fix: 加固日历日期与动态错误合同（09-05-error-explainability-payment-readiness，09-08-reimbursement-payment-closeout）

.trellis/spec/hyb-oa/backend-fastify-prisma.md

@@ -18,6 +18,16 @@ QA script patterns over new abstractions.
 
 ## Common Checks
 
+### Calendar Date Inputs
+
+- For reimbursement, payment-batch, travel-request and asset date-only input schemas,
+  combine the YYYY-MM-DD shape with isValidDateOnlyString. Reject calendar overflow
+  before persistence; a regex alone accepts February 30 and JavaScript normalizes it.
+- Keep optional and nullable wrappers outside the string validator. Validate leap-day,
+  month-end, invalid month and empty/null boundaries without changing stored historical dates.
+- parseDateOnlyString retains its legacy conversion contract for unaudited consumers;
+  it is not validation. Do not claim the shared parser or other domains are all hardened.
+
 ### Payment Account And Invoice Read Errors
 
 - Payment-account maintenance and invoice-pool read validation use registered

.trellis/spec/hyb-oa/frontend-react-vite-design.md

@@ -23,6 +23,12 @@
 
 ## Source Of Truth
 
+- Reminder cooldown hints render server UTC timestamps in Asia/Shanghai with an
+  explicit Beijing-time label and second precision. Reuse formatDisplayDateTime's
+  opt-in includeSeconds; existing callers retain minute precision. Both registered
+  reason and legacy details paths reject malformed/non-finite timestamps without
+  reflecting arbitrary values. Cover a UTC-to-Beijing cross-year case.
+
 Frontend visual and interaction design uses the installed `frontend-design`
 skill as the primary design authority. `docs/产品设计规则.md` remains a product
 experience and business-boundary fact source, not a visual, brand or aesthetic

.trellis/tasks/09-05-error-explainability-payment-readiness/implement.md

@@ -243,3 +243,18 @@ R1包及其manifest不变；本轮代码已偏离R1，必须重冻R2后交增量
 - 下一项统一待办需求仅以该真实流程的三个交接观察为输入：交给财务组批、交给经理/CEO 复核、交回财务登记付款；每处记录谁交给谁、接收人通过什么现有入口或提醒知道轮到自己、是否需要口头催办。尚未发生的交接不预填结论，不记录真实银行资料。
 - 独立待办仍保留：财务测试账号 403 需要单独解决并补财务身份真实验收（管理员代验不等于该角色验收）；合同只读超时需单独复现归因，不计入通过；“三张单的答复”仅作为用户提醒保留，未明确具体单据和答复内容，不自行推断或代答。
 - Trellis 升级另行审查：逐条核对 workflow.md 与 project-governance.md 删除或弱化的规则及理由，独立检查 hooks 行为变化；不以模型升级为整批删除保障的理由。本次仅记录后续事项，不启动新产品任务、不修改配置或真实资料、不自动提交、部署或归档。
+# 2026-09-16 上线后契约补强
+
+后续日期批次方案：共享date工具新增纯isValidDateOnlyString谓词（严格YYYY-MM-DD、有限UTC日期、回读同日），保持旧parseDateOnlyString行为以免无关服务突然抛500；先接报销/付款/差旅申请/资产四路由的既有Zod日期schema，optional/nullable外层语义不变，失败沿原输入错误合同且写入前拒绝。催办复用前端displayFormat的Asia/Shanghai格式并明确“北京时间”，旧details分支也校验UTC形状/有限性，不回显任意字符串。验证单测正反边界、各域实际入口/解析器、无副作用及前端typecheck/build；采购、合同、考勤等剩余消费者继续单列，不冒称所有日期解析债务清零。不迁移或改生产历史日期，不提交/部署本轮未审代码。
+
+日期批次已本地实施：9文件450/450定向回归通过（日期工具/客户端映射/四域验证/报销统计/金额/草稿分类）。付款导出两项首跑因系统Python缺BIFF8依赖返回409，改用已有隔离Python（xlrd2.0.2/xlwt1.3.0）后整轮通过，没有修改生产依赖或产品导出门禁。命令：`cd server && PAYMENT_ORDER_PYTHON_BIN=<已有隔离Python> npm test -- tests/unit/utils/date.test.js tests/unit/scripts/error-reason-client.test.js tests/unit/routes/assets.validation.test.js tests/unit/routes/travelRequests.test.js tests/unit/routes/reimbursements.create.test.js tests/unit/routes/paymentBatches.reimbursement.test.js tests/unit/routes/reimbursements.stats.test.js tests/unit/routes/reimbursements.amount-guard.test.js tests/unit/routes/reimbursements.draft-classification.test.js`。资产覆盖实际create解析器的4字段无效/闰日/null，不冒充真实DB写入；差旅覆盖PATCH两日期输入前拒绝；报销/付款另有正常日期/清空/无写入反例。催办保留秒且显示北京时间，默认格式消费者仍分钟精度。
+
+消费者盘点：已收口4路由输入schema；invoicePool局部日期函数已有独立严格校验，未重写。contractsRegistry/purchaseRequests/travelOrders/travelReconciliation/weeklyReports/presence/portal、contractRegistryFilters/attendance/employeeStats/feeControl/presenceHistory及export-small-team-observation仍调用旧解析器，需按外部输入与内部派生分类后逐项迁移，不因共享谓词新增就算已修。无生产历史日期扫描/修订；原到期日未改。当前主会话自检不计独立复核，整批新变更待只读内容复核与单独提交/发布批准。
+
+最终增量合并验证：上述9文件再加auth.login、invoicePool.patch、workflow.batch共12文件526/526通过。`cd client && npm run typecheck && npm run build`退出0；Node语法检查、原因码注册229/遗留612/零finding、process baseline、Trellis治理及git diff --check通过。构建有既有Browserslist数据过期与大chunk提示，未升级依赖或修改拆包。当前未执行浏览器/生产登录业务链，不把旧22项记录当新输入重跑。准备calendar-contract-review-20260916-r1独立只读交审，旧R1/R2交付包保持原字节；本轮不提交或部署，生产仍842c61e6。
+
+842c61e6已部署，公网只读验收通过，发布回执见error-explainability-r2-release。用户批准继续后续工作；本轮先处理独立复核F-1/F-2/F-3的本地测试缺口，不改已上线业务逻辑、不重冻旧包、不自动提交或部署。验收：服务端当前VAT必填集合逐字段投影、密码校验实际输出逐规则投影；路由断言missingFields/password兼容键与具体值；严格UTC形状但非有限日期安全回落。票种扩展、时区展示仍需分别核验，测试覆盖不扩称全集已完成。
+
+最终同输入验证：`cd server && npm test -- tests/unit/scripts/error-reason-client.test.js tests/unit/routes/auth.login.test.js tests/unit/routes/invoicePool.patch.test.js tests/unit/routes/workflow.batch.test.js`，4文件323/323通过。新增4项（VAT集合、密码策略、非有限日期、催办精确24小时冷却负载）；两项已有路由用例加强动态键断言。催办409同时核nextAllowedAt、查询时间窗、无历史/通知/任务写入；只用合成actor/存储替身，不是生产登录链。首轮1项失败是新测试把已有“总金额”误写为“价税合计”，已校正测试预期而未修改产品文案；最终整轮通过。存在Node既有punycode弃用警告，无测试失败。
+
+流程baseline、Trellis治理及git diff --check通过。本轮仅测试/文档，无运行时代码或schema变化，未重跑前端build/浏览器，未独立复核、提交、推送或发布。扩展票种buyerName、密码新规则的输入覆盖、时区与共享日历校验仍不是这组测试能全量保证的事项。

