </div>
+    );
+  }
+
+  // ============================================================
+  // EDITOR VIEW
+  // ============================================================
+  if (!currentWf) return null;
+
+  return (
+    <div style={{ display: "flex", flexDirection: "column", height: "100vh", background: "#0d0d1a", color: "#e0e0e0" }}>
+      {/* Toolbar */}
+      <div style={{ display: "flex", alignItems: "center", padding: "8px 16px", background: "#16162a", borderBottom: "1px solid #2a2a4a", gap: "8px" }}>
+        <button onClick={() => { setView("list"); loadWorkflows(); }} style={btnSmall}>← 返回</button>
+        <input
+          value={currentWf.name}
+          onChange={e => setCurrentWf({ ...currentWf, name: e.target.value })}
+          style={{ background: "transparent", border: "1px solid #333", borderRadius: "6px", padding: "4px 12px", color: "#fff", fontSize: "14px", width: "200px" }}
+        />
+        <span style={{ color: "#666", fontSize: "12px" }}>v{currentWf.version} · {currentWf.nodes.length} 节点 · {currentWf.edges.length} 连线</span>
+        <div style={{ flex: 1 }} />
+        <button onClick={handleSave} style={btnPrimary}>保存</button>
+        <button onClick={() => setShowExecute(!showExecute)} style={{ ...btnSmall, borderColor: "#3B6D11" }}>执行</button>
+        {selectedNode && <button onClick={handleDeleteNode} style={{ ...btnSmall, color: "#F09595" }}>删除节点</button>}
+      </div>
+
+      {/* Execute panel */}
+      {showExecute && (
+        <div style={{ padding: "12px 16px", background: "#1a1a2e", borderBottom: "1px solid #2a2a4a" }}>
+          <div style={{ display: "flex", gap: "8px", alignItems: "flex-end" }}>
+            <div style={{ flex: 1 }}>
+              <label style={{ fontSize: "12px", color: "#888" }}>输入文本</label>
+              <textarea
+                value={executeInput}
+                onChange={e => setExecuteInput(e.target.value)}
+                placeholder="输入测试文本..."
+                style={{ width: "100%", background: "#0d0d1a", border: "1px solid #333", borderRadius: "6px", padding: "8px", color: "#fff", fontSize: "13px", minHeight: "40px", resize: "vertical" }}
+              />
+            </div>
+            <button onClick={handleExecute} style={btnPrimary}>执行工作流</button>
+          </div>
+          {executeResult && (
+            <div style={{ marginTop: "12px" }}>
+              <div style={{ fontSize: "12px", color: "#888", marginBottom: "4px" }}>执行日志:</div>
+              {executeResult.log?.map((l: any, i: number) => (
+                <div key={i} style={{ fontSize: "12px", padding: "4px 8px", background: l.success ? "rgba(59,109,17,0.15)" : "rgba(163,45,45,0.15)", borderRadius: "4px", marginBottom: "2px" }}>
+                  <span style={{ color: l.success ? "#97C459" : "#F09595" }}>[{l.node_type}]</span>{" "}
+                  <span style={{ color: "#aaa" }}>{l.node_label}</span>
+                  {l.output_preview && <span style={{ color: "#666" }}> → {l.output_preview.slice(0, 100)}</span>}
+                  {l.error && <span style={{ color: "#F09595" }}> → {l.error}</span>}
+                </div>
+              ))}
+              <div style={{ marginTop: "8px", padding: "8px", background: "#0d0d1a", borderRadius: "6px", border: "1px solid #333" }}>
+                <div style={{ fontSize: "12px", color: "#888", marginBottom: "4px" }}>最终输出:</div>
+                <pre style={{ margin: 0, color: "#97C459", fontSize: "13px", whiteSpace: "pre-wrap" }}>{executeResult.output}</pre>
+              </div>
+            </div>
+          )}
+        </div>
+      )}
+
+      {/* Main area: palette | canvas | config */}
+      <div style={{ display: "flex", flex: 1, overflow: "hidden" }}>
+        {/* Node palette */}
+        <div style={{ width: "180px", background: "#16162a", borderRight: "1px solid #2a2a4a", padding: "12px", overflowY: "auto" }}>
+          <div style={{ fontSize: "12px", color: "#666", marginBottom: "8px", textTransform: "uppercase" }}>节点类型</div>
+          {Object.entries(NODE_LABELS).map(([type, label]) => (
+            <div
+              key={type}
+              onClick={() => {
+                const tmpl = templates.find(t => t.type === type);
+                if (tmpl) handleAddNode(tmpl);
+                else handleAddNode({ type, label, icon: "", color: NODE_COLORS[type], description: "", config_schema: {} });
+              }}
+              style={{
+                padding: "8px 12px",
+                marginBottom: "4px",
+                borderRadius: "6px",
+                cursor: "pointer",
+                background: "#1a1a2e",
+                border: "1px solid #333",
+                borderLeft: `3px solid ${NODE_COLORS[type]}`,
+                transition: "background 0.2s",
+              }}
+              onMouseEnter={e => (e.currentTarget.style.background = "#222244")}
+              onMouseLeave={e => (e.currentTarget.style.background = "#1a1a2e")}
