feat: 引擎多出口路由/退回/移交/或签补齐 + 定义 layout 坐标

- 多出口：FlwTask 增 edge_name 列（sql/20260916），FlwTaskRepository.claimAndFinish
  同步落列；FlowTaskService.handle 出度>1 时 edgeName 必填；FlowEngine.continueAdvance
  按 edge name 选路（单出口原路径逐字节兼容，未命中不推进）；FlowAdvanceService/
  FlowNodeAdvanceListener 透传；BranchScope 从 FlowEngine 提取
- DefValidator：多出口出口命名必填且同节点唯一；跨分支连线发布期明确拒绝
- 退回 POST /task/{id}/returnBack：默认退主管线最近已批节点，精确失效当前节点待办，
  split 幂等 upsert 使退回重走并行段不撞 flw_branch uk
- 移交 POST /task/{id}/transfer：TRANSFERRED(5)+新建待办，AssigneeResolver.requireUserName
- 或签 ANY 补齐：首个同意失效同节点兄弟待办
- 已办口径/撤回守卫：status in (1,2,4,5)；新事件 flow.returned/flow.transferred
- FlowDiagramService：EdgeVo.name/NodeVo.state/DiagramVo.layout，办件图状态计算
- 新 IT：多出口×3、ANY 或签、退回重走并行段、退回/移交/撤回

mvn test 84/84 绿

src/main/java/com/yunhai/flowcenter/controller/api/FlowBaseController.java

@@ -1,6 +1,6 @@
 package com.yunhai.flowcenter.controller.api;
 
-import com.yunhai.platform.openapi.client.YschBaseOpenApi;
+import com.yunhai.platform.openapi.base.YschBaseOpenApi;
 import com.yunhai.platform.utils.model.BoaModule;
 import com.yunhai.platform.utils.model.BoaUser;
 import org.springframework.web.bind.annotation.GetMapping;

src/main/java/com/yunhai/flowcenter/controller/api/FlowUserController.java

@@ -81,12 +81,13 @@ public class FlowUserController {
         return queryService.detail(schId, instance.getId(), user.getId());
     }
 
-    /** 同意（opinion 可选）——一切审批入口的收敛点 */
+    /** 同意（opinion 可选；多出口节点必须带 edgeName=所选出口名，单出口可省）——一切审批入口的收敛点 */
     @PostMapping("/task/{id}/approve")
     public void approve(BoaUser user, @PathVariable("id") Long id,
                         @RequestBody(required = false) Map<String, String> body) {
         String opinion = body == null ? null : body.get("opinion");
-        taskService.handle(requireSchId(user), id, true, opinion, user.getId());
+        String edgeName = body == null ? null : body.get("edgeName");
+        taskService.handle(requireSchId(user), id, true, opinion, user.getId(), edgeName);
     }
 
     /** 拒绝（opinion 必填） */
@@ -97,6 +98,26 @@ public class FlowUserController {
         taskService.handle(requireSchId(user), id, false, opinion, user.getId());
     }
 
+    /** 退回（targetNodeId 可选=缺省回最近已办节点；opinion 可选） */
+    @PostMapping("/task/{id}/returnBack")
+    public void returnBack(BoaUser user, @PathVariable("id") Long id,
+                           @RequestBody(required = false) Map<String, String> body) {
+        String targetNodeId = body == null ? null : body.get("targetNodeId");
+        String opinion = body == null ? null : body.get("opinion");
+        taskService.returnBack(requireSchId(user), id, targetNodeId, opinion, user.getId());
+    }
+
+    /** 移交（toUserId 必填；reason 可选） */
+    @PostMapping("/task/{id}/transfer")
+    public void transfer(BoaUser user, @PathVariable("id") Long id,
+                         @RequestBody Map<String, Object> body) {
+        Integer toUserId = body.get("toUserId") == null ? null
+                : Integer.valueOf(String.valueOf(body.get("toUserId")));
+        Object reason = body.get("reason");
+        taskService.transfer(requireSchId(user), id, toUserId,
+                reason == null ? null : String.valueOf(reason), user.getId());
+    }
+
     /** 撤回（提交人；仅尚无任务被办理时） */
     @PostMapping("/instance/{id}/withdraw")
     public void withdraw(BoaUser user, @PathVariable("id") Long id) {

src/main/java/com/yunhai/flowcenter/engine/AssigneeResolver.java

@@ -3,7 +3,7 @@ package com.yunhai.flowcenter.engine;
 import com.yunhai.flowcenter.entity.FlwAssigneeMap;
 import com.yunhai.flowcenter.repository.FlwAssigneeMapRepository;
 import com.yunhai.platform.apistd.BizException;
-import com.yunhai.platform.openapi.client.OpenApiUserClient;
+import com.yunhai.platform.openapi.base.OpenApiUserClient;
 import com.yunhai.platform.utils.exception.ErrorCode;
 import com.yunhai.platform.utils.model.BoaUser;
 import lombok.RequiredArgsConstructor;
@@ -61,4 +61,26 @@ public class AssigneeResolver {
             return "";
         }
     }
+
+    /**
+     * 移交目标校验（严格口径，与 {@link #fetchName} 的降级容错相反）：
+     * 查不到就必须拒绝——否则会建出一条谁在待办里都看不到的僵尸任务。
+     * UserBase 不可达与"人不存在"分别报错，便于排查。
+     */
+    public String requireUserName(Integer userId) {
+        if (userId == null) {
+            throw new BizException(ErrorCode.PARAM_ERROR, "缺少移交对象");
+        }
+        BoaUser user;
+        try {
+            user = userClient.getUserById(String.valueOf(userId));
+        } catch (Exception e) {
+            log.warn("[flow-center] 移交对象校验失败（UserBase 不可达）userId={}：{}", userId, e.getMessage());
+            throw new BizException(ErrorCode.PARAM_ERROR, "移交对象校验失败，请稍后重试：" + userId);
+        }
+        if (user == null) {
+            throw new BizException(ErrorCode.PARAM_ERROR, "移交对象不存在：" + userId);
+        }
+        return user.getName() == null ? "" : user.getName();
+    }
 }

src/main/java/com/yunhai/flowcenter/engine/BranchScope.java

@@ -0,0 +1,57 @@
+package com.yunhai.flowcenter.engine;
+
+import java.util.ArrayDeque;
+import java.util.Deque;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * 分支归属判定：节点属于哪个并行分支（branchKey=PARALLEL_SPLIT 出边目标节点 id），
+ * 主线节点与汇聚点之后属 null。运行时用于推导分支上下文（{@link FlowEngine}），
+ * 发布期用于拒绝跨分支连线（{@link DefValidator}）——两处必须同口径，故提取为静态工具。
+ */
+public final class BranchScope {
+
+    private BranchScope() {
+    }
+
+    /**
+     * 沿入边反向 BFS 走到最近的上游 PARALLEL_SPLIT，返回该 split 指向本链的 outEdge.to（即分支键）；
+     * 遇 START/PARALLEL_JOIN 边界即停（join 之后属汇聚链，分支键已消耗，返回 null）。
+     */
+    public static String keyOf(FlowDefModel model, String nodeId) {
+        if (model == null || nodeId == null) {
+            return null;
+        }
+        Set<String> visited = new HashSet<>();
+        Deque<String> queue = new ArrayDeque<>();
+        queue.add(nodeId);
+        visited.add(nodeId);
+        while (!queue.isEmpty()) {
+            String cur = queue.poll();
+            for (FlowDefModel.Edge e : model.inEdges(cur)) {
+                FlowDefModel.Node from = model.node(e.from);
+                if (from == null) {
+                    continue;
+                }
+                if (FlowDefModel.TYPE_PARALLEL_SPLIT.equals(from.type)) {
+                    return e.to;
+                }
+                if (FlowDefModel.TYPE_START.equals(from.type)
+                        || FlowDefModel.TYPE_PARALLEL_JOIN.equals(from.type)
+                        || !visited.add(e.from)) {
+                    continue;
+                }
+                queue.add(e.from);
+            }
+        }
+        return null;
+    }
+
+    /** 两节点是否同属一个分支上下文（含"都属主线"=都属于 null） */
+    public static boolean sameScope(FlowDefModel model, String a, String b) {
+        String ka = keyOf(model, a);
+        String kb = keyOf(model, b);
+        return ka == null ? kb == null : ka.equals(kb);
+    }
+}

src/main/java/com/yunhai/flowcenter/engine/DefValidator.java

@@ -87,12 +87,19 @@ public final class DefValidator {
         for (FlowDefModel.Node n : model.nodes) {
             int out = model.outEdges(n.id).size();
             int in = model.inEdges(n.id).size();
-            if (FlowDefModel.TYPE_START.equals(n.type) || FlowDefModel.TYPE_APPROVAL.equals(n.type)
+            if (FlowDefModel.TYPE_START.equals(n.type)
                     || FlowDefModel.TYPE_PARALLEL_JOIN.equals(n.type)) {
                 if (out != 1) {
                     problems.add(nodeLabel(n) + " 出边必须恰为 1 条（当前 " + out + "）");
                 }
             }
+            if (FlowDefModel.TYPE_APPROVAL.equals(n.type)) {
+                if (out < 1) {
+                    problems.add(nodeLabel(n) + " 出边至少 1 条");
+                } else if (out > 1) {
+                    validateOutlets(model, n, problems);
+                }
+            }
             if (FlowDefModel.TYPE_PARALLEL_SPLIT.equals(n.type) && out < 1) {
                 problems.add(nodeLabel(n) + " 出边至少 1 条");
             }
@@ -134,6 +141,29 @@ public final class DefValidator {
         }
     }
 
+    /**
+     * 多出口节点校验（办理人按出口名选路）：每个出口必须命名且同节点内唯一（名即办理按钮文案）；
+     * 出口目标必须与本节点同属一个分支上下文——跨分支连线依赖运行时的跨分支移动，一期未实现，
+     * 在发布期明确拒绝而非运行时静默走错边。
+     */
+    private static void validateOutlets(FlowDefModel model, FlowDefModel.Node n, List<String> problems) {
+        Set<String> names = new HashSet<>();
+        for (FlowDefModel.Edge e : model.outEdges(n.id)) {
+            if (e.name == null || e.name.trim().isEmpty()) {
+                problems.add(nodeLabel(n) + " 有 " + model.outEdges(n.id).size()
+                        + " 条出边，每个出口必须命名（名称即办理按钮文案）");
+                continue;
+            }
+            if (!names.add(e.name.trim())) {
+                problems.add(nodeLabel(n) + " 出口名称重复：" + e.name + "（同一节点的出口名必须唯一）");
+            }
+            if (!BranchScope.sameScope(model, n.id, e.to)) {
+                problems.add(nodeLabel(n) + " 的出口「" + e.name + "」指向另一并行分支内的节点（"
+                        + e.to + "）：暂不支持跨分支连线，可改用并行分支编排");
+            }
+        }
+    }
+
     private static void validateApproval(FlowDefModel.Node n, Set<String> enabledDeptKeys, List<String> problems) {
         FlowDefModel.Assignee a = n.assignee;
         if (a == null || a.type == null) {

src/main/java/com/yunhai/flowcenter/engine/FlowAdvanceService.java

@@ -2,6 +2,7 @@ package com.yunhai.flowcenter.engine;
 
 import com.yunhai.flowcenter.entity.FlwDef;
 import com.yunhai.flowcenter.entity.FlwInstance;
+import com.yunhai.flowcenter.entity.FlwTask;
 import com.yunhai.flowcenter.enums.FlwEnums;
 import com.yunhai.flowcenter.repository.FlwDefRepository;
 import com.yunhai.flowcenter.repository.FlwInstanceRepository;
@@ -27,9 +28,15 @@ public class FlowAdvanceService {
     private final FlwTaskRepository taskRepository;
     private final FlowEngine flowEngine;
 