.trellis/tasks/09-08-reimbursement-payment-closeout/implement.md

@@ -756,3 +756,12 @@ T0 是新增代码工作的前置；T1 数据库路径获成功证据后推进 T
 - [ ] 功能交付后回到统一待办投影；同期维护原错误豁免截止日队列，不批量归档或延期。
 
 首个实施动作明确为“用空报销合成数据复现发票顺序问题，并核查退回删除事务/材料关系”，不是继续生产清理或让 majianyong 再尝试一次。主工作树在旧基线且有治理差异，执行副本须从最新 origin/main 核验建立，按任务登记分批文件清单与测试命令。
+# 2026-09-16 发布后后续执行
+
+最新已上线候选842c61e69645b2c753b41593686701854e25ea3a，树831557fd8f5c26445bd66eef574332eb8314fe59。R2独立内容审查通过后已按批准提交、推送、重新预检和部署；公网只读/运行身份验收通过，数据库未重启、.env未覆盖。证据归artifacts/qa-layout/error-explainability-r2-release，不能再将下方09-15历史“未提交/未部署”当当前事实。
+
+用户要求继续后续工作，本轮先在09-05补复核低级发现对应的动态错误负载/白名单契约/无效时间反例，只有测试和执行记录修改，线上版本不变，未自动提交或部署。原09-04两文档及统一审批中心三处旧差异保持隔离。
+
+接续批次已增加四域日期输入严格校验及明确北京时间的催办提示，当前变更不再仅测试/记录。最终12文件526/526及前端typecheck/build、原因码和流程治理通过；详细范围与未覆盖消费者见09-05本日记录。交审包calendar-contract-review-20260916-r1待独立内容复核，不沿用上一轮R2通过结论；未提交、未部署，线上仍842c61e6。其余需要真实对象/专项授权的C/E/F不通过修改测试造完成记录。
+
+仍待项：A历史task全量验收映射不以祖先关系替代；B真实通知送达与E自然回单不制造业务；C同源DB+附件+应用恢复仍未实测完成，08-23中固定历史源方案待专项批准，不能将本次部署批准当恢复授权；F密钥来源UNKNOWN保留且不再向用户索取密钥。D共享日期/时区、其他域遗留原因与扩展票种仍按既有期限逐项治理，不统一延期。镜像归档完整性不是恢复演练，当前部署通过不自动关闭上述事项。