+            >
+              <span style={{ color: "#fff", fontSize: "13px" }}>{label}</span>
+            </div>
+          ))}
+        </div>
+
+        {/* Canvas */}
+        <div
+          ref={canvasRef}
+          onClick={handleCanvasClick}
+          onMouseMove={handleCanvasMouseMove}
+          onMouseUp={handleCanvasMouseUp}
+          style={{
+            flex: 1,
+            position: "relative",
+            overflow: "hidden",
+            backgroundImage: "radial-gradient(circle, #1a1a2e 1px, transparent 1px)",
+            backgroundSize: "20px 20px",
+            background: "#0d0d1a",
+          }}
+        >
+          {/* SVG for edges */}
+          <svg style={{ position: "absolute", top: 0, left: 0, width: "100%", height: "100%", pointerEvents: "none" }}>
+            {currentWf.edges.map(edge => {
+              const src = currentWf.nodes.find(n => n.id === edge.source);
+              const tgt = currentWf.nodes.find(n => n.id === edge.target);
+              if (!src || !tgt) return null;
+              return (
+                <g key={edge.id} style={{ pointerEvents: "auto" }}>
+                  <path d={getEdgePath(src, tgt)} fill="none" stroke="#534AB7" strokeWidth={2} markerEnd="url(#arrowhead)" />
+                  <circle cx={(src.position.x + tgt.position.x + 90) / 2} cy={(src.position.y + tgt.position.y + 25) / 2} r={8} fill="#1a1a2e" stroke="#534AB7" strokeWidth={1} style={{ cursor: "pointer" }} onClick={() => handleDeleteEdge(edge.id)} />
+                  <text x={(src.position.x + tgt.position.x + 90) / 2} y={(src.position.y + tgt.position.y + 25) / 2 + 3} textAnchor="middle" fill="#F09595" fontSize="10" style={{ pointerEvents: "none" }}>x</text>
+                </g>
+              );
+            })}
+            <defs>
+              <marker id="arrowhead" markerWidth="8" markerHeight="8" refX="7" refY="3" orient="auto">
+                <polygon points="0 0, 8 3, 0 6" fill="#534AB7" />
+              </marker>
+            </defs>
+          </svg>
+
+          {/* Nodes */}
+          {currentWf.nodes.map(node => {
+            const isSelected = selectedNode?.id === node.id;
+            const color = NODE_COLORS[node.type] || "#5F5E5A";
+            return (
+              <div
+                key={node.id}
+                onMouseDown={e => handleNodeMouseDown(e, node.id)}
+                onClick={e => { e.stopPropagation(); setSelectedNode(node); }}
+                style={{
+                  position: "absolute",
+                  left: node.position.x,
+                  top: node.position.y,
+                  width: "90px",
+                  minHeight: "50px",
+                  background: "#1a1a2e",
+                  border: `2px solid ${isSelected ? color : "#333"}`,
+                  borderRadius: "8px",
+                  cursor: draggingNode === node.id ? "grabbing" : "grab",
+                  padding: "8px",
+                  textAlign: "center",
+                  boxShadow: isSelected ? `0 0 12px ${color}40` : "none",
+                  zIndex: isSelected ? 10 : 1,
+                }}
+              >
+                <div style={{ fontSize: "11px", color, fontWeight: 600, marginBottom: "2px" }}>{NODE_LABELS[node.type] || node.type}</div>
+                <div style={{ fontSize: "11px", color: "#aaa" }}>{node.data.label}</div>
+                {/* Connection handles */}
+                <div
+                  onClick={e => connectingFrom ? handleEndConnect(e, node.id) : handleStartConnect(e, node.id)}
+                  style={{
+                    position: "absolute", right: -6, top: "50%", transform: "translateY(-50%)",
+                    width: 12, height: 12, borderRadius: "50%",
+                    background: connectingFrom === node.id ? "#97C459" : "#534AB7",
+                    cursor: "pointer", border: "2px solid #1a1a2e",
+                  }}
+                />
+                <div
+                  onClick={e => connectingFrom && handleEndConnect(e, node.id)}
+                  style={{
+                    position: "absolute", left: -6, top: "50%", transform: "translateY(-50%)",
+                    width: 12, height: 12, borderRadius: "50%",
+                    background: "#444", cursor: "pointer", border: "2px solid #1a1a2e",
+                  }}
+                />
+              </div>
+            );
+          })}
+
+          {connectingFrom && (
+            <div style={{ position: "absolute", top: 12, left: "50%", transform: "translateX(-50%)", background: "#534AB7", color: "#fff", padding: "4px 12px", borderRadius: "6px", fontSize: "12px" }}>
+              点击目标节点的右端口完成连线
+            </div>
+          )}
+        </div>
+
+        {/* Config panel */}
+        <div style={{ width: "280px", background: "#16162a", borderLeft: "1px solid #2a2a4a", padding: "16px", overflowY: "auto" }}>
+          {selectedNode ? (