-    /** @return 是否实际推进了 */
+    /**
+     * @param nodeId   待放行节点
+     * @param edgeName 多出口节点所选出口（办理事件携带）；可空——兜底从该节点
+     *                 最近一条已同意任务的 edge_name 列重放（推进在 AFTER_COMMIT 新事务重查，
+     *                 事件传参只是快路径，落库的值才是权威）
+     * @return 是否实际推进了
+     */
     @Transactional(propagation = Propagation.REQUIRES_NEW)
-    public boolean tryAdvance(Long instanceId, String nodeId) {
+    public boolean tryAdvance(Long instanceId, String nodeId, String edgeName) {
         FlwInstance instance = instanceRepository.findById(instanceId).orElse(null);
         if (instance == null
                 || instance.getStatus() != FlwEnums.InstanceStatus.APPROVING.getCode()) {
@@ -55,7 +62,17 @@ public class FlowAdvanceService {
                     instanceId, instance.getDefId());
             return false;
         }
-        flowEngine.continueAdvance(instance, def, nodeId);
+        String chosen = edgeName;
+        if (chosen == null) {
+            chosen = taskRepository.findByInstanceIdAndStatus(instanceId,
+                            FlwEnums.TaskStatus.APPROVED.getCode()).stream()
+                    .filter(t -> nodeId.equals(t.getNodeId()) && t.getEdgeName() != null)
+                    .max(java.util.Comparator.comparing(
+                            FlwTask::getHandleTime, java.util.Comparator.nullsFirst(java.util.Comparator.naturalOrder())))
+                    .map(FlwTask::getEdgeName)
+                    .orElse(null);
+        }
+        flowEngine.continueAdvance(instance, def, nodeId, chosen);
         instanceRepository.save(instance);
         return true;
     }

src/main/java/com/yunhai/flowcenter/engine/FlowDefModel.java

@@ -6,6 +6,7 @@ import com.yunhai.platform.apistd.BizException;
 import com.yunhai.platform.utils.exception.ErrorCode;
 
 import java.util.List;
+import java.util.Map;
 
 /**
  * 流程定义 JSON 模型（概览 §5.1 规范，一期 5 节点）。
@@ -38,6 +39,11 @@ public class FlowDefModel {
     public List<Node> nodes;
     public List<Edge> edges;
     public Settings settings;
+    /**
+     * 画布坐标（nodeId → 左上角），仅前端设计器/查看器复用；引擎不消费。
+     * 缺失时前端自行做自动布局，故可选、可空。
+     */
+    public Map<String, Layout> layout;
 
     @JsonIgnoreProperties(ignoreUnknown = true)
     public static class Node {
@@ -65,7 +71,20 @@ public class FlowDefModel {
     public static class Edge {
         public String from;
         public String to;
+        /**
+         * 出边名（按钮文案）。单出口可空；多出口节点必填且同节点内唯一，
+         * 办理人在办理页选它决定走哪条边（见 {@link #edgeByName}）。
+         */
         public String name;
+        /** 出口条件（二期条件自动路由预留；一期只校验透传，引擎不消费） */
+        public String condition;
+    }
+
+    /** 画布坐标（前端设计器专用） */
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static class Layout {
+        public Integer x;
+        public Integer y;
     }
 
     @JsonIgnoreProperties(ignoreUnknown = true)
@@ -135,4 +154,17 @@ public class FlowDefModel {
         }
         return in;
     }
+
+    /** 按出边名取边（多出口节点路由用）；未命中返回 null */
+    public Edge edgeByName(String fromNodeId, String name) {
+        if (name == null) {
+            return null;
+        }
+        for (Edge e : outEdges(fromNodeId)) {
+            if (name.equals(e.name)) {
+                return e;
+            }
+        }
+        return null;
+    }
 }

src/main/java/com/yunhai/flowcenter/engine/FlowEngine.java

@@ -14,13 +14,9 @@ import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.stereotype.Service;
 
 import java.time.LocalDateTime;
-import java.util.ArrayDeque;
-import java.util.Deque;
 import java.util.HashMap;
-import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
-import java.util.Set;
 
 /**
  * 流程引擎推进核心（概览 §5.2 激活规则）：由调用方事务驱动——
@@ -50,19 +46,30 @@ public class FlowEngine {
     }
 
     /**
-     * 某节点全部同意后的放行推进：移出活跃节点集并激活唯一出边目标。
-     * 分支上下文由 {@link #branchKeyOf} 从图上回溯推导（分支内串行链的中间节点无任务级分支标记）。
+     * 某节点全部同意后的放行推进：移出活跃节点集并激活出边目标。
+     * 单出边走唯一出边（旧定义逐字节兼容）；多出边按办理人选的出口名（edgeName，即办理按钮文案）
+     * 选路——未命中时记录错误并保持节点在途，绝不静默走第一条边。
+     * 分支上下文由 {@link BranchScope#keyOf} 从图上回溯推导（分支内串行链的中间节点无任务级分支标记）。
      */
-    public void continueAdvance(FlwInstance instance, FlwDef def, String fromNodeId) {
+    public void continueAdvance(FlwInstance instance, FlwDef def, String fromNodeId, String edgeName) {
         FlowDefModel model = parseModel(def);
         FlowDefModel.Node node = model.nodeById(fromNodeId);
         List<FlowDefModel.Edge> outs = model.outEdges(fromNodeId);
         if (outs.isEmpty()) {
             return;
         }
+        FlowDefModel.Edge chosen = outs.get(0);
+        if (outs.size() > 1) {
+            chosen = model.edgeByName(fromNodeId, edgeName);
+            if (chosen == null) {
+                log.error("[flow-center] 多出口节点未命中出口，推进中止（节点保持在途）：instance={} node={} edgeName={}",
+                        instance.getId(), fromNodeId, edgeName);
+                return;
+            }
+        }
         removeCurrentNode(instance, fromNodeId);
-        String branchKey = branchKeyOf(model, fromNodeId);
-        String next = outs.get(0).to;
+        String branchKey = BranchScope.keyOf(model, fromNodeId);
+        String next = chosen.to;
         FlowDefModel.Node nextNode = model.nodeById(next);
         if (FlowDefModel.TYPE_PARALLEL_JOIN.equals(nextNode.type)) {
             // 会签合并守门：标记本分支到达、全部到达才放行（直通无分支键时 JOIN 直通放行）
@@ -73,34 +80,15 @@ public class FlowEngine {
     }
 
     /**
-     * 回溯 fromNodeId 所在分支的 branchKey（= PARALLEL_SPLIT 出边目标节点 id）：
-     * 沿入边反向走到 split，split→N 边的 N 即分支键；遇 START/PARALLEL_JOIN 边界即停
-     * （join 之后属汇聚链，branchKey 已消耗，返回 null）。
+     * 退回目标激活（FlowTaskService.returnBack 调用）：从 currentNodes 摘除来源节点，
+     * 重新激活目标审批节点建新任务。沿用统一激活入口，split 幂等化后重入并行段不撞分支唯一约束。
      */
-    private String branchKeyOf(FlowDefModel model, String fromNodeId) {
-        Set<String> visited = new HashSet<>();
-        Deque<String> queue = new ArrayDeque<>();
-        queue.add(fromNodeId);
-        visited.add(fromNodeId);
-        while (!queue.isEmpty()) {
-            String cur = queue.poll();
-            for (FlowDefModel.Edge e : model.inEdges(cur)) {
-                FlowDefModel.Node from = model.node(e.from);
-                if (from == null) {
-                    continue;
-                }
-                if (FlowDefModel.TYPE_PARALLEL_SPLIT.equals(from.type)) {
-                    return e.to;
-                }
-                if (FlowDefModel.TYPE_START.equals(from.type)
-                        || FlowDefModel.TYPE_PARALLEL_JOIN.equals(from.type)
-                        || !visited.add(e.from)) {
-                    continue;
-                }
-                queue.add(e.from);
-            }
-        }
-        return null;
+    public void returnTo(FlwInstance instance, FlwDef def, String fromNodeId, String targetNodeId) {
+        FlowDefModel model = parseModel(def);
+        removeCurrentNode(instance, fromNodeId);
+        FlowDefModel.Node target = model.nodeById(targetNodeId);
+        String branchKey = BranchScope.keyOf(model, targetNodeId);
+        advance(instance, model, target.id, branchKey);
     }
 
     /** 统一激活入口：含 JOIN 的到达标记与放行判断 */
@@ -148,10 +136,17 @@ public class FlowEngine {
                 break;
             case FlowDefModel.TYPE_PARALLEL_SPLIT: {
                 for (FlowDefModel.Edge edge : model.outEdges(node.id)) {
-                    FlwBranch branch = new FlwBranch();
-                    branch.setInstanceId(instance.getId());
-                    branch.setBranchKey(edge.to);
-                    branch.setStatus(FlwEnums.BranchStatus.RUNNING.getCode());
+                    // 幂等 upsert：退回重入并行段时分支行已存在（uk instance+branchKey），重置进行中即可
+                    FlwBranch branch = branchRepository
+                            .findByInstanceIdAndBranchKey(instance.getId(), edge.to).orElse(null);
+                    if (branch == null) {
+                        branch = new FlwBranch();
+                        branch.setInstanceId(instance.getId());
+                        branch.setBranchKey(edge.to);
+                        branch.setStatus(FlwEnums.BranchStatus.RUNNING.getCode());
+                    } else {
+                        branch.setStatus(FlwEnums.BranchStatus.RUNNING.getCode());
+                    }
                     branchRepository.save(branch);
                     advance(instance, model, edge.to, edge.to);
                 }

src/main/java/com/yunhai/flowcenter/engine/FlowEvent.java

@@ -28,6 +28,10 @@ public class FlowEvent {
         REJECTED("flow.rejected"),
         /** 提交人撤回，instance=40 */
         WITHDRAWN("flow.withdrawn"),
+        /** 办理人退回上游节点（办件仍在途，instance 仍=10） */
+        RETURNED("flow.returned"),
+        /** 办理人移交办理权给他人（任务换人，办件仍在途） */
+        TRANSFERRED("flow.transferred"),
         /** 催办（仅 UserMsg 通道，非回调事件枚举） */
         URGE("flow.urge");
 

src/main/java/com/yunhai/flowcenter/engine/FlowNodeAdvanceListener.java

@@ -30,9 +30,10 @@ public class FlowNodeAdvanceListener {
         if (nodeId == null) {
             return;
         }
+        String edgeName = (String) event.getData().get("edgeName");
         for (int attempt = 1; attempt <= 3; attempt++) {
             try {
-                advanceService.tryAdvance(event.getInstanceId(), nodeId);
+                advanceService.tryAdvance(event.getInstanceId(), nodeId, edgeName);
                 return;
             } catch (ObjectOptimisticLockingFailureException e) {
                 log.warn("[flow-center] 推进冲突重试 {}/3：instance={} node={}",

src/main/java/com/yunhai/flowcenter/entity/FlwTask.java

@@ -47,7 +47,7 @@ public class FlwTask extends BaseEntity {
     @Column(name = "assignee_name", length = 128)
     private String assigneeName;
 