client/src/api/errorMessages.ts

@@ -1,4 +1,5 @@
 import { formatInvoiceOcrFieldLabels } from "../lib/invoiceOcr";
+import { formatDisplayDateTime } from "../lib/displayFormat";
 import { resolveErrorReasonMessage, UNKNOWN_VALIDATION_MESSAGE } from "./errorReasons";
 
 function readStringList(value: unknown): string[] {
@@ -307,8 +308,9 @@ export function mapApiErrorMessage(
 
     if (details?.workflow === "remind_too_frequent") {
       const nextAllowedAt = typeof details?.nextAllowedAt === "string" ? details.nextAllowedAt : null;
-      return nextAllowedAt
+      return nextAllowedAt && /^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(?:\.\d+)?Z$/.test(nextAllowedAt)
-        ? `24 小时内已催办过，请在 ${nextAllowedAt.slice(0, 19).replace("T", " ")} 后再试。`
+        && Number.isFinite(new Date(nextAllowedAt).getTime())
+        ? `24 小时内已催办过，请在北京时间 ${formatDisplayDateTime(nextAllowedAt, { includeSeconds: true })} 后再试。`
         : "24 小时内已催办过。";
     }
 

client/src/lib/displayFormat.ts

@@ -17,7 +17,7 @@ export function formatDisplayDate(value: string | null | undefined) {
   }).format(timestamp);
 }
 
-export function formatDisplayDateTime(value: string | null | undefined) {
+export function formatDisplayDateTime(value: string | null | undefined, options: { includeSeconds?: boolean } = {}) {
   if (!value) return "-";
 
   const timestamp = new Date(value).getTime();
@@ -30,6 +30,7 @@ export function formatDisplayDateTime(value: string | null | undefined) {
     day: "numeric",
     hour: "2-digit",
     minute: "2-digit",
+    ...(options.includeSeconds ? { second: "2-digit" as const } : {}),
   }).format(timestamp);
 }
 

server/src/routes/assets.js

@@ -2,7 +2,7 @@ const { z } = require("zod");
 
 const { AppError } = require("../utils/AppError");
 const { buildAuditLogData } = require("../utils/audit");
-const { parseDateOnlyString } = require("../utils/date");
+const { parseDateOnlyString, isValidDateOnlyString } = require("../utils/date");
 const { issueDocumentNumber } = require("../services/documentSequence");
 const { FEATURE_FLAG_KEYS, evaluateFeatureFlag } = require('../services/featureFlags');
 const {
@@ -14,7 +14,7 @@ const { sendData } = require("../utils/reply");
 
 const UUID_SCHEMA = z.string().uuid();
 const BOOLEAN_QUERY_SCHEMA = z.enum(["0", "1", "true", "false"]).optional();
-const DATE_ONLY_SCHEMA = z.string().regex(/^\d{4}-\d{2}-\d{2}$/);
+const DATE_ONLY_SCHEMA = z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" });
 const ASSET_STATUS_VALUES = ["in_stock", "in_use", "under_repair", "retired", "archived"];
 const ASSET_TYPE_VALUES = ["fixed_asset", "electronic_document", "electronic_system", "code_repository", "backup_media"];
 const ASSET_SENSITIVITY_VALUES = ["public_candidate", "internal", "confidential", "strictly_confidential"];

server/src/routes/paymentBatches.js

@@ -12,7 +12,7 @@ const { z } = require("zod");
 const { AppError } = require("../utils/AppError");
 const { sendData } = require("../utils/reply");
 const { buildAuditLogData } = require("../utils/audit");
-const { currentDateString, parseDateOnlyString } = require("../utils/date");
+const { currentDateString, parseDateOnlyString, isValidDateOnlyString } = require("../utils/date");
 const { FEATURE_FLAG_KEYS, evaluateFeatureFlag } = require("../services/featureFlags");
 const { createNotificationsWithRecords } = require("../services/notifications");
 const { NOTIFICATION_TYPES } = require("../constants/notificationTypes");
@@ -70,14 +70,14 @@ const CREATE_SCHEMA = z.object({
   entityType: ENTITY_TYPE_SCHEMA,
   name: z.string().trim().min(1).max(120).optional(),
   entityIds: z.array(UUID_SCHEMA).min(1).max(200),
-  defaultPaymentDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).optional(),
+  defaultPaymentDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" }).optional(),
   defaultPaymentChannel: PAYMENT_CHANNEL_SCHEMA.optional(),
   voucherPrefix: z.string().trim().min(1).max(32).optional(),
 }).strict();
 