+            <>
+              <div style={{ fontSize: "14px", fontWeight: 600, color: "#fff", marginBottom: "4px" }}>
+                {NODE_LABELS[selectedNode.type] || selectedNode.type}
+              </div>
+              <div style={{ fontSize: "12px", color: "#666", marginBottom: "16px" }}>节点 ID: {selectedNode.id}</div>
+
+              <div style={{ marginBottom: "12px" }}>
+                <label style={{ fontSize: "12px", color: "#888" }}>显示名称</label>
+                <input
+                  value={selectedNode.data.label}
+                  onChange={e => {
+                    const updated = currentWf.nodes.map(n => n.id === selectedNode.id ? { ...n, data: { ...n.data, label: e.target.value } } : n);
+                    setCurrentWf({ ...currentWf, nodes: updated });
+                    setSelectedNode({ ...selectedNode, data: { ...selectedNode.data, label: e.target.value } });
+                  }}
+                  style={configInput}
+                />
+              </div>
+
+              {/* Config fields */}
+              {Object.entries(templates.find(t => t.type === selectedNode.type)?.config_schema || {}).map(([key, schema]: [string, any]) => (
+                <div key={key} style={{ marginBottom: "12px" }}>
+                  <label style={{ fontSize: "12px", color: "#888" }}>{schema.label || key}</label>
+                  {schema.help && <div style={{ fontSize: "11px", color: "#666", marginBottom: "2px" }}>{schema.help}</div>}
+                  {schema.type === "textarea" ? (
+                    <textarea
+                      value={selectedNode.data.config[key] ?? ""}
+                      onChange={e => handleConfigChange(key, e.target.value)}
+                      style={{ ...configInput, minHeight: "60px", resize: "vertical" }}
+                    />
+                  ) : schema.type === "select" && schema.options_from ? (
+                    <select
+                      value={selectedNode.data.config[key] ?? ""}
+                      onChange={e => handleConfigChange(key, e.target.value)}
+                      style={configInput}
+                    >
+                      <option value="">-- 选择 --</option>
+                      {(options[schema.options_from] || []).map((opt: any) => (
+                        <option key={opt.value} value={opt.value}>{opt.label}</option>
+                      ))}
+                    </select>
+                  ) : schema.type === "select" && schema.options ? (
+                    <select
+                      value={selectedNode.data.config[key] ?? ""}
+                      onChange={e => handleConfigChange(key, e.target.value)}
+                      style={configInput}
+                    >
+                      <option value="">-- 选择 --</option>
+                      {schema.options.map((opt: string) => (
+                        <option key={opt} value={opt}>{opt}</option>
+                      ))}
+                    </select>
+                  ) : (
+                    <input
+                      type={schema.type === "number" ? "number" : "text"}
+                      value={selectedNode.data.config[key] ?? ""}
+                      onChange={e => handleConfigChange(key, schema.type === "number" ? parseFloat(e.target.value) || 0 : e.target.value)}
+                      style={configInput}
+                    />
+                  )}
+                </div>
+              ))}
+            </>
+          ) : (
+            <div style={{ color: "#666", fontSize: "13px", textAlign: "center", marginTop: "40px" }}>
+              选择一个节点查看配置
+            </div>
+          )}
+        </div>
+      </div>
+    </div>
+  );
+}
+
+// ============================================================
+// Styles
+// ============================================================
+const btnPrimary: React.CSSProperties = {
+  background: "#534AB7", color: "#fff", border: "none", borderRadius: "6px",
+  padding: "6px 16px", cursor: "pointer", fontSize: "13px", fontWeight: 500,
+};
+
+const btnSmall: React.CSSProperties = {
+  background: "transparent", color: "#aaa", border: "1px solid #333", borderRadius: "4px",
+  padding: "4px 10px", cursor: "pointer", fontSize: "12px",
+};
+
+const statCard: React.CSSProperties = {
+  background: "#1a1a2e", borderRadius: "8px", padding: "16px",
+};
+
+const configInput: React.CSSProperties = {
+  width: "100%", background: "#0d0d1a", border: "1px solid #333",
+  borderRadius: "4px", padding: "6px 8px", color: "#fff", fontSize: "13px",
+  outline: "none",
+};
+
+function statusBadge(status: string): React.CSSProperties {
+  const colors: Record<string, string> = {
+    published: "#3B6D11",
+    draft: "#BA7517",
+    archived: "#5F5E5A",
+  };
+  const bg = colors[status] || "#5F5E5A";
+  return {
+    background: `${bg}20`, color: bg, padding: "2px 8px",
+    borderRadius: "4px", fontSize: "12px",
+  };
+}