-    /** 0 待办 / 1 同意 / 2 拒绝 / 3 失效 */
+    /** 0 待办 / 1 同意 / 2 拒绝 / 3 失效 / 4 已退回 / 5 已移交 */
     @Column(name = "status", nullable = false)
     private Integer status = FlwEnums.TaskStatus.PENDING.getCode();
 
@@ -55,6 +55,13 @@ public class FlwTask extends BaseEntity {
     @Column(name = "opinion", length = 500)
     private String opinion;
 
+    /**
+     * 多出口节点办理时选中的出口名（对应 def 边 name）；单出口节点恒为 null。
+     * 节点放行推进时按它决定走哪条边。
+     */
+    @Column(name = "edge_name", length = 64)
+    private String edgeName;
+
     @Column(name = "arrive_time", nullable = false)
     private LocalDateTime arriveTime;
 

src/main/java/com/yunhai/flowcenter/enums/FlwEnums.java

@@ -23,9 +23,13 @@ public final class FlwEnums {
         }
     }
 
-    /** 任务状态：0 待办 / 1 同意 / 2 拒绝 / 3 失效（拒绝/撤回/重启重提时的清理目标） */
+    /**
+     * 任务状态：0 待办 / 1 同意 / 2 拒绝 / 3 失效（拒绝/撤回/重启重提时的清理目标）
+     * / 4 已退回（办理人把流程退回上游节点）/ 5 已移交（办理人把办理权转给他人）。
+     * 4/5 都算"已被办理"：既进我的已办，也阻止提交人撤回。
+     */
     public enum TaskStatus {
-        PENDING(0), APPROVED(1), REJECTED(2), INVALIDATED(3);
+        PENDING(0), APPROVED(1), REJECTED(2), INVALIDATED(3), RETURNED(4), TRANSFERRED(5);
 
         private final int code;
 
@@ -36,6 +40,12 @@ public final class FlwEnums {
         public int getCode() {
             return code;
         }
+
+        /** "已被办理"状态集（本人已办列表、撤回守卫共用口径），勿在各处硬编码字面量 */
+        public static java.util.List<Integer> handledCodes() {
+            return java.util.Arrays.asList(APPROVED.getCode(), REJECTED.getCode(),
+                    RETURNED.getCode(), TRANSFERRED.getCode());
+        }
     }
 
     /** 并行分支状态：0 进行中 / 1 已到达汇聚点 / 2 已失效 */

src/main/java/com/yunhai/flowcenter/model/FlowModels.java

@@ -76,6 +76,15 @@ public final class FlowModels {
         /** 当前用户可否办理（存在本人的待办任务） */
         private boolean myPendingTask;
         private List<Long> myPendingTaskIds;
+        /**
+         * 本人待办所在节点的出口列表（多出口办理按钮，[{name,toNodeId,toNodeName}]）；
+         * 单出口/无待办为空数组——前端据此决定是否显示去向选择器。
+         */
+        private List<Map<String, Object>> outlets;
+        /** 可退回目标（主线已办审批节点去重，排除当前节点）[{nodeId,nodeName}] */
+        private List<Map<String, Object>> returnTargets;
+        /** 本人待办可否移交（恒=有本人待办，展示用） */
+        private boolean canTransfer;
     }
 
     /** 流程示意图出参（用户面 /diagram 与管理面 /admin/def/diagram 共用，方案 §3.1） */
@@ -91,9 +100,11 @@ public final class FlowModels {
         private String mode;
         private List<NodeVo> nodes;
         private List<EdgeVo> edges;
+        /** 画布坐标（nodeId→{x,y}，设计器保存时透传；空=查看器自行自动布局） */
+        private Map<String, Map<String, Integer>> layout;
     }
 
-    /** 示意图节点（label/subLabel 已按视图解析好，前端只画不解析） */
+    /** 示意图节点（label/subLabel 已按视图解析好，前端只画不解析；state 仅 instance 口径有值） */
     @Data
     public static class NodeVo {
         private String id;
@@ -104,12 +115,18 @@ public final class FlowModels {
         private String assigneeType;
         private String countersign;
         private Integer deadlineHours;
+        /**
+         * 运行时状态（仅 instanceId 口径）：done 已办过 / active 当前在办 / pending 未到 /
+         * rejected 被拒绝 / 其他为 null。flowGuid 口径恒 null。
+         */
+        private String state;
     }
 
-    /** 示意图连边 */
+    /** 示意图连边（name=出口文案，多出口节点显示为连线标签） */
     @Data
     public static class EdgeVo {
         private String from;
         private String to;
+        private String name;
     }
 }

src/main/java/com/yunhai/flowcenter/notify/UserMsgClient.java

@@ -1,9 +1,12 @@
 package com.yunhai.flowcenter.notify;
 
 import com.yunhai.platform.apistd.BizException;
+import com.yunhai.platform.openapi.core.PlatformService;
+import com.yunhai.platform.openapi.core.YschOpenCall;
+import com.yunhai.platform.openapi.msg.YschMsgOpenApi;
+import com.yunhai.platform.openapi.msg.model.SendMsgRequest;
+import com.yunhai.platform.openapi.msg.model.TodoCountRequest;
 import com.yunhai.platform.utils.http.IDHttp;
-import lombok.Data;
-import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
@@ -11,30 +14,56 @@ import org.springframework.stereotype.Service;
 import java.util.List;
 
 /**
- * UserMsg 站内信客户端（概览 §七 契约，M1 手工三件套路线的<b>直达版</b>）：
- * 经共享 IDHttp（yh-openapi 装配的出站自动签名 RestTemplate，X-App-Key/X-Timestamp/X-Signature
- * = SignUtil.signRequest 请求级 canonical，与 svc-hall FlowCenterClient 同一套通道）直调
- * UserMsg /oapi/msg/**。前提：UserMsg 侧 trusted-apps 白名单收本应用 appKey（本地占位 100019）；
- * SDK（yh-usermsg-spring-boot-starter）落地后整体切换为 SDK 调用，契约不变。
- * 发送方不阻断主业务：失败只记日志（对齐 PartyLearn 容错语义），由调用方在 AFTER_COMMIT 监听器里容错。
+ * UserMsg 站内信客户端（概览 §七 契约）：主路径走 SDK 类型化门面 {@link YschMsgOpenApi}
+ * （服务目录 key={@code usermsg}：yh.call.targets &gt; yh.open.services &gt; 枚举兜底
+ * base-host + /usermsg）——签名/信封/错误映射由 SDK 统一承载，本应用零专属地址配置
+ * （《子应用配置优化方案》§4.2）。目录未显式配置时回落 legacy
+ * {@code flow-center.usermsg.base-url}（ad-hoc，迁移期兼容）。<br><br>
+ * 发送方不阻断主业务：失败只记日志（对齐 PartyLearn 容错语义），由调用方在 AFTER_COMMIT
+ * 监听器里容错。{@code flow-center.usermsg.enabled=false} 时全部方法静默返回（UserMsg 未部署
+ * 的部署形态；生产当前即此态，避免打 localhost 的空转告警）。
  */
 @Slf4j
 @Service
-@RequiredArgsConstructor
 public class UserMsgClient {
 
+    /** 服务目录命名目标（UserMsg 已入 PlatformService 枚举：key=usermsg、ctx=/usermsg） */
+    private static final String DIRECTORY_KEY = PlatformService.USERMSG.key();
+
+    private final YschOpenCall openCall;
     private final IDHttp http;
+    private final boolean enabled;
+    private final String legacyBaseUrl;
+    private final boolean directoryResolved;
 
-    @Value("${flow-center.usermsg.enabled:false}")
-    private boolean enabled;
-
-    @Value("${flow-center.usermsg.base-url:http://localhost:8080}")
-    private String baseUrl;
+    public UserMsgClient(YschOpenCall openCall,
+                         IDHttp http,
+                         @Value("${flow-center.usermsg.enabled:false}") boolean enabled,
+                         @Value("${flow-center.usermsg.base-url:}") String baseUrl) {
+        this.openCall = openCall;
+        this.http = http;
+        this.enabled = enabled;
+        this.legacyBaseUrl = baseUrl == null ? "" : trimTrailing(baseUrl.trim());
+        this.directoryResolved = openCall != null && openCall.hasTarget(DIRECTORY_KEY);
+        if (directoryResolved) {
+            YschMsgOpenApi.setCall(openCall);
+        }
+        if (enabled && !directoryResolved && legacyBaseUrl.isEmpty()) {
+            // enabled=true 表示确实要发；目录与 legacy 键都缺 → 构造期 fail-fast
+            throw new IllegalStateException("UserMsg 调用地址未配置：请配置服务目录 yh.open.services."
+                    + DIRECTORY_KEY + "（推荐，容器直连完整 URL）或回落键 flow-center.usermsg.base-url");
+        }
+    }
 
     public boolean enabled() {
         return enabled;
     }
 
+    /** 是否走服务目录命名目标（配置自检用） */
+    public boolean directoryResolved() {
+        return directoryResolved;
+    }
+
     /** 发送站内信（content 必填；msgNo 幂等，重发安全） */
     public void sendUserMsg(Integer schId, List<Integer> userIds, Integer msgType, String bizType,
                             String bizId, String title, String content, String jumpPath, String msgNo,
@@ -57,7 +86,11 @@ public class UserMsgClient {
         body.setSchId(schId);
         body.setExpireDays(expireDays);
         try {
-            http.post(trimTrailing(baseUrl) + "/oapi/msg/sendUserMsg", body, Object.class);
+            if (directoryResolved) {
+                YschMsgOpenApi.sendUserMsg(body);
+            } else {
+                http.post(legacyBaseUrl + "/oapi/msg/sendUserMsg", body, Object.class);
+            }
         } catch (BizException e) {
             log.warn("[flow-center] UserMsg 发送被拒：msgNo={} msg={}", msgNo, e.getMessage());
         } catch (Exception e) {
@@ -75,7 +108,11 @@ public class UserMsgClient {
         body.setCount(count);
         body.setSchId(schId);
         try {
-            http.post(trimTrailing(baseUrl) + "/oapi/msg/todo/inc", body, Object.class);
+            if (directoryResolved) {
+                YschMsgOpenApi.todoInc(body);
+            } else {
+                http.post(legacyBaseUrl + "/oapi/msg/todo/inc", body, Object.class);
+            }
         } catch (Exception e) {
             log.warn("[flow-center] UserMsg 角标增量失败（不阻断主业务）：userIds={} count={} {}",
                     userIds, count, e.toString());
@@ -85,31 +122,4 @@ public class UserMsgClient {
     private static String trimTrailing(String url) {
         return url.endsWith("/") ? url.substring(0, url.length() - 1) : url;
     }
-
-    /** /oapi/msg/sendUserMsg 请求体（UserMsg SendMsgRequest 同构，字段逐字对齐） */
-    @Data
-    public static class SendMsgRequest {
-        private List<Integer> userIds;
-        private String title;
-        /** 必填（UserMsg @NotBlank） */
-        private String content;
-        private String msgNo;
-        private String bizType;
-        private String bizId;
-        /** 0系统通知/1业务提醒/2审批待办 */
-        private Integer msgType;
-        /** 0无跳转/1应用内路径/2外链 */
-        private Integer jumpType;
-        private String jumpPath;
-        private Integer schId;
-        private Integer expireDays;
-    }
-
-    /** /oapi/msg/todo/inc 请求体（UserMsg TodoCountRequest 同构） */
-    @Data
-    public static class TodoCountRequest {
-        private List<Integer> userIds;
-        private Integer count;
-        private Integer schId;
-    }
 }

src/main/java/com/yunhai/flowcenter/notify/UserMsgNotifier.java

@@ -40,6 +40,12 @@ public class UserMsgNotifier {
             case TASK_HANDLED:
                 notifyTaskHandled(event);
                 break;
+            case RETURNED:
+                notifyReturned(event);
+                break;
+            case TRANSFERRED:
+                notifyTaskCreated(event);
+                break;
             case COMPLETED:
             case REJECTED:
             case WITHDRAWN:
@@ -80,6 +86,36 @@ public class UserMsgNotifier {
                 Collections.singletonList(task.getAssigneeId()), -1);
     }
 