 const PATCH_ITEM_SCHEMA = z.object({
   paymentVoucherNoOverride: z.string().trim().max(50).nullable().optional(),
-  paymentDateOverride: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).nullable().optional(),
+  paymentDateOverride: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" }).nullable().optional(),
 }).strict().refine((value) => Object.keys(value).length > 0, { message: "empty_patch" });
 
 const REVIEW_SCHEMA = z.object({

server/src/routes/reimbursements.js

@@ -10,7 +10,7 @@ const { buildAuditLogData } = require("../utils/audit");
 const { sha256Hex } = require("../utils/crypto");
 const { buildAttachmentContentDisposition } = require("../utils/contentDisposition");
 const { signPayload, verifyToken } = require("../utils/signedUrl");
-const { compactDateString, currentDateString, parseDateOnlyString } = require("../utils/date");
+const { compactDateString, currentDateString, parseDateOnlyString, isValidDateOnlyString } = require("../utils/date");
 const { findActiveDelegationForDelegate, listActiveDelegationPrincipals } = require("../utils/delegation");
 const { hasPermission, resolveEntityPermission } = require("../constants/permissions");
 const {
@@ -76,7 +76,7 @@ const {
 const UUID_SCHEMA = z.string().uuid();
 const PAY_BODY_SCHEMA = z.object({
   paymentVoucherNo: z.string().trim().min(1).max(50).optional(),
-  paymentDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).optional(),
+  paymentDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" }).optional(),
   paymentChannel: z.enum(["bank", "alipay", "wechat", "cash", "other"]).optional(),
   paymentNote: z.string().trim().max(200).optional(),
 });
@@ -91,12 +91,12 @@ const REIMBURSEMENT_LIST_QUERY_SCHEMA = z.object({
 });
 
 const REIMBURSEMENT_UPDATE_BODY_SCHEMA = z.object({
-  reimbursementDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).optional(),
+  reimbursementDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" }).optional(),
   description: z.string().trim().max(500).nullable().optional(),
   travelPurpose: z.string().trim().max(200).nullable().optional(),
   travelLocation: z.string().trim().max(200).nullable().optional(),
-  travelStartDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).nullable().optional(),
+  travelStartDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" }).nullable().optional(),
-  travelEndDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).nullable().optional(),
+  travelEndDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" }).nullable().optional(),
 }).superRefine((value, ctx) => {
   if (value.travelStartDate && value.travelEndDate && value.travelStartDate > value.travelEndDate) {
     ctx.addIssue({ code: z.ZodIssueCode.custom, message: "invalid_date_range", path: ["travelEndDate"] });
@@ -151,14 +151,14 @@ function throwMaterialPreviewAppError(error) {
 const REIMBURSEMENT_CREATE_BODY_SCHEMA = z
   .object({
     ownerEmployeeId: z.string().uuid().optional(),
-    reimbursementDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).optional(),
+    reimbursementDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" }).optional(),
     description: z.string().max(500).optional(),
     templateId: z.string().uuid().optional(),
     linkedTravelRequestId: z.string().uuid().optional(),
     travelPurpose: z.string().trim().max(200).optional(),
     travelLocation: z.string().trim().max(200).optional(),
-    travelStartDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).optional(),
+    travelStartDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" }).optional(),
-    travelEndDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).optional(),
+    travelEndDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" }).optional(),
   })
   .strict()
   .superRefine((value, ctx) => {
@@ -181,13 +181,13 @@ const REIMBURSEMENT_CREATE_BODY_SCHEMA = z
 
 const REIMBURSEMENT_ITEM_BODY_SCHEMA = z.object({
   expenseTypeId: z.string().uuid().nullable(),
-  expenseDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/),
+  expenseDate: z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" }),
   amount: z.string().regex(/^\d+(\.\d{1,2})?$/),
   description: z.string().trim().max(500),
   assetPriorApprovalBasis: z.string().trim().max(500).nullable().optional(),
 });
 
-const DATE_ONLY_QUERY_SCHEMA = z.string().regex(/^\d{4}-\d{2}-\d{2}$/);
+const DATE_ONLY_QUERY_SCHEMA = z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" });
 const REIMBURSEMENT_STATS_QUERY_SCHEMA = z.object({
   dateFrom: DATE_ONLY_QUERY_SCHEMA.optional(),
   dateTo: DATE_ONLY_QUERY_SCHEMA.optional(),

server/src/routes/travelRequests.js

@@ -2,7 +2,7 @@ const { z } = require("zod");
 
