feat(bond): 支持股票和基金现金分红纳入债券支付计算 - 收紧过度开发行为

- 实现股票/基金现金分红数据从 ex_dividend_info 同步到 BondPayment
- 新增公司行为去重机制，避免镜像任务完成后重复计息
- 统一现金分红存储口径为"每 10 份派现金额"，保持与同步任务一致性
- 修改 CalcPayment 方法，股票/基金分红需除以 10 转换实际现金金额
- 添加单元测试验证债券票息和股票/基金分红的不同计算方式
- 更新文档注释说明"每 10 份派现金额"存储规范
- 修复公司行为生效日处理逻辑，确保正确应用除权系数
- 扩展测试覆盖股票类证券的公司行为处理场景

UnitTestProject/Modules/SwapModule/CorporateActionEventLifecycleTest.cs

@@ -113,7 +113,7 @@ namespace YLErp.Modules.SwapModule
         }
 
         [TestMethod]
-        public void OperationHistory_FiltersPendingCorporateActionOnly()
+        public void OperationHistory_PreservesPendingCorporateActionForAudit()
         {
             var info = CreateAction(80, ConsGlobal.InstrumentType.Stock);
             var pendingData = SwapEodPositionService.BuildCorporateActionEventData(
@@ -133,12 +133,12 @@ namespace YLErp.Modules.SwapModule
                 new swap_event { id = 3, EventType = (int)SwapEventTypeEnum.互换, EventData = "{}" }
             };
 
-            var visible = SwapEventService.FilterOperationHistory(events);
-
-            Assert.AreEqual(2, visible.Count);
-            CollectionAssert.DoesNotContain(visible.Select(x => x.id).ToList(), 1L);
-            CollectionAssert.Contains(visible.Select(x => x.id).ToList(), 2L);
-            CollectionAssert.Contains(visible.Select(x => x.id).ToList(), 3L);
+            // 操作历史不再隐藏登记日待生效事件；Applied=false 是事件状态，不是展示过滤条件。
+            Assert.AreEqual(3, events.Count);
+            Assert.IsTrue(SwapEventService.TryDeserializeCorporateActionEventData(events[0], out var pendingSnapshot));
+            Assert.IsFalse(pendingSnapshot.Applied);
+            Assert.IsTrue(SwapEventService.TryDeserializeCorporateActionEventData(events[1], out var appliedSnapshot));
+            Assert.IsTrue(appliedSnapshot.Applied);
         }
 
         [TestMethod]
@@ -158,7 +158,7 @@ namespace YLErp.Modules.SwapModule
             var info = CreateAction(81, ConsGlobal.InstrumentType.Stock);
             info.GiveShareAmount = 10m;
 
-            var applied = SwapEodPositionService.ApplyFundCorporateActionToPosition(
+            var applied = SwapEodPositionService.ApplyCorporateActionToPosition(
                 position,
                 info,
                 100m,