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/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 "{"