+    /**
+     * 退回：通知被退回节点的全部新待办人（RETURNED 事件 data.targetNodeIds 由服务层带上——
+     * 退回重建任务在事件发布前已提交，这里按节点查待办即可）；todo 角标由 notifyTaskCreated
+     * 通用链路在引擎重建任务时已发过，这里只补一条带退回意见的消息。
+     */
+    private void notifyReturned(FlowEvent event) {
+        FlwInstance instance = instanceOf(event.getInstanceId());
+        if (instance == null || event.getData() == null) {
+            return;
+        }
+        Object fromNode = event.getData().get("fromNodeName");
+        Object opinion = event.getData().get("opinion");
+        StringBuilder content = new StringBuilder("「").append(safe(instance.getBizTitle())).append("」")
+                .append("被退回（").append(fromNode == null ? "" : fromNode).append("）");
+        if (opinion != null && !String.valueOf(opinion).isEmpty()) {
+            content.append("，意见：").append(opinion);
+        }
+        java.util.List<Integer> targets = event.getData().get("targetUserIds") == null
+                ? Collections.emptyList()
+                : (java.util.List<Integer>) event.getData().get("targetUserIds");
+        if (targets.isEmpty()) {
+            return;
+        }
+        userMsgClient.sendUserMsg(instance.getSchId().intValue(), targets, 1,
+                "flow.returned", String.valueOf(instance.getId()),
+                "办件被退回：" + safe(instance.getBizTitle()), content.toString(),
+                "/instance/" + instance.getId(),
+                "returned:" + instance.getId() + ":" + instance.getVersion(), 30);
+    }
+
     private void notifyResult(FlowEvent event) {
         FlwInstance instance = instanceOf(event.getInstanceId());
         if (instance == null) {

src/main/java/com/yunhai/flowcenter/repository/FlwTaskRepository.java

@@ -21,15 +21,33 @@ public interface FlwTaskRepository extends JpaRepository<FlwTask, Long> {
 
     /** 任务办理抢占（概览 §5.4）：affected=1 才获得推进权，防双击/并发重复推进 */
     @Modifying
-    @Query("update FlwTask t set t.status = :target, t.handleTime = :handleTime, t.opinion = :opinion "
-            + "where t.id = :id and t.status = 0")
+    @Query("update FlwTask t set t.status = :target, t.handleTime = :handleTime, t.opinion = :opinion, "
+            + "t.edgeName = :edgeName where t.id = :id and t.status = 0")
     int claimAndFinish(@Param("id") Long id, @Param("target") Integer target,
-                       @Param("handleTime") LocalDateTime handleTime, @Param("opinion") String opinion);
+                       @Param("handleTime") LocalDateTime handleTime, @Param("opinion") String opinion,
+                       @Param("edgeName") String edgeName);
 
     @Modifying
     @Query("update FlwTask t set t.status = 3 where t.instanceId = :instanceId and t.status = 0")
     int invalidatePendingByInstance(@Param("instanceId") Long instanceId);
 
+    /**
+     * 失效指定节点的待办（退回专用）：不能按办件整体失效——并行兄弟分支的待办必须保留。
+     */
+    @Modifying
+    @Query("update FlwTask t set t.status = 3 where t.instanceId = :instanceId and t.status = 0 "
+            + "and t.nodeId = :nodeId")
+    int invalidatePendingByNode(@Param("instanceId") Long instanceId, @Param("nodeId") String nodeId);
+
+    /**
+     * 失效同节点除指定任务外的待办（或签 ANY 专用）：任一人同意后兄弟待办作废。
+     */
+    @Modifying
+    @Query("update FlwTask t set t.status = 3 where t.instanceId = :instanceId and t.status = 0 "
+            + "and t.nodeId = :nodeId and t.id <> :exceptTaskId")
+    int invalidatePendingByNodeExcept(@Param("instanceId") Long instanceId, @Param("nodeId") String nodeId,
+                                      @Param("exceptTaskId") Long exceptTaskId);
+
     @Modifying
     @Query("update FlwTask t set t.status = 3 where t.instanceId = :instanceId and t.status = 0 and t.id <> :exceptTaskId")
     int invalidatePendingExcept(@Param("instanceId") Long instanceId, @Param("exceptTaskId") Long exceptTaskId);
@@ -39,9 +57,9 @@ public interface FlwTaskRepository extends JpaRepository<FlwTask, Long> {
             + "order by t.arriveTime asc, t.id asc")
     Page<FlwTask> pageTodo(@Param("schId") Long schId, @Param("assigneeId") Integer assigneeId, Pageable pageable);
 
-    /** 我的已办（办理过的历史任务） */
-    @Query("select t from FlwTask t where t.schId = :schId and t.assigneeId = :assigneeId and t.status in (1, 2) "
-            + "order by t.handleTime desc, t.id desc")
+    /** 我的已办（办理过的历史任务，含退回/移交） */
+    @Query("select t from FlwTask t where t.schId = :schId and t.assigneeId = :assigneeId "
+            + "and t.status in (1, 2, 4, 5) order by t.handleTime desc, t.id desc")
     Page<FlwTask> pageDone(@Param("schId") Long schId, @Param("assigneeId") Integer assigneeId, Pageable pageable);
 
     /** 超期待催任务（定时扫描：待办+超期+未达催办上限） */

src/main/java/com/yunhai/flowcenter/service/FlowDiagramService.java

@@ -5,12 +5,15 @@ import com.yunhai.flowcenter.engine.FlowEngine;
 import com.yunhai.flowcenter.entity.FlwAssigneeMap;
 import com.yunhai.flowcenter.entity.FlwDef;
 import com.yunhai.flowcenter.entity.FlwInstance;
+import com.yunhai.flowcenter.entity.FlwTask;
 import com.yunhai.flowcenter.enums.FlwEnums;
 import com.yunhai.flowcenter.model.FlowModels;
 import com.yunhai.flowcenter.repository.FlwAssigneeMapRepository;
 import com.yunhai.flowcenter.repository.FlwDefRepository;
+import com.yunhai.flowcenter.repository.FlwInstanceRepository;
+import com.yunhai.flowcenter.repository.FlwTaskRepository;
 import com.yunhai.platform.apistd.BizException;
-import com.yunhai.platform.openapi.client.OpenApiUserClient;
+import com.yunhai.platform.openapi.base.OpenApiUserClient;
 import com.yunhai.platform.utils.exception.ErrorCode;
 import com.yunhai.platform.utils.model.BoaUser;
 import lombok.RequiredArgsConstructor;
@@ -18,7 +21,11 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.HashSet;
 
 /**
  * 流程示意图出图（方案 §3.2）：后端按视图解析好节点 label/subLabel，前端只画图不解析。
@@ -42,6 +49,8 @@ public class FlowDiagramService {
 
     private final FlwDefRepository defRepository;
     private final FlwAssigneeMapRepository mapRepository;
+    private final FlwInstanceRepository instanceRepository;
+    private final FlwTaskRepository taskRepository;
     private final FlowEngine flowEngine;
     private final OpenApiUserClient userClient;
 
@@ -87,12 +96,65 @@ public class FlowDiagramService {
             FlowModels.EdgeVo ev = new FlowModels.EdgeVo();
             ev.setFrom(e.from);
             ev.setTo(e.to);
+            ev.setName(e.name);
             edges.add(ev);
         }
         vo.setEdges(edges);
+        // 画布坐标透传（设计器保存；缺失时前端自行 Kahn 布局）
+        if (model.layout != null && !model.layout.isEmpty()) {
+            Map<String, Map<String, Integer>> layout = new HashMap<>();
+            for (Map.Entry<String, FlowDefModel.Layout> en : model.layout.entrySet()) {
+                if (en.getValue() == null) {
+                    continue;
+                }
+                Map<String, Integer> p = new HashMap<>();
+                p.put("x", en.getValue().x);
+                p.put("y", en.getValue().y);
+                layout.put(en.getKey(), p);
+            }
+            vo.setLayout(layout);
+        }
+        // instance 口径：按任务轨迹给节点上运行时状态（前端高亮在办节点）
+        if (instanceId != null) {
+            Map<String, String> states = nodeStates(instanceId, model);
+            for (FlowModels.NodeVo nv : nodes) {
+                nv.setState(states.get(nv.getId()));
+            }
+        }
         return vo;
     }
 
+    /**
+     * 办件节点运行时状态：done=已有已同意任务 / rejected=有拒绝任务（终态前）/
+     * active=在 currentNodes / pending=其余。active 优先于 done（退回后重到同节点算在办）。
+     */
+    private Map<String, String> nodeStates(Long instanceId, FlowDefModel model) {
+        Map<String, String> states = new HashMap<>();
+        Set<String> activeNodes = new HashSet<>();
+        FlwInstance instance = instanceRepository.findById(instanceId).orElse(null);
+        if (instance != null && instance.getCurrentNodes() != null && !instance.getCurrentNodes().isEmpty()) {
+            activeNodes.addAll(java.util.Arrays.asList(instance.getCurrentNodes().split(",")));
+        }
+        for (FlowDefModel.Node n : model.nodes) {
+            states.put(n.id, null);
+        }
+        for (FlwTask t : taskRepository.findByInstanceIdOrderByIdAsc(instanceId)) {
+            String nodeState = states.get(t.getNodeId());
+            if (t.getStatus() == FlwEnums.TaskStatus.REJECTED.getCode()) {
+                states.put(t.getNodeId(), "rejected");
+            } else if (t.getStatus() == FlwEnums.TaskStatus.APPROVED.getCode()
+                    && nodeState == null && !activeNodes.contains(t.getNodeId())) {
+                states.put(t.getNodeId(), "done");
+            }
+        }
+        for (String nodeId : activeNodes) {
+            if (states.containsKey(nodeId)) {
+                states.put(nodeId, "active");
+            }
+        }
+        return states;
+    }
+
     private FlowModels.NodeVo toNodeVo(Long schId, FlowDefModel.Node n, String mode) {
         FlowModels.NodeVo vo = new FlowModels.NodeVo();
         vo.setId(n.id);

src/main/java/com/yunhai/flowcenter/service/FlowInstanceService.java

@@ -126,8 +126,7 @@ public class FlowInstanceService {
             throw new BizException(ErrorCode.PARAM_ERROR, "仅审批中的办件可撤回");
         }
         if (!taskRepository.findByInstanceIdAndStatusIn(instanceId,
-                java.util.Arrays.asList(FlwEnums.TaskStatus.APPROVED.getCode(),
-                        FlwEnums.TaskStatus.REJECTED.getCode())).isEmpty()) {
+                FlwEnums.TaskStatus.handledCodes()).isEmpty()) {
             throw new BizException(ErrorCode.PARAM_ERROR, "已有任务被办理，不能撤回");
         }
         instance.setStatus(FlwEnums.InstanceStatus.WITHDRAWN.getCode());

src/main/java/com/yunhai/flowcenter/service/FlowMapAdminService.java

@@ -5,8 +5,8 @@ import com.yunhai.flowcenter.repository.FlwAssigneeMapRepository;
 import com.yunhai.platform.apistd.BizException;
 import com.yunhai.platform.utils.exception.ErrorCode;
 import com.yunhai.platform.utils.model.BoaUser;
-import com.yunhai.platform.openapi.client.OpenApiGroupClient;
-import com.yunhai.platform.openapi.client.OpenApiUserClient;
+import com.yunhai.platform.openapi.base.OpenApiGroupClient;
+import com.yunhai.platform.openapi.base.OpenApiUserClient;
 import com.yunhai.platform.utils.model.BoaGroup;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;

src/main/java/com/yunhai/flowcenter/service/FlowQueryService.java

@@ -1,5 +1,7 @@
 package com.yunhai.flowcenter.service;
 