 const { AppError } = require("../utils/AppError");
 const { buildAuditLogData } = require("../utils/audit");
-const { parseDateOnlyString } = require("../utils/date");
+const { parseDateOnlyString, isValidDateOnlyString } = require("../utils/date");
 const { sendData } = require("../utils/reply");
 const { issueDocumentNumber } = require("../services/documentSequence");
 const { resolveApplicableBudgetPoolByContext } = require("../services/budgetPool");
@@ -28,7 +28,7 @@ const { flushNotificationDispatchTasks } = require("../services/notificationDisp
 const UUID_SCHEMA = z.string().uuid();
 const BOOLEAN_QUERY_SCHEMA = z.enum(["0", "1", "true", "false"]).optional();
 const MONEY_STRING_SCHEMA = z.string().regex(/^\d+(?:\.\d{1,2})?$/);
-const DATE_ONLY_SCHEMA = z.string().regex(/^\d{4}-\d{2}-\d{2}$/);
+const DATE_ONLY_SCHEMA = z.string().regex(/^\d{4}-\d{2}-\d{2}$/).refine(isValidDateOnlyString, { message: "invalid_calendar_date" });
 const DATE_TIME_SCHEMA = z.string().min(1).max(64);
 const TRAVEL_STATUS_SCHEMA = z.enum(["draft", "reviewing", "approved", "rejected"]);
 const TRIP_TYPE_SCHEMA = z.enum(["domestic", "international"]);

server/src/utils/date.js

@@ -17,8 +17,15 @@ function parseDateOnlyString(value) {
   return new Date(`${value}T00:00:00.000Z`);
 }
 
+function isValidDateOnlyString(value) {
+  if (typeof value !== "string" || !/^\d{4}-\d{2}-\d{2}$/.test(value)) return false;
+  const date = parseDateOnlyString(value);
+  return Number.isFinite(date.getTime()) && date.toISOString().slice(0, 10) === value;
+}
+
 module.exports = {
   compactDateString,
   currentDateString,
   parseDateOnlyString,
+  isValidDateOnlyString,
 };

server/tests/unit/routes/assets.validation.test.js

@@ -28,4 +28,13 @@ describe('assets route validation', () => {
       }),
     );
   });
+
+  it.each(['lastVerifiedAt', 'expiresAt', 'activatedAt', 'retiredAt'])('rejects calendar overflow in %s', (field) => {
+    expect(() => assetsRoutes.__testables.parseAssetCreateBodyForTest({ ...validPayload, [field]: '2026-02-30' }))
+      .toThrow();
+    expect(assetsRoutes.__testables.parseAssetCreateBodyForTest({ ...validPayload, [field]: '2024-02-29' })[field])
+      .toBe('2024-02-29');
+    expect(assetsRoutes.__testables.parseAssetCreateBodyForTest({ ...validPayload, [field]: null })[field])
+      .toBeNull();
+  });
 });

server/tests/unit/routes/auth.login.test.js

@@ -229,6 +229,12 @@ describe("auth login route", () => {
         headers: { "x-device-fingerprint": "synthetic-input-validation" } });
       expect(response.statusCode).toBe(400);
       expect(response.json().error.details.reasonCode).toBe(`auth.${reason}`);
+      if (reason === "password_policy_failed") {
+        expect(response.json().error.details.password).toEqual(expect.arrayContaining([
+          "密码必须包含大写字母", "密码必须包含数字",
+        ]));
+        expect(response.json().error.details.password).not.toContain("密码必须包含小写字母");
+      }
       expect(state.employeeUpdate).not.toHaveBeenCalled();
       expect(state.authSessionCreate).not.toHaveBeenCalled();
       expect(state.emailLoginCodeCreate).not.toHaveBeenCalled();

server/tests/unit/routes/invoicePool.patch.test.js

@@ -180,6 +180,9 @@ describe("PATCH /api/invoice-pool/:id", () => {
       const response = await app.inject({ method, url: `/api/invoice-pool/${INVOICE_ID}${suffix}`, headers: { authorization: "Bearer test" }, payload });
       expect(response.statusCode).toBe(statusCode);
       expect(response.json().error.details.reasonCode).toBe(`invoice_pool.${reason}`);
+      if (reason === "ocr_fields_missing") {
+        expect(response.json().error.details.missingFields).toEqual(["invoiceCode", "sellerName"]);
+      }
       expect(prisma.invoicePool.update).not.toHaveBeenCalled();
       expect(prisma.auditLog.create).not.toHaveBeenCalled();
       expect(JSON.stringify(state.invoice)).toBe(before);

server/tests/unit/routes/paymentBatches.reimbursement.test.js

@@ -1011,6 +1011,42 @@ describe("payment batch reimbursement routes", () => {
     await app.close();
   });
 
