fix(trace): 科室视图抄送行补遮蔽——ccTraceRow 补 fillCcScope 取 node.receivers 落 assigneeType/deptKey/deptName（NOTIFY 用 receivers 而非 assignee，直接复用 fillAssigneeScope 会空填），applyAssigneeScope 抽公共落值段；FlowEngineIT 增 ccTraceRows_carryDeptScope_forDeptView + 原 notify 用例补 USERS 断言；FlowTestSupport 增 notifyDeptDef。mvn test 209 全绿

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

@@ -507,6 +507,10 @@ class FlowEngineIT extends FlowTestSupport {
             kinds.add((String) row.get("kind"));
         }
         assertEquals(java.util.Arrays.asList("SUBMIT", "CC", "CC", "APPROVE"), kinds);
+        // 科室口径富化（2026-10-12）：抄送行取节点的 receivers（不是 assignee，见 fillCcScope）——
+        // 否则 dept 档下抄送行拿不到 assigneeType，前端只能回落接收人真实姓名（原先的泄露点）
+        assertEquals("USERS", trace.get(1).get("assigneeType"));
+        assertEquals("USERS", trace.get(2).get("assigneeType"));
         // 抄送我的：301 视角一行，回填办件信息
         com.yunhai.platform.utils.model.BasePageResult<com.yunhai.flowcenter.model.FlowModels.CcItem>
                 ccPage = queryService.pageCc(SCH, 301, null, 1, 10);
@@ -515,6 +519,27 @@ class FlowEngineIT extends FlowTestSupport {
         assertEquals("张三的测试办件", ccPage.getContent().get(0).getBizTitle());
     }
 
+    /**
+     * 抄送轨迹行的科室口径富化（2026-10-12）：NOTIFY 节点的接收人存在 {@code receivers} 字段，
+     * 与审批节点的 {@code assignee} 不同名——富化若只认 assignee 就恒为空，dept 档下抄送行
+     * 拿不到科室名/类型，前端只能回落接收人真实姓名。本例锁死"科室抄送 → 科室名"这一路。
+     */
+    @Test
+    void ccTraceRows_carryDeptScope_forDeptView() {
+        mapDept("km", 101, "甲");
+        FlwDef def = saveAndPublishDef("t16b", "抄送科室", notifyDeptDef("km"));
+        Long instanceId = apply(def.getFlowGuid(), "biz-16b", 201, "张三").getInstanceId();
+
+        java.util.List<java.util.Map<String, Object>> trace =
+                queryService.detail(SCH, instanceId, null).getTrace();
+        java.util.Map<String, Object> cc = trace.stream()
+                .filter(r -> "CC".equals(r.get("kind")))
+                .findFirst().orElseThrow(() -> new AssertionError("轨迹缺 kind=CC 行"));
+        assertEquals("DEPT_KEY", cc.get("assigneeType"));
+        assertEquals(dk("km"), cc.get("deptKey"));
+        assertEquals("km科", cc.get("deptName"));
+    }
+
     /** NOTIFY 在并行分支内：瞬时到达 JOIN 不占等待（审批支到齐即放行），落库与轨迹同主线口径 */
     @Test
     void notify_inParallelBranch_reachesJoin_withoutBlocking() {

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

@@ -167,6 +167,21 @@ public abstract class FlowTestSupport {
                 + "\"settings\":{\"rejectPolicy\":\"END_REJECTED\"}}";
     }
 
+    /** 抄送主线流程（科室口径）：START → cc(DEPT_KEY deptA) → n1(deptA) → END */
+    protected String notifyDeptDef(String deptA) {
+        return "{"
+                + "\"code\":\"" + codeOf() + "\",\"name\":\"抄送科室测试流程\",\"start\":\"start\","
+                + "\"nodes\":["
+                + "{\"id\":\"start\",\"type\":\"START\",\"name\":\"开始\"},"
+                + "{\"id\":\"cc1\",\"type\":\"NOTIFY\",\"name\":\"抄送科室\",\"receivers\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"" + dk(deptA) + "\"}},"
+                + "{\"id\":\"n1\",\"type\":\"APPROVAL\",\"name\":\"审核\",\"assignee\":{\"type\":\"DEPT_KEY\",\"deptKey\":\"" + dk(deptA) + "\"}},"
+                + "{\"id\":\"end\",\"type\":\"END\"}"
+                + "],"
+                + "\"edges\":[{\"from\":\"start\",\"to\":\"cc1\"},{\"from\":\"cc1\",\"to\":\"n1\"},"
+                + "{\"from\":\"n1\",\"to\":\"end\"}],"
+                + "\"settings\":{\"rejectPolicy\":\"END_REJECTED\"}}";
+    }
+
     /** 抄送并行流程：START → split → {n1(deptA), cc(USERS [301])} → join → END（抄送支瞬时到达汇聚） */
     protected String notifyParallelDef(String deptA) {
         return "{"