+import com.yunhai.flowcenter.engine.BranchScope;
+import com.yunhai.flowcenter.engine.FlowDefModel;
 import com.yunhai.flowcenter.engine.FlowEngine;
 import com.yunhai.flowcenter.entity.FlwBranch;
 import com.yunhai.flowcenter.entity.FlwDef;
@@ -111,6 +113,7 @@ public class FlowQueryService {
             row.put("handleTime", str(t.getHandleTime()));
             row.put("deadline", str(t.getDeadline()));
             row.put("urgeCount", t.getUrgeCount());
+            row.put("edgeName", t.getEdgeName());
             trace.add(row);
         }
         detail.setTrace(trace);
@@ -135,6 +138,53 @@ public class FlowQueryService {
         }
         FlwDef def = defRepository.findById(instance.getDefId()).orElse(null);
         detail.setNodeSummary(def == null ? "" : FlowEngine.nodeSummary(flowEngine.parseModel(def)));
+        // 办理面板数据（出口/退回目标/移交标记）：仅对持本人待办的查看者填充
+        FlwTask myPend = viewerId == null ? null : tasks.stream()
+                .filter(t -> viewerId.equals(t.getAssigneeId())
+                        && t.getStatus() == FlwEnums.TaskStatus.PENDING.getCode())
+                .findFirst().orElse(null);
+        if (myPend != null && def != null) {
+            FlowDefModel model = flowEngine.parseModel(def);
+            String curNodeId = myPend.getNodeId();
+            List<FlowDefModel.Edge> outs = model.outEdges(curNodeId);
+            if (outs.size() > 1) {
+                List<Map<String, Object>> outlets = new ArrayList<>();
+                for (FlowDefModel.Edge e : outs) {
+                    Map<String, Object> o = new HashMap<>();
+                    o.put("name", e.name);
+                    o.put("toNodeId", e.to);
+                    FlowDefModel.Node to = model.node(e.to);
+                    o.put("toNodeName", to == null ? e.to
+                            : (to.name == null || to.name.isEmpty() ? e.to : to.name));
+                    outlets.add(o);
+                }
+                detail.setOutlets(outlets);
+            } else {
+                detail.setOutlets(new ArrayList<>());
+            }
+            // 可退回目标：办件已办过的主线审批节点（去重，排除当前节点）
+            Map<String, Map<String, Object>> targets = new java.util.LinkedHashMap<>();
+            for (FlwTask t : tasks) {
+                if (t.getStatus() != FlwEnums.TaskStatus.APPROVED.getCode()
+                        || t.getNodeId().equals(myPend.getNodeId())
+                        || BranchScope.keyOf(model, t.getNodeId()) != null) {
+                    continue;
+                }
+                FlowDefModel.Node node = model.node(t.getNodeId());
+                if (node != null && FlowDefModel.TYPE_APPROVAL.equals(node.type)
+                        && !targets.containsKey(t.getNodeId())) {
+                    Map<String, Object> r = new HashMap<>();
+                    r.put("nodeId", node.id);
+                    r.put("nodeName", node.name == null || node.name.isEmpty() ? node.id : node.name);
+                    targets.put(node.id, r);
+                }
+            }
+            detail.setReturnTargets(new ArrayList<>(targets.values()));
+            detail.setCanTransfer(true);
+        } else {
+            detail.setOutlets(new ArrayList<>());
+            detail.setReturnTargets(new ArrayList<>());
+        }
         return detail;
     }
 

src/main/java/com/yunhai/flowcenter/service/FlowTaskService.java

@@ -1,13 +1,17 @@
 package com.yunhai.flowcenter.service;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.yunhai.flowcenter.engine.AssigneeResolver;
+import com.yunhai.flowcenter.engine.BranchScope;
 import com.yunhai.flowcenter.engine.FlowDefModel;
 import com.yunhai.flowcenter.engine.FlowEvent;
+import com.yunhai.flowcenter.engine.FlowEngine;
 import com.yunhai.flowcenter.entity.FlwDef;
 import com.yunhai.flowcenter.entity.FlwInstance;
 import com.yunhai.flowcenter.entity.FlwTask;
 import com.yunhai.flowcenter.enums.FlwEnums;
 import com.yunhai.flowcenter.repository.FlwBranchRepository;
+import com.yunhai.flowcenter.repository.FlwDefRepository;
 import com.yunhai.flowcenter.repository.FlwInstanceRepository;
 import com.yunhai.flowcenter.repository.FlwTaskRepository;
 import com.yunhai.platform.apistd.BizException;
@@ -38,15 +42,20 @@ public class FlowTaskService {
     private final FlwTaskRepository taskRepository;
     private final FlwInstanceRepository instanceRepository;
     private final FlwBranchRepository branchRepository;
+    private final FlwDefRepository defRepository;
+    private final AssigneeResolver assigneeResolver;
+    private final FlowEngine flowEngine;
     private final ApplicationEventPublisher eventPublisher;
 
     /**
      * 办理（同意/拒绝收敛点，概览 §8.5 不变式 2）。
      *
+     * @param edgeName 多出口节点的所选出口（办理按钮文案）；单出结节忽略，出度>1 时必填
      * @return 办理后的任务（含最新状态）
      */
     @Transactional
-    public FlwTask handle(Long schId, Long taskId, boolean approved, String opinion, Integer operatorId) {
+    public FlwTask handle(Long schId, Long taskId, boolean approved, String opinion,
+                          Integer operatorId, String edgeName) {
         FlwTask task = taskRepository.findById(taskId)
                 .orElseThrow(() -> new BizException(ErrorCode.PARAM_ERROR, "任务不存在：" + taskId));
         if (!task.getSchId().equals(schId)) {
@@ -58,10 +67,12 @@ public class FlowTaskService {
         if (!approved && (opinion == null || opinion.trim().isEmpty())) {
             throw new BizException(ErrorCode.PARAM_ERROR, "拒绝必须填写意见");
         }
+        // 多出口选路校验（发布期已保证出口命名唯一）：出度>1 必须带上出口名且能命中
+        String chosenEdge = normalizeEdgeName(task, approved, edgeName);
         // 原子抢占：affected=1 才获得办理权（防双击/并发重复推进）
         int target = approved ? FlwEnums.TaskStatus.APPROVED.getCode() : FlwEnums.TaskStatus.REJECTED.getCode();
         LocalDateTime now = LocalDateTime.now();
-        if (taskRepository.claimAndFinish(taskId, target, now, opinion) != 1) {
+        if (taskRepository.claimAndFinish(taskId, target, now, opinion, chosenEdge) != 1) {
             throw new BizException(ErrorCode.PARAM_ERROR, "任务已被办理或已失效，请刷新");
         }
         FlwTask handled = taskRepository.findById(taskId).orElse(null);
@@ -82,14 +93,63 @@ public class FlowTaskService {
         if (opinion != null && !opinion.isEmpty()) {
             data.put("opinion", opinion);
         }
+        if (chosenEdge != null) {
+            data.put("edgeName", chosenEdge);
+        }
         eventPublisher.publishEvent(FlowEvent.of(FlowEvent.Type.TASK_HANDLED,
                 instance.getId(), taskId, data));
         if (!approved) {
             rejectFlow(instance, task, opinion);
+        } else if (FlowDefModel.COUNTERSIGN_ANY.equals(countersignOf(task))) {
+            // 或签（ANY）：任一人同意即放行，失效同节点兄弟待办——
+            // 推进监听器只认 pending==0，不失效会卡到所有人办完（行为等同 ALL 的历史缺陷）
+            taskRepository.invalidatePendingByNodeExcept(instance.getId(), task.getNodeId(), taskId);
         }
         return handled;
     }
 
+    /** 旧签名兼容（单出口调用方） */
+    @Transactional
+    public FlwTask handle(Long schId, Long taskId, boolean approved, String opinion, Integer operatorId) {
+        return handle(schId, taskId, approved, opinion, operatorId, null);
+    }
+
+    /** 出度>1 的节点必须选有效出口；单出口一律置 null（旧前端零改动） */
+    private String normalizeEdgeName(FlwTask task, boolean approved, String edgeName) {
+        if (!approved) {
+            return null;
+        }
+        FlwDef def = defRepository.findById(instanceRepository.findById(task.getInstanceId())
+                .map(FlwInstance::getDefId).orElse(null)).orElse(null);
+        if (def == null) {
+            return null;
+        }
+        FlowDefModel model = FlowDefModel.parse(objectMapper, def.getContentJson());
+        java.util.List<FlowDefModel.Edge> outs = model.outEdges(task.getNodeId());
+        if (outs.size() <= 1) {
+            return null;
+        }
+        if (edgeName == null || edgeName.trim().isEmpty()) {
+            throw new BizException(ErrorCode.PARAM_ERROR, "该节点有多个出口，请选择办理去向");
+        }
+        FlowDefModel.Edge hit = model.edgeByName(task.getNodeId(), edgeName.trim());
+        if (hit == null) {
+            throw new BizException(ErrorCode.PARAM_ERROR, "无效的办理去向：" + edgeName);
+        }
+        return hit.name;
+    }
+
+    /** 该任务所属节点的会签模式（定义缺失/未配置按 ALL） */
+    private String countersignOf(FlwTask task) {
+        FlwDef def = defRepository.findById(instanceRepository.findById(task.getInstanceId())
+                .map(FlwInstance::getDefId).orElse(null)).orElse(null);
+        if (def == null) {
+            return FlowDefModel.COUNTERSIGN_ALL;
+        }
+        FlowDefModel.Node node = FlowDefModel.parse(objectMapper, def.getContentJson()).node(task.getNodeId());
+        return node == null || node.countersign == null ? FlowDefModel.COUNTERSIGN_ALL : node.countersign;
+    }
+
     /** END_REJECTED 拒绝终态（概览 §5.3）：同批待办失效→分支失效→办件=30→拒绝事件 */
     private void rejectFlow(FlwInstance instance, FlwTask task, String opinion) {
         instance.setStatus(FlwEnums.InstanceStatus.REJECTED.getCode());
@@ -106,6 +166,150 @@ public class FlowTaskService {
                 instance.getId(), task.getId(), data));
     }
 