+  it("rejects overflowing payment dates before creation writes", async () => {
+    const { app, tx } = await buildApp();
+    try {
+      const response = await app.inject({ method: "POST", url: "/api/payment-batches", headers: { authorization: "Bearer test" },
+        payload: { entityType: "reimbursement", entityIds: [REIMBURSEMENT_ID], defaultPaymentDate: "2026-02-30" } });
+      expect(response.statusCode).toBe(400);
+      expect(response.json().error.details.reasonCode).toBe("payment_batch.invalid_input");
+      expect(response.json().error.details.fieldErrors.defaultPaymentDate).toContain("invalid_calendar_date");
+      expect(tx.paymentBatch.create).not.toHaveBeenCalled();
+      expect(tx.paymentBatchItem.create).not.toHaveBeenCalled();
+      expect(tx.auditLog.create).not.toHaveBeenCalled();
+    } finally { await app.close(); }
+  });
+
+  it.each(["2026-02-30", "2026-13-01"])("rejects invalid payment date override %s without writes", async (paymentDateOverride) => {
+    const { app, tx } = await buildApp();
+    try {
+      const response = await app.inject({ method: "PATCH", url: `/api/payment-batches/${BATCH_ID}/items/${ITEM_ID}`,
+        headers: { authorization: "Bearer test" }, payload: { paymentDateOverride } });
+      expect(response.statusCode).toBe(400);
+      expect(response.json().error.details.fieldErrors.paymentDateOverride).toContain("invalid_calendar_date");
+      expect(tx.paymentBatchItem.update).not.toHaveBeenCalled();
+      expect(tx.auditLog.create).not.toHaveBeenCalled();
+    } finally { await app.close(); }
+  });
+
+  it.each(["2024-02-29", null])("preserves valid or cleared payment date override %s", async (paymentDateOverride) => {
+    const { app, state } = await buildApp();
+    try {
+      const response = await app.inject({ method: "PATCH", url: `/api/payment-batches/${BATCH_ID}/items/${ITEM_ID}`,
+        headers: { authorization: "Bearer test" }, payload: { paymentDateOverride } });
+      expect(response.statusCode).toBe(200);
+      expect(state.batch.items[0].payment_date_override).toEqual(paymentDateOverride ? new Date(`${paymentDateOverride}T00:00:00.000Z`) : null);
+    } finally { await app.close(); }
+  });
+
   it("projects synthetic 0014 omissions in candidates and preflight without writes, and recomputes after repair", async () => {
     const { app, tx, state } = await buildApp();
     const completeOwner = { ...state.reimbursement.owner };

server/tests/unit/routes/reimbursements.create.test.js

@@ -434,6 +434,29 @@ describe("reimbursement create enhancements", () => {
     await app.close();
   });
 
+  it.each(["reimbursementDate", "travelStartDate", "travelEndDate"])("rejects an overflowing %s before draft writes", async (field) => {
+    const { app, state, prisma } = await buildApp();
+    try {
+      const response = await app.inject({ method: "POST", url: "/api/reimbursements",
+        payload: { [field]: "2026-02-30" } });
+      expect(response.statusCode).toBe(400);
+      expect(response.json().error.details.reasonCode).toBe("reimbursement.invalid_input");
+      expect(response.json().error.details.fieldErrors[field]).toContain("invalid_calendar_date");
+      expect(prisma.$transaction).not.toHaveBeenCalled();
+      expect(state.reimbursements).toEqual([]);
+      expect(state.auditLogs).toEqual([]);
+    } finally { await app.close(); }
+  });
+
+  it.each(["2024-02-29", "2026-04-30"])("stores valid reimbursement date %s unchanged", async (reimbursementDate) => {
+    const { app, state } = await buildApp();
+    try {
+      const response = await app.inject({ method: "POST", url: "/api/reimbursements", payload: { reimbursementDate } });
+      expect(response.statusCode).toBe(200);
+      expect(state.reimbursements[0].reimbursement_date.toISOString()).toBe(`${reimbursementDate}T00:00:00.000Z`);
+    } finally { await app.close(); }
+  });
+
   it("creates reimbursement items from template", async () => {
     const { app, state } = await buildApp();
 

server/tests/unit/routes/travelRequests.test.js

@@ -128,6 +128,19 @@ async function buildApp({ employee, prisma }) {
 }
 
 describe("travelRequests routes", () => {
+  it.each(["startDate", "endDate"])("rejects overflowing %s before the edit transaction", async (field) => {
+    const prisma = { $transaction: vi.fn() };
+    const app = await buildApp({ employee: { id: "employee-1", permissionCodes: ["travel.create"] }, prisma });
+    try {
+      const response = await app.inject({ method: "PATCH", url: "/api/travel-requests/11111111-1111-4111-8111-111111111111",
+        headers: { authorization: "Bearer test" }, payload: { [field]: "2026-04-31" } });
+      expect(response.statusCode).toBe(400);
+      expect(response.json().error.code).toBe("VALID_001");
+      expect(response.json().error.details.fieldErrors[field]).toContain("invalid_calendar_date");
+      expect(prisma.$transaction).not.toHaveBeenCalled();
+    } finally { await app.close(); }
+  });
+
   it("lists only own records when actor lacks view_all", async () => {
     const prisma = buildPrisma({
       items: [buildTravelRequestRecord()],

