fix: 归并异步工具状态卡片

- 统一异步阶段事件的稳定任务标识

- 保留原始工具调用 ID 供事件关联

- 将提交、轮询和结果状态更新到同一审批卡片

easyflow-modules/easyflow-module-agent/src/test/java/tech/easyflow/agent/runtime/AgentRunServiceDraftAndHitlTest.java

@@ -575,6 +575,56 @@ public class AgentRunServiceDraftAndHitlTest {
         Assert.assertEquals(1, recorder.recordCount);
     }
 
+    /**
+     * 验证异步轮询调用会暴露原始调用 ID，并从入参解析稳定任务 ID。
+     *
+     * @throws Exception 反射调用失败时抛出
+     */
+    @Test
+    public void buildToolEventPayloadShouldExposeStableAsyncTaskIdentity() throws Exception {
+        AgentRunService service = new AgentRunService();
+        AgentRuntimeEvent event = AgentRuntimeEvent.of(AgentRuntimeEventType.TOOL_CALL);
+        event.setToolCallId("observe-call-2");
+        event.getPayload().put("input", Map.of("taskId", "task-1"));
+        event.getPayload().put("phase", "PRE_ACTING");
+        event.getMetadata().put("asyncTool", true);
+        event.getMetadata().put("asyncToolName", "document_generation");
+        event.getMetadata().put("asyncToolPhase", "observe");
+
+        Map<String, Object> payload = invoke(service, "buildToolEventPayload",
+                new Class<?>[]{AgentRuntimeEvent.class}, event);
+
+        Assert.assertEquals("observe-call-2", payload.get("sourceToolCallId"));
+        Assert.assertEquals("task-1", payload.get("taskId"));
+        Assert.assertEquals("task-1", payload.get("toolCallId"));
+        Assert.assertEquals("observe", payload.get("phase"));
+    }
+
+    /**
+     * 验证异步轮询结果会从结果元数据恢复稳定任务 ID。
+     *
+     * @throws Exception 反射调用失败时抛出
+     */
+    @Test
+    public void buildToolEventPayloadShouldResolveAsyncTaskIdentityFromResultMetadata() throws Exception {
+        AgentRunService service = new AgentRunService();
+        AgentRuntimeEvent event = AgentRuntimeEvent.of(AgentRuntimeEventType.TOOL_RESULT);
+        event.setToolCallId("observe-call-2");
+        event.getPayload().put("phase", "POST_ACTING");
+        event.getMetadata().put("asyncTool", true);
+        event.getMetadata().put("asyncToolName", "document_generation");
+        event.getMetadata().put("asyncToolPhase", "observe");
+        event.getMetadata().put("taskId", "task-1");
+
+        Map<String, Object> payload = invoke(service, "buildToolEventPayload",
+                new Class<?>[]{AgentRuntimeEvent.class}, event);
+
+        Assert.assertEquals("observe-call-2", payload.get("sourceToolCallId"));
+        Assert.assertEquals("task-1", payload.get("taskId"));
+        Assert.assertEquals("task-1", payload.get("toolCallId"));
+        Assert.assertEquals("observe", payload.get("phase"));
+    }
+
     /**
      * 验证草稿工具审批只注册内存恢复令牌，不写 HITL pending 表。
      *