+    /**
+     * 退回（B3）：把流程退回上游已办节点重新办理。当前任务置 RETURNED、当前节点待办全部失效、
+     * 目标节点重新激活建新任务；办件保持审批中（区别于拒绝=终态）。
+     * v1 限定主线节点（BranchScope.keyOf(target)==null），分支内退回登记二期。
+     *
+     * @param targetNodeId 退回目标节点；空=最近一个已办节点（任务轨迹 handleTime 降序）
+     */
+    @Transactional
+    public void returnBack(Long schId, Long taskId, String targetNodeId, String opinion, Integer operatorId) {
+        FlwTask task = requirePendingTask(schId, taskId, operatorId);
+        FlwInstance instance = instanceRepository.findById(task.getInstanceId())
+                .orElseThrow(() -> new BizException(ErrorCode.PARAM_ERROR, "办件不存在"));
+        FlwDef def = defRepository.findById(instance.getDefId())
+                .orElseThrow(() -> new BizException(ErrorCode.PARAM_ERROR, "流程定义缺失"));
+        FlowDefModel model = FlowDefModel.parse(objectMapper, def.getContentJson());
+
+        String target = resolveReturnTarget(model, instance, task, targetNodeId);
+        FlowDefModel.Node targetNode = model.node(target);
+        if (!FlowDefModel.TYPE_APPROVAL.equals(targetNode.type)) {
+            throw new BizException(ErrorCode.PARAM_ERROR, "退回目标必须是审批节点：" + target);
+        }
+        if (BranchScope.keyOf(model, target) != null) {
+            throw new BizException(ErrorCode.PARAM_ERROR, "暂不支持退回到并行分支内的节点");
+        }
+
+        LocalDateTime now = LocalDateTime.now();
+        String fromLabel = task.getNodeName() == null ? task.getNodeId() : task.getNodeName();
+        String targetLabel = targetNode.name == null ? target : targetNode.name;
+        if (taskRepository.claimAndFinish(taskId, FlwEnums.TaskStatus.RETURNED.getCode(), now,
+                "退回至 " + targetLabel + (opinion == null || opinion.isEmpty() ? "" : "：" + opinion), null) != 1) {
+            throw new BizException(ErrorCode.PARAM_ERROR, "任务已被办理或已失效，请刷新");
+        }
+        taskRepository.invalidatePendingByNode(instance.getId(), task.getNodeId());
+        flowEngine.returnTo(instance, def, task.getNodeId(), target);
+        instanceRepository.save(instance);
+
+        Map<String, Object> data = new HashMap<>();
+        data.put("fromNodeId", task.getNodeId());
+        data.put("fromNodeName", fromLabel);
+        data.put("targetNodeId", target);
+        data.put("targetNodeName", targetLabel);
+        if (opinion != null && !opinion.isEmpty()) {
+            data.put("opinion", opinion);
+        }
+        data.put("targetUserIds", taskRepository
+                .findByInstanceIdAndStatus(instance.getId(), FlwEnums.TaskStatus.PENDING.getCode()).stream()
+                .filter(t -> target.equals(t.getNodeId()))
+                .map(FlwTask::getAssigneeId)
+                .collect(java.util.stream.Collectors.toList()));
+        eventPublisher.publishEvent(FlowEvent.of(FlowEvent.Type.RETURNED, instance.getId(), taskId, data));
+    }
+
+    /** 退回目标解析：显式指定须合法；缺省取最近一个已办节点 */
+    private String resolveReturnTarget(FlowDefModel model, FlwInstance instance, FlwTask task,
+                                       String targetNodeId) {
+        if (targetNodeId != null && !targetNodeId.trim().isEmpty()) {
+            FlowDefModel.Node node = model.node(targetNodeId.trim());
+            if (node == null) {
+                throw new BizException(ErrorCode.PARAM_ERROR, "退回目标节点不存在：" + targetNodeId);
+            }
+            if (node.id.equals(task.getNodeId())) {
+                throw new BizException(ErrorCode.PARAM_ERROR, "不能退回当前节点");
+            }
+            return node.id;
+        }
+        return taskRepository.findByInstanceIdOrderByIdAsc(instance.getId()).stream()
+                .filter(t -> FlwEnums.TaskStatus.APPROVED.getCode() == t.getStatus())
+                .filter(t -> !task.getNodeId().equals(t.getNodeId()))
+                .filter(t -> BranchScope.keyOf(model, t.getNodeId()) == null)
+                .reduce((first, second) -> second)
+                .map(FlwTask::getNodeId)
+                .orElseThrow(() -> new BizException(ErrorCode.PARAM_ERROR,
+                        "无可退回的上游节点，请使用拒绝"));
+    }
+
+    /**
+     * 移交（B4）：办理权转给他人。当前任务置 TRANSFERRED 留痕，同节点新建一条待办给目标人
+     * （deadline 沿用原任务）；推进监听器因新待办 pending>0 自然不放行，无需改推进逻辑。
+     * 目标人存在性由 AssigneeResolver 严格校验（查不到必须拒绝，否则产生僵尸待办）。
+     */
+    @Transactional
+    public void transfer(Long schId, Long taskId, Integer toUserId, String reason, Integer operatorId) {
+        if (toUserId == null) {
+            throw new BizException(ErrorCode.PARAM_ERROR, "缺少移交对象");
+        }
+        FlwTask task = requirePendingTask(schId, taskId, operatorId);
+        if (toUserId.equals(task.getAssigneeId())) {
+            throw new BizException(ErrorCode.PARAM_ERROR, "不能移交给当前办理人本人");
+        }
+        FlwInstance instance = instanceRepository.findById(task.getInstanceId())
+                .orElseThrow(() -> new BizException(ErrorCode.PARAM_ERROR, "办件不存在"));
+        String toUserName = assigneeResolver.requireUserName(toUserId);
+
+        LocalDateTime now = LocalDateTime.now();
+        String fromLabel = task.getNodeName() == null ? task.getNodeId() : task.getNodeName();
+        if (taskRepository.claimAndFinish(taskId, FlwEnums.TaskStatus.TRANSFERRED.getCode(), now,
+                "移交给 " + (toUserName.isEmpty() ? toUserId : toUserName)
+                        + (reason == null || reason.isEmpty() ? "" : "：" + reason), null) != 1) {
+            throw new BizException(ErrorCode.PARAM_ERROR, "任务已被办理或已失效，请刷新");
+        }
+        FlwTask newTask = new FlwTask();
+        newTask.setInstanceId(task.getInstanceId());
+        newTask.setSchId(task.getSchId());
+        newTask.setNodeId(task.getNodeId());
+        newTask.setNodeName(task.getNodeName());
+        newTask.setAssigneeId(toUserId);
+        newTask.setAssigneeName(toUserName);
+        newTask.setStatus(FlwEnums.TaskStatus.PENDING.getCode());
+        newTask.setArriveTime(now);
+        newTask.setDeadline(task.getDeadline());
+        newTask.setUrgeCount(0);
+        taskRepository.save(newTask);
+
+        Map<String, Object> data = new HashMap<>();
+        data.put("fromNodeId", task.getNodeId());
+        data.put("fromNodeName", fromLabel);
+        data.put("fromUserId", task.getAssigneeId());
+        data.put("fromUserName", task.getAssigneeName());
+        data.put("toUserId", toUserId);
+        data.put("toUserName", toUserName);
+        data.put("taskId", newTask.getId());
+        if (reason != null && !reason.isEmpty()) {
+            data.put("opinion", reason);
+        }
+        eventPublisher.publishEvent(FlowEvent.of(FlowEvent.Type.TRANSFERRED,
+                instance.getId(), newTask.getId(), data));
+    }
+
+    /** 待办任务守卫：存在、本校、本人办理、仍待办 */
+    private FlwTask requirePendingTask(Long schId, Long taskId, Integer operatorId) {
+        FlwTask task = taskRepository.findById(taskId)
+                .orElseThrow(() -> new BizException(ErrorCode.PARAM_ERROR, "任务不存在：" + taskId));
+        if (!task.getSchId().equals(schId)) {
+            throw new BizException(ErrorCode.FORBIDDEN, "任务不属于该学校");
+        }
+        if (!task.getAssigneeId().equals(operatorId)) {
+            throw new BizException(ErrorCode.FORBIDDEN, "仅任务办理人本人可操作");
+        }
+        if (task.getStatus() != FlwEnums.TaskStatus.PENDING.getCode()) {
+            throw new BizException(ErrorCode.PARAM_ERROR, "仅待办任务可操作");
+        }
+        return task;
+    }
+
     /** 手工催办（提交人/管理员）：urge_count+1 + URGE 事件（UserMsg 通道） */
     @Transactional
     public void urge(Long schId, Long taskId, int maxTimes) {

src/main/java/com/yunhai/flowcenter/service/OapiFlowService.java

@@ -15,7 +15,7 @@ import com.yunhai.flowcenter.repository.FlwTaskRepository;
 import com.yunhai.platform.apistd.BizException;
 import com.yunhai.platform.utils.exception.ErrorCode;
 import com.yunhai.platform.utils.model.BoaUser;
-import com.yunhai.platform.openapi.client.OpenApiUserClient;
+import com.yunhai.platform.openapi.base.OpenApiUserClient;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;

src/main/resources/application.yml

@@ -66,12 +66,15 @@ yh:
       "100005": "2c7885de594742cc840b8762910b2d2e"
       "100617": "2a3b4c5d6e7f8091a2b3c4d5e6f70819"
   open:
-    enabled: true
+    # 身份密钥唯一来源 = yh.app-auth（本文件 app-auth 段），open.* 副本已删；
     # 本地全链测试：指向 local-debug 的 UserBase；生产改回 base.yunhaixingtong.com
     base-host: http://localhost:8060
     base-path: /userbase
-    app-key: 100019
-    app-secret: "flow-center-dev-secret-100019"
+    # 服务目录（子应用配置优化方案 §4.2）：usermsg 未部署时无需配置（enabled=false 即不解析）；
+    # 部署后配容器直连完整 URL（如 http://usermsg-service:100xx/usermsg），或走平台级
+    # YH_OPEN_SERVICES_USERMSG 注入。
+    # services:
+    #   usermsg: http://localhost:8080
 
 # ===== 流程中心专属配置 =====
 flow-center:
@@ -97,8 +100,11 @@ flow-center:
     # 挂起/死信告警接收人（本校管理员 userId；本地联调可留空）
     alert-user-ids: ""
   usermsg:
-    # UserMsg 基址（IDHttp 出站自动签名直达 /oapi/msg/**；UserMsg 侧 trusted-apps 须收本应用占位 appKey=100019）
+    # 站内信/待办推送：主路径 = SDK 门面 YschMsgOpenApi（服务目录 yh.open.services.usermsg）；
+    # legacy 回落键 base-url 已删（无默认值）——enabled=true 且两者皆缺时构造期 fail-fast。
+    # 本地 8080 起 UserMsg 后置 true；生产 UserMsg 未部署 → false（显式关闭，消除空转告警）。
     enabled: true
+    # base-url legacy 回落（仅迁移期兜底，正常不用配）：见上方 open.services.usermsg
     base-url: http://localhost:8080
 
 logging:

src/main/resources/sql/20260916_add_flw_task_edge_name.sql

@@ -0,0 +1,9 @@
+-- flw_task 增加 edge_name（多出口节点办理时选中的出边名，可空）
+-- 用途：审批节点有多条出边时，办理人在办理页选一个出口（名称即按钮文案），
+--       所选出口落库在该任务行上，节点放行推进时按它决定走哪条边。
+--       落库而非走事件传参：推进发生在 AFTER_COMMIT 的新事务里且带乐观锁重试，
+--       事件传参不可靠；落列后可重放、可审计，并发办理时以最后办理的任务为准。
+-- 单出口节点恒为 NULL（旧数据零影响）。
+-- 本地/测试 ddl-auto=update 会自动加列；生产执行本脚本。
+ALTER TABLE `flw_task`
+    ADD COLUMN `edge_name` VARCHAR(64) NULL COMMENT '多出口节点所选出口（对应 def 边 name）' AFTER `opinion`;

src/test/java/com/yunhai/flowcenter/callback/CallbackDispatchIT.java

@@ -97,7 +97,8 @@ class CallbackDispatchIT extends FlowTestSupport {
                 new java.util.concurrent.atomic.AtomicInteger();
 