server/tests/unit/routes/workflow.batch.test.js

@@ -196,6 +196,37 @@ async function buildApp(options = {}) {
 }
 
 describe("workflow batch routes", () => {
+  it("returns the precise reminder cooldown time without creating another reminder", async () => {
+    const taskId = "11111111-1111-4111-8111-111111111111";
+    const { app, tx, state } = await buildApp({
+      actor: { id: OWNER_ID, roleCodes: ["employee"], permissionCodes: [] },
+    });
+    tx.workflowHistory.findFirst = vi.fn().mockResolvedValue({
+      id: "synthetic-reminder", created_at: new Date("2026-09-16T08:30:00.000Z"),
+    });
+    vi.useFakeTimers({ toFake: ["Date"] });
+    vi.setSystemTime(new Date("2026-09-16T09:30:00.000Z"));
+    try {
+      const response = await app.inject({ method: "POST", url: `/api/workflow/tasks/${taskId}/remind`, payload: {} });
+      expect(response.statusCode).toBe(409);
+      expect(response.json().error).toMatchObject({ code: "VALID_001", details: {
+        reasonCode: "workflow.remind_cooldown", workflow: "remind_too_frequent",
+        nextAllowedAt: "2026-09-17T08:30:00.000Z",
+      } });
+      expect(tx.workflowHistory.findFirst).toHaveBeenCalledWith(expect.objectContaining({ where: {
+        task_id: taskId, actor_id: OWNER_ID, action: "remind",
+        created_at: { gte: new Date("2026-09-15T09:30:00.000Z") },
+      } }));
+      expect(tx.workflowHistory.create).not.toHaveBeenCalled();
+      expect(tx.notification.create).not.toHaveBeenCalled();
+      expect(tx.workflowTask.update).not.toHaveBeenCalled();
+      expect(state.history).toEqual([]);
+    } finally {
+      vi.useRealTimers();
+      await app.close();
+    }
+  });
+
   it.each([
     ["POST", "/workflow/tasks/invalid/approve", {}, "workflow.task_id_invalid"],
     ["POST", "/workflow/tasks/11111111-1111-4111-8111-111111111111/reject", { comment: " " }, "workflow.comment_invalid"],

server/tests/unit/scripts/error-reason-client.test.js

@@ -3,6 +3,8 @@ const path = require("node:path");
 const ts = require("../../../../client/node_modules/typescript");
 const expectedMessages = require("../fixtures/error-reason-messages.json");
 const { getErrorReason } = require("../../../src/constants/errorReasons");
+const { getMissingRequiredOcrFields } = require("../../../src/services/ocr");
+const { validatePassword } = require("../../../src/utils/passwordPolicy");
 
 function loadClientModule(relativePath, cache = new Map()) {
   const filename = path.resolve(__dirname, "../../../../client/src", relativePath);
@@ -24,6 +26,12 @@ describe("client business error projection", () => {
   const { paymentItemFailureMessage, paymentRiskFlagsForDisplay } = loadClientModule("lib/paymentBatchDisplay.ts", cache);
   const fallback = "操作未完成，请核对页面提示；如仍无法继续，请联系管理员协助处理。";
 
+  it("keeps existing display consumers at minute precision unless seconds are requested", () => {
+    const { formatDisplayDateTime } = loadClientModule("lib/displayFormat.ts", cache);
+    expect(formatDisplayDateTime("2026-12-31T18:30:45.000Z")).toBe("2027年1月1日 02:30");
+    expect(formatDisplayDateTime("2026-12-31T18:30:45.000Z", { includeSeconds: true })).toBe("2027年1月1日 02:30:45");
+  });
+
   it.each(Object.entries(expectedMessages))("keeps exact registered and displayed content for %s", (reasonCode, expected) => {
     expect(getErrorReason(reasonCode).defaultMessage).toBe(expected);
     expect(resolveErrorMessage(new ApiError({ status: 409, code: "VALID_001", message: "private payload", details: { reasonCode } }))).toBe(expected);
@@ -36,7 +44,10 @@ describe("client business error projection", () => {
 