         CountingUserMsgClient() {
-            super(null);
+            // enabled=false：本用例只覆盖回调派发，站内信为哑实现（两个方法均覆写）
+            super(null, null, false, "");
         }
 
         @Override

src/test/java/com/yunhai/flowcenter/engine/DefValidatorTest.java

@@ -34,6 +34,75 @@ class DefValidatorTest {
         DefValidator.validate(parse(json), new HashSet<>(Collections.singletonList("ybb")));
     }
 
+    @Test
+    void multiOutlet_withoutNames_fails() {
+        String json = "{"
+                + "\"code\":\"c1\",\"name\":\"流程\",\"start\":\"start\","
+                + "\"nodes\":["
+                + "{\"id\":\"start\",\"type\":\"START\"},"
+                + "{\"id\":\"n1\",\"type\":\"APPROVAL\",\"name\":\"审批\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"ybb\"}},"
+                + "{\"id\":\"n2\",\"type\":\"APPROVAL\",\"name\":\"复核\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"ybb\"}},"
+                + "{\"id\":\"end\",\"type\":\"END\"}],"
+                + "\"edges\":[{\"from\":\"start\",\"to\":\"n1\"},"
+                + "{\"from\":\"n1\",\"to\":\"n2\"},{\"from\":\"n1\",\"to\":\"end\"},"
+                + "{\"from\":\"n2\",\"to\":\"end\"}]}";
+        BizException e = assertThrows(BizException.class,
+                () -> DefValidator.validate(parse(json), new HashSet<>(Collections.singletonList("ybb"))));
+        assertTrue(e.getMessage().contains("出口必须命名"));
+    }
+
+    @Test
+    void multiOutlet_duplicateNames_fails() {
+        String json = "{"
+                + "\"code\":\"c1\",\"name\":\"流程\",\"start\":\"start\","
+                + "\"nodes\":["
+                + "{\"id\":\"start\",\"type\":\"START\"},"
+                + "{\"id\":\"n1\",\"type\":\"APPROVAL\",\"name\":\"审批\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"ybb\"}},"
+                + "{\"id\":\"end\",\"type\":\"END\"}],"
+                + "\"edges\":[{\"from\":\"start\",\"to\":\"n1\"},"
+                + "{\"from\":\"n1\",\"to\":\"end\",\"name\":\"通过\"},"
+                + "{\"from\":\"n1\",\"to\":\"end\",\"name\":\"通过\"}]}";
+        BizException e = assertThrows(BizException.class,
+                () -> DefValidator.validate(parse(json), new HashSet<>(Collections.singletonList("ybb"))));
+        assertTrue(e.getMessage().contains("出口名称重复"));
+    }
+
+    @Test
+    void multiOutlet_namedUnique_passes() {
+        String json = "{"
+                + "\"code\":\"c1\",\"name\":\"流程\",\"start\":\"start\","
+                + "\"nodes\":["
+                + "{\"id\":\"start\",\"type\":\"START\"},"
+                + "{\"id\":\"n1\",\"type\":\"APPROVAL\",\"name\":\"审批\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"ybb\"}},"
+                + "{\"id\":\"end\",\"type\":\"END\"}],"
+                + "\"edges\":[{\"from\":\"start\",\"to\":\"n1\"},"
+                + "{\"from\":\"n1\",\"to\":\"end\",\"name\":\"通过\"},"
+                + "{\"from\":\"n1\",\"to\":\"end\",\"name\":\"驳回结束\"}]}";
+        DefValidator.validate(parse(json), new HashSet<>(Collections.singletonList("ybb")));
+    }
+
+    @Test
+    void multiOutlet_crossBranchTarget_fails() {
+        // n1 在并行分支内，出口指向主线 end —— 跨分支连线一期拒绝
+        String json = "{"
+                + "\"code\":\"c1\",\"name\":\"流程\",\"start\":\"start\","
+                + "\"nodes\":["
+                + "{\"id\":\"start\",\"type\":\"START\"},"
+                + "{\"id\":\"split1\",\"type\":\"PARALLEL_SPLIT\"},"
+                + "{\"id\":\"n1\",\"type\":\"APPROVAL\",\"name\":\"分支审批\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"ybb\"}},"
+                + "{\"id\":\"join1\",\"type\":\"PARALLEL_JOIN\",\"waitFor\":\"ALL\"},"
+                + "{\"id\":\"end\",\"type\":\"END\"}],"
+                + "\"edges\":[{\"from\":\"start\",\"to\":\"split1\"},"
+                + "{\"from\":\"split1\",\"to\":\"n1\"},"
+                + "{\"from\":\"split1\",\"to\":\"end\",\"name\":\"直通\"},"
+                + "{\"from\":\"n1\",\"to\":\"end\",\"name\":\"分支出口\"},"
+                + "{\"from\":\"n1\",\"to\":\"join1\",\"name\":\"到汇聚\"},"
+                + "{\"from\":\"join1\",\"to\":\"end\"}]}";
+        BizException e = assertThrows(BizException.class,
+                () -> DefValidator.validate(parse(json), new HashSet<>(Collections.singletonList("ybb"))));
+        assertTrue(e.getMessage().contains("跨分支连线"));
+    }
+
     @Test
     void missingEnd_fails() {
         String json = "{"

src/test/java/com/yunhai/flowcenter/engine/FlowEngineIT.java

@@ -243,6 +243,131 @@ class FlowEngineIT extends FlowTestSupport {
         assertEquals(2, taskRepository.findByInstanceIdOrderByIdAsc(outcome.getInstanceId()).size());
     }
 
+    @Test
+    void multiOutlet_approveWithChosenEdge_routesToTarget() {
+        mapDept("km", 101, "甲");
+        mapDept("kf", 102, "乙");
+        FlwDef def = saveAndPublishDef("t10", "多出口", multiOutletDef("km", "kf"));
+        FlowInstanceService.ApplyOutcome outcome = apply(def.getFlowGuid(), "biz-10", 201, "张三");
+        Long instanceId = outcome.getInstanceId();
+        FlwTask task = taskRepository.findByInstanceIdAndStatus(instanceId, 0).get(0);
+        // 选"通过"出口 → 直达 END 完成
+        taskService.handle(SCH, task.getId(), true, "ok", 101, "通过");
+        assertEquals(FlwEnums.InstanceStatus.COMPLETED.getCode(),
+                instanceRepository.findById(instanceId).get().getStatus());
+        assertEquals("通过", taskRepository.findById(task.getId()).get().getEdgeName());
+    }
+
+    @Test
+    void multiOutlet_chooseOtherEdge_routesToSecondNode() throws Exception {
+        mapDept("km", 101, "甲");
+        mapDept("kf", 102, "乙");
+        FlwDef def = saveAndPublishDef("t11", "多出口转向", multiOutletDef("km", "kf"));
+        FlowInstanceService.ApplyOutcome outcome = apply(def.getFlowGuid(), "biz-11", 201, "张三");
+        Long instanceId = outcome.getInstanceId();
+        FlwTask task = taskRepository.findByInstanceIdAndStatus(instanceId, 0).get(0);
+        // 选"转乙科"出口 → 到 n2 建新待办
+        taskService.handle(SCH, task.getId(), true, "转给乙科", 101, "转乙科");
+        assertEquals(FlwEnums.InstanceStatus.APPROVING.getCode(),
+                instanceRepository.findById(instanceId).get().getStatus());
+        List<FlwTask> pending = taskRepository.findByInstanceIdAndStatus(instanceId, 0);
+        assertEquals(1, pending.size());
+        assertEquals("n2", pending.get(0).getNodeId());
+        assertEquals(102, pending.get(0).getAssigneeId());
+        // 乙科通过 → 完成
+        taskService.handle(SCH, pending.get(0).getId(), true, "ok", 102);
+        assertEquals(FlwEnums.InstanceStatus.COMPLETED.getCode(),
+                instanceRepository.findById(instanceId).get().getStatus());
+    }
+
+    @Test
+    void multiOutlet_multiOutletNode_requiresEdgeName() {
+        mapDept("km", 101, "甲");
+        mapDept("kf", 102, "乙");
+        FlwDef def = saveAndPublishDef("t12", "多出口必选", multiOutletDef("km", "kf"));
+        FlowInstanceService.ApplyOutcome outcome = apply(def.getFlowGuid(), "biz-12", 201, "张三");
+        FlwTask task = taskRepository.findByInstanceIdAndStatus(outcome.getInstanceId(), 0).get(0);
+        assertThrows(BizException.class,
+                () -> taskService.handle(SCH, task.getId(), true, "ok", 101, null));
+        assertThrows(BizException.class,
+                () -> taskService.handle(SCH, task.getId(), true, "ok", 101, "不存在的出口"));
+    }
+
+    @Test
+    void anyCountersign_firstApprove_invalidatesSiblings_thenAdvances() {
+        mapDept("ky", 101, "甲");
+        mapDept("ky", 102, "乙");
+        FlwDef def = saveAndPublishDef("t13", "或签", anyCountersignDef("ky"));
+        FlowInstanceService.ApplyOutcome outcome = apply(def.getFlowGuid(), "biz-13", 201, "张三");
+        Long instanceId = outcome.getInstanceId();
+        List<FlwTask> pending = taskRepository.findByInstanceIdAndStatus(instanceId, 0);
+        assertEquals(2, pending.size());
+        // 或签：任一人同意即放行，兄弟待办失效（修复前行为=卡到全员办完）
+        taskService.handle(SCH, pending.get(0).getId(), true, "我先批", 101);
+        FlwInstance instance = instanceRepository.findById(instanceId).get();
+        assertEquals(FlwEnums.InstanceStatus.COMPLETED.getCode(), instance.getStatus());
+        List<FlwTask> all = taskRepository.findByInstanceIdOrderByIdAsc(instanceId);
+        assertEquals(FlwEnums.TaskStatus.APPROVED.getCode(), all.get(0).getStatus());
+        assertEquals(FlwEnums.TaskStatus.INVALIDATED.getCode(), all.get(1).getStatus());
+    }
+
+    @Test
+    void returnBack_fromTailNode_backToHead_thenReTraverseParallel_noUkViolation() {
+        mapDept("km", 103, "主");
+        mapDept("ka", 101, "甲");
+        mapDept("kb", 102, "乙");
+        FlwDef def = saveAndPublishDef("t14", "退回重入", mainlineParallelTailDef("km", "km"));
+        FlowInstanceService.ApplyOutcome outcome = apply(def.getFlowGuid(), "biz-14", 201, "张三");
+        Long instanceId = outcome.getInstanceId();
+        // 顺序推进：n1 → 并行双分支 → join → n3（在出口复核节点）
+        taskService.handle(SCH, tasksOf(instanceId, 103).get(0).getId(), true, "ok", 103);
+        taskService.handle(SCH, tasksOf(instanceId, 101).get(0).getId(), true, "ok", 101);
+        taskService.handle(SCH, tasksOf(instanceId, 102).get(0).getId(), true, "ok", 102);
+        FlwTask tail = tasksOf(instanceId, 103).get(0);
+        assertEquals("n3", tail.getNodeId());
+        // 退回至入口（缺省主线最近已办=n1；并行内节点被过滤，不会命中 ta/tb）
+        taskService.returnBack(SCH, tail.getId(), null, "重新审一遍", 103);
+        FlwInstance returned = instanceRepository.findById(instanceId).get();
+        assertEquals("n1", returned.getCurrentNodes());
+        assertEquals(FlwEnums.InstanceStatus.APPROVING.getCode(), returned.getStatus());
+        // 重入并行段：split 幂等 upsert，不撞 uk(instance,branchKey)
+        taskService.handle(SCH, tasksOf(instanceId, 103).get(0).getId(), true, "再入口", 103);
+        taskService.handle(SCH, tasksOf(instanceId, 101).get(0).getId(), true, "ok", 101);
+        taskService.handle(SCH, tasksOf(instanceId, 102).get(0).getId(), true, "ok", 102);
+        FlwTask n3Again = tasksOf(instanceId, 103).get(0);
+        assertEquals("n3", n3Again.getNodeId());
+        taskService.handle(SCH, n3Again.getId(), true, "复核通过", 103);
+        assertEquals(FlwEnums.InstanceStatus.COMPLETED.getCode(),
+                instanceRepository.findById(instanceId).get().getStatus());
+        // 轨迹含 RETURNED 行
+        assertEquals(1, allTasks(instanceId).stream()
+                .filter(t -> FlwEnums.TaskStatus.RETURNED.getCode() == t.getStatus()).count());
+    }
+
+    @Test
+    void returnBack_noMainlineTarget_throws_andTransfer_reassigns() {
+        mapDept("km", 101, "甲");
+        FlwDef def = saveAndPublishDef("t15", "退回目标", linearDef("km", "首审"));
+        FlowInstanceService.ApplyOutcome outcome = apply(def.getFlowGuid(), "biz-15", 201, "张三");
+        Long instanceId = outcome.getInstanceId();
+        FlwTask task = taskRepository.findByInstanceIdAndStatus(instanceId, 0).get(0);
+        // 首节点无上游已办：缺省退回应明确报错
+        assertThrows(BizException.class, () ->
+                taskService.returnBack(SCH, task.getId(), null, "试试", 101));
+        // 移交：当前任务置 TRANSFERRED，同节点给新办理人建待办
+        taskService.transfer(SCH, task.getId(), 202, "人不在岗", 101);
+        List<FlwTask> handled = allTasks(instanceId);
+        assertEquals(2, handled.size(), "移交后应产生新待办行");
+        assertEquals(FlwEnums.TaskStatus.TRANSFERRED.getCode(), handled.get(0).getStatus());
+        FlwTask reassigned = taskRepository.findByInstanceIdAndStatus(instanceId, 0).get(0);
+        assertEquals(202, reassigned.getAssigneeId());
+        assertEquals(101, handled.get(0).getAssigneeId()); // 原办理人留在轨迹
+        // 新办理人通过 → 完成；已退回/移交后提交人不能撤回
+        taskService.handle(SCH, reassigned.getId(), true, "接手批准", 202);
+        assertEquals(FlwEnums.InstanceStatus.COMPLETED.getCode(),
+                instanceRepository.findById(instanceId).get().getStatus());
+    }
+
     private List<FlwBranch> branchRows(Long instanceId) {
         return branchRepository.findByInstanceId(instanceId);
     }

src/test/java/com/yunhai/flowcenter/service/FlowDiagramServiceTest.java

@@ -17,7 +17,7 @@ import com.yunhai.flowcenter.repository.FlwDefRepository;
 import com.yunhai.flowcenter.repository.FlwInstanceRepository;
 import com.yunhai.flowcenter.repository.FlwTaskRepository;
 import com.yunhai.platform.apistd.BizException;
-import com.yunhai.platform.openapi.client.OpenApiUserClient;
+import com.yunhai.platform.openapi.base.OpenApiUserClient;
 import com.yunhai.platform.utils.exception.ErrorCode;
 import com.yunhai.platform.utils.model.BoaUser;
 import org.junit.jupiter.api.BeforeEach;
@@ -102,7 +102,9 @@ class FlowDiagramServiceTest {
         FlowEngine engine = new FlowEngine(new ObjectMapper(),
                 taskRepository, mock(FlwBranchRepository.class), mock(AssigneeResolver.class),
                 mock(ApplicationEventPublisher.class));
-        service = new FlowDiagramService(defRepository, mapRepository, engine, userClient);
+        service = new FlowDiagramService(defRepository, mapRepository,
+                mock(com.yunhai.flowcenter.repository.FlwInstanceRepository.class),
+                taskRepository, engine, userClient);
     }
 
     private FlwDef def(String json) {

src/test/java/com/yunhai/flowcenter/service/FlowMapAdminServiceGroupImportTest.java

@@ -2,8 +2,8 @@ package com.yunhai.flowcenter.service;
 
 import com.yunhai.flowcenter.entity.FlwAssigneeMap;
 import com.yunhai.flowcenter.repository.FlwAssigneeMapRepository;
-import com.yunhai.platform.openapi.client.OpenApiGroupClient;
-import com.yunhai.platform.openapi.client.OpenApiUserClient;
+import com.yunhai.platform.openapi.base.OpenApiGroupClient;
+import com.yunhai.platform.openapi.base.OpenApiUserClient;
 import com.yunhai.platform.utils.model.BoaGroup;
 import com.yunhai.platform.utils.model.BoaUser;
 import org.junit.jupiter.api.BeforeEach;

src/test/java/com/yunhai/flowcenter/stub/StubUserClient.java

@@ -1,11 +1,11 @@
 package com.yunhai.flowcenter.stub;
 
-import com.yunhai.platform.openapi.client.OpenApiUserClient;
-import com.yunhai.platform.openapi.model.SysUserGroupDeleteItem;
-import com.yunhai.platform.openapi.model.SysUserGroupStateRequest;
-import com.yunhai.platform.openapi.model.SysUserMoveRequest;
-import com.yunhai.platform.openapi.model.SysUserRequest;
-import com.yunhai.platform.openapi.model.SysUserTransferSchoolRequest;
+import com.yunhai.platform.openapi.base.OpenApiUserClient;
+import com.yunhai.platform.openapi.base.model.SysUserGroupDeleteItem;
+import com.yunhai.platform.openapi.base.model.SysUserGroupStateRequest;
+import com.yunhai.platform.openapi.base.model.SysUserMoveRequest;
+import com.yunhai.platform.openapi.base.model.SysUserRequest;
+import com.yunhai.platform.openapi.base.model.SysUserTransferSchoolRequest;
 import com.yunhai.platform.utils.model.BoaGroup;
 import com.yunhai.platform.utils.model.BoaModule;
 import com.yunhai.platform.utils.model.BoaRoleInfo;

src/test/java/com/yunhai/flowcenter/support/FlowTestSupport.java

@@ -103,4 +103,55 @@ public abstract class FlowTestSupport {
     private static String codeOf() {
         return "tc_" + UUID.randomUUID().toString().replace("-", "").substring(0, 8);
     }
+
+    /** 多出口流程：START → n1(deptA，出口"转乙科"→n2 / "通过"→end) → end；n2(deptB) → end */
+    protected String multiOutletDef(String deptA, String deptB) {
+        return "{"
+                + "\"code\":\"" + codeOf() + "\",\"name\":\"多出口测试流程\",\"start\":\"start\","
+                + "\"nodes\":["
+                + "{\"id\":\"start\",\"type\":\"START\",\"name\":\"开始\"},"
+                + "{\"id\":\"n1\",\"type\":\"APPROVAL\",\"name\":\"入口审核\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"" + deptA + "\"}},"
+                + "{\"id\":\"n2\",\"type\":\"APPROVAL\",\"name\":\"复核\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"" + deptB + "\"}},"
+                + "{\"id\":\"end\",\"type\":\"END\"}"
+                + "],"
+                + "\"edges\":[{\"from\":\"start\",\"to\":\"n1\"},"
+                + "{\"from\":\"n1\",\"to\":\"n2\",\"name\":\"转乙科\"},"
+                + "{\"from\":\"n1\",\"to\":\"end\",\"name\":\"通过\"},"
+                + "{\"from\":\"n2\",\"to\":\"end\"}],"
+                + "\"settings\":{\"rejectPolicy\":\"END_REJECTED\"}}";
+    }
+
+    /** 或签流程：START → n1(deptKey, ANY 或签) → END */
+    protected String anyCountersignDef(String deptKey) {
+        return "{"
+                + "\"code\":\"" + codeOf() + "\",\"name\":\"夡签测试流程\",\"start\":\"start\","
+                + "\"nodes\":["
+                + "{\"id\":\"start\",\"type\":\"START\",\"name\":\"开始\"},"
+                + "{\"id\":\"n1\",\"type\":\"APPROVAL\",\"name\":\"任一人审批\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"" + deptKey + "\"},\"countersign\":\"ANY\"},"
+                + "{\"id\":\"end\",\"type\":\"END\"}"
+                + "],"
+                + "\"edges\":[{\"from\":\"start\",\"to\":\"n1\"},{\"from\":\"n1\",\"to\":\"end\"}],"
+                + "\"settings\":{\"rejectPolicy\":\"END_REJECTED\"}}";
+    }
+
+    /** 主线带并行段：START → n1(deptA) → split → {ta(ka), tb(kb)} → join → n3(deptA) → END（退回重入用） */
+    protected String mainlineParallelTailDef(String deptA, String deptMain) {
+        return "{"
+                + "\"code\":\"" + codeOf() + "\",\"name\":\"主线并行尾验流程\",\"start\":\"start\","
+                + "\"nodes\":["
+                + "{\"id\":\"start\",\"type\":\"START\",\"name\":\"开始\"},"
+                + "{\"id\":\"n1\",\"type\":\"APPROVAL\",\"name\":\"入口\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"" + deptMain + "\"}},"
+                + "{\"id\":\"split1\",\"type\":\"PARALLEL_SPLIT\"},"
+                + "{\"id\":\"ta\",\"type\":\"APPROVAL\",\"name\":\"甲科审核\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"ka\"}},"
+                + "{\"id\":\"tb\",\"type\":\"APPROVAL\",\"name\":\"乙科审核\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"kb\"}},"
+                + "{\"id\":\"join1\",\"type\":\"PARALLEL_JOIN\",\"waitFor\":\"ALL\"},"
+                + "{\"id\":\"n3\",\"type\":\"APPROVAL\",\"name\":\"出口复核\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"" + deptA + "\"}},"
+                + "{\"id\":\"end\",\"type\":\"END\"}"
+                + "],"
+                + "\"edges\":[{\"from\":\"start\",\"to\":\"n1\"},{\"from\":\"n1\",\"to\":\"split1\"},"
+                + "{\"from\":\"split1\",\"to\":\"ta\"},{\"from\":\"split1\",\"to\":\"tb\"},"
+                + "{\"from\":\"ta\",\"to\":\"join1\"},{\"from\":\"tb\",\"to\":\"join1\"},"
+                + "{\"from\":\"join1\",\"to\":\"n3\"},{\"from\":\"n3\",\"to\":\"end\"}],"
+                + "\"settings\":{\"rejectPolicy\":\"END_REJECTED\"}}";
+    }
 }