   it.each([
     [{ reasonCode: "invoice_pool.ocr_fields_missing", ocr: "missing_required_fields", missingFields: ["invoiceCode", "sellerName"] }, "票据仍缺少关键字段：发票代码、销售方，补齐后才能标记为可用。"],
-    [{ reasonCode: "workflow.remind_cooldown", workflow: "remind_too_frequent", nextAllowedAt: "2026-09-16T08:30:00.000Z" }, "24 小时内已催办过，请在 2026-09-16 08:30:00 后再试。"],
+    [{ reasonCode: "workflow.remind_cooldown", workflow: "remind_too_frequent", nextAllowedAt: "2026-09-16T08:30:00.000Z" }, "24 小时内已催办过，请在北京时间 2026年9月16日 16:30:00 后再试。"],
+    [{ reasonCode: "workflow.remind_cooldown", nextAllowedAt: "2026-12-31T18:30:45.000Z" }, "24 小时内已催办过，请在北京时间 2027年1月1日 02:30:45 后再试。"],
+    [{ workflow: "remind_too_frequent", nextAllowedAt: "2026-12-31T18:30:45.000Z" }, "24 小时内已催办过，请在北京时间 2027年1月1日 02:30:45 后再试。"],
+    [{ workflow: "remind_too_frequent", nextAllowedAt: "/private/secret" }, "24 小时内已催办过。"],
     [{ reasonCode: "auth.password_policy_failed", password: ["密码长度必须 ≥ 12", "密码必须包含数字"] }, "新密码不符合要求：密码长度必须 ≥ 12；密码必须包含数字。"],
   ])("preserves scoped dynamic guidance alongside reasonCode: %j", (details, expected) => {
     expect(resolveErrorMessage(new ApiError({ status: 400, code: "VALID_001", message: "private payload", details }))).toBe(expected);
@@ -51,6 +62,44 @@ describe("client business error projection", () => {
       .toBe(expectedMessages[details.reasonCode]);
   });
 
+  it("projects every required field emitted by the current VAT edit contract", () => {
+    const labels = {
+      invoiceCode: "发票代码", invoiceNumber: "发票号码", invoiceDate: "开票日期",
+      totalAmount: "总金额", sellerName: "销售方",
+    };
+    const fields = getMissingRequiredOcrFields("vat", {});
+    expect(fields.length).toBeGreaterThan(0);
+    for (const field of fields) {
+      expect(labels[field]).toBeDefined();
+      const details = { reasonCode: "invoice_pool.ocr_fields_missing", missingFields: [field] };
+      expect(resolveErrorMessage(new ApiError({ status: 409, code: "VALID_001", details })))
+        .toBe(`票据仍缺少关键字段：${labels[field]}，补齐后才能标记为可用。`);
+    }
+  });
+
+  it("projects actual password policy failures without silently dropping a rule", () => {
+    vi.stubEnv("WEAK_PASSWORD_CHECK_ENABLED", "true");
+    vi.stubEnv("WEAK_PASSWORD_MIN_SCORE", "2");
+    try {
+      const rules = new Set(["", "a", "A", "1"].flatMap(validatePassword));
+      expect(rules.size).toBe(5);
+      for (const rule of rules) {
+        const details = { reasonCode: "auth.password_policy_failed", password: [rule] };
+        expect(resolveErrorMessage(new ApiError({ status: 400, code: "VALID_001", details })))
+          .toBe(`新密码不符合要求：${rule}。`);
+      }
+    } finally {
+      vi.unstubAllEnvs();
+    }
+  });
+
+  it("rejects a UTC-shaped timestamp that produces a non-finite date", () => {
+    const details = { reasonCode: "workflow.remind_cooldown", nextAllowedAt: "2026-13-16T08:30:00.000Z" };
+    expect(Number.isFinite(new Date(details.nextAllowedAt).getTime())).toBe(false);
+    expect(resolveErrorMessage(new ApiError({ status: 409, code: "VALID_001", details })))
+      .toBe(expectedMessages[details.reasonCode]);
+  });
+
   it("does not expose unknown fields mixed with known OCR labels", () => {
     const details = { reasonCode: "invoice_pool.ocr_fields_missing", missingFields: ["invoiceCode", "/private/secret"], password: ["private payload"] };
     expect(resolveErrorMessage(new ApiError({ status: 409, code: "VALID_001", message: "private payload", details })))

server/tests/unit/utils/date.test.js

@@ -0,0 +1,12 @@
+const { isValidDateOnlyString, parseDateOnlyString } = require("../../../src/utils/date");
+
+describe("strict calendar date validation", () => {
+  it.each(["2024-02-29", "2000-02-29", "2026-04-30", "2026-12-31", "0099-01-01"])("accepts %s without timezone shifts", (value) => {
+    expect(isValidDateOnlyString(value)).toBe(true);
+    expect(parseDateOnlyString(value).toISOString()).toBe(`${value}T00:00:00.000Z`);
+  });
+
+  it.each(["2026-02-30", "2026-02-29", "1900-02-29", "2026-04-31", "2026-13-01", "2026-00-01", "2026-01-00", "2026-01-32", "2026-1-01", " 2026-01-01", "2026-01-01T00:00:00Z", "", null, undefined, 20260101])("rejects invalid input %s", (value) => {
+    expect(isValidDateOnlyString(value)).toBe(false);
+  });
+});