fix(c1): elder 日期用 UTC 零点，修复 @db.Date 提前一天的 off-by-one

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
fix(c1): elder 建档日期字段转 Date 落库（修复 50000）
2026-10-14 21:27:26 +08:00 · 2026-10-14 21:23:21 +08:00 · 2026-10-14 17:29:41 +08:00 · 2026-10-14 17:19:07 +08:00 · 2026-10-14 17:03:12 +08:00 · 2026-10-14 16:57:55 +08:00
17 changed files with 1226 additions and 1 deletions
--- a/.env.example
+++ b/.env.example
@ -29,3 +29,10 @@ REDIS_PORT="6379"
 REDIS_DB="0"
 REDIS_PASSWORD=""
 REDIS_KEY_PREFIX="sysmgr:"
+
+# MinIO（对象存储，供 elder 模块上传评估结论副本）
+MINIO_ENDPOINT="localhost"
+MINIO_PORT=9000
+MINIO_ACCESS_KEY="minioadmin"
+MINIO_SECRET_KEY="minioadmin"
+MINIO_BUCKET="carelink"
--- a/package.json
+++ b/package.json
@ -43,6 +43,7 @@
    "class-validator": "^0.15.1",
    "helmet": "^8.3.0",
    "ioredis": "^6.0.0",
+    "minio": "^8.0.7",
    "nestjs-pino": "^5.3.1",
    "pino": "^10.4.0",
    "pino-pretty": "^13.2.0",
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@ -205,6 +205,9 @@ importers:
      ioredis:
        specifier: ^6.0.0
        version: 6.0.0(supports-color@7.2.0)
+      minio:
+        specifier: ^8.0.7
+        version: 8.0.7
      nestjs-pino:
        specifier: ^5.3.1
        version: 5.3.1(@nestjs/common@12.1.2(class-transformer@0.5.1)(class-validator@0.15.1)(reflect-metadata@0.2.2)(rxjs@7.8.2)(supports-color@7.2.0))(@nestjs/core@12.1.2)(pino-http@11.0.0)(pino@10.4.0)(rxjs@7.8.2)
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    engines: {node: ^14.21.3 || >=16}

+  '@nodable/entities@3.1.0':
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+
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    engines: {node: '>=14'}

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+
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@ -1243,6 +1252,9 @@ packages:
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+
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    hasBin: true

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+
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    engines: {node: 20 || >=22}

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+
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@ -1428,6 +1450,10 @@ packages:
      supports-color:
        optional: true

+  decode-uri-component@0.2.2:
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+    engines: {node: '>=0.10'}
+
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@ -1538,6 +1564,9 @@ packages:
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    engines: {node: '>= 0.6'}

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+
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@ -1574,6 +1603,13 @@ packages:
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+
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+    hasBin: true
+
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@ -1587,6 +1623,10 @@ packages:
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    engines: {node: '>=22'}

+  filter-obj@1.1.0:
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+
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+
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@ -1859,6 +1906,9 @@ packages:
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+  lodash@4.18.1:
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@ -1932,6 +1982,10 @@ packages:
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+
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    engines: {node: '>= 0.8'}

+  util-deprecate@1.0.2:
+    resolution: {integrity: sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==}
+
  validator@13.15.35:
    resolution: {integrity: sha512-TQ5pAGhd5whStmqWvYF4OjQROlmv9SMFVt37qoCBdqRffuuklWYQlCNnEs2ZaIBD1kZRNnikiZOS1eqgkar0iw==}
    engines: {node: '>= 0.10'}
@ -2494,6 +2590,18 @@ packages:
  wrappy@1.0.2:
    resolution: {integrity: sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==}

+  xml-naming@0.3.0:
+    resolution: {integrity: sha512-ghig2TBE/H11aOVgmahA3MhimvkBr6JIYknH/Dhdk10nXwdbIqBJsbfMxpvFPG8bAw77gN29aQWvKpmVoPlvPQ==}
+    engines: {node: '>=16.0.0'}
+
+  xml2js@0.6.2:
+    resolution: {integrity: sha512-T4rieHaC1EXcES0Kxxj4JWgaUQHDk+qwHcYOCFHfiwKz7tOVPLq7Hjq9dM1WCMhylqMEfP7hMcOIChvotiZegA==}
+    engines: {node: '>=4.0.0'}
+
+  xmlbuilder@11.0.1:
+    resolution: {integrity: sha512-fDlsI/kFEx7gLvbecc0/ohLG50fugQp8ryHzMTuW9vSa1GJ0XYWKnhsUx7oie3G98+r56aTQIUB4kht42R3JvA==}
+    engines: {node: '>=4.0'}
+
  yaml@2.9.1:
    resolution: {integrity: sha512-3NxN8+78OdzbT7C/WjGsyfPAtJaN3FNDsWxv7Y7mcDsT/oOmgW8BpyQQFFBnvZE3j9Y2Sdz1ULFLezL7Eb2yFw==}
    engines: {node: '>= 14.6'}
@ -2895,6 +3003,8 @@ snapshots:

  '@noble/hashes@1.8.0': {}

+  '@nodable/entities@3.1.0': {}
+
  '@oxc-project/types@0.153.0': {}

  '@oxlint-tsgolint/darwin-arm64@7.0.2003':
@ -3233,6 +3343,8 @@ snapshots:

  ansis@4.4.0: {}

+  anynum@1.0.1: {}
+
  append-field@1.0.0: {}

  argparse@2.0.1: {}
@ -3249,6 +3361,8 @@ snapshots:
      estree-walker: 3.0.3
      js-tokens: 10.0.0

+  async@3.2.6: {}
+
  asynckit@0.4.0: {}

  atomic-sleep@1.0.0: {}
@ -3257,6 +3371,10 @@ snapshots:

  bcryptjs@3.0.3: {}

+  block-stream2@2.1.0:
+    dependencies:
+      readable-stream: 3.6.2
+
  body-parser@2.3.0(supports-color@7.2.0):
    dependencies:
      bytes: 3.1.2
@ -3275,6 +3393,10 @@ snapshots:
    dependencies:
      balanced-match: 4.0.4

+  browser-or-node@2.1.1: {}
+
+  buffer-crc32@1.0.0: {}
+
  buffer-equal-constant-time@1.0.1: {}

  buffer-from@1.1.2: {}
@ -3411,6 +3533,8 @@ snapshots:
    optionalDependencies:
      supports-color: 7.2.0

+  decode-uri-component@0.2.2: {}
+
  deepmerge-ts@7.1.5: {}

  defu@6.1.7: {}
@ -3521,6 +3645,8 @@ snapshots:

  etag@1.8.1: {}

+  eventemitter3@5.0.4: {}
+
  expect-type@1.4.0: {}

  express@5.2.1(supports-color@7.2.0):
@ -3580,6 +3706,20 @@ snapshots:
    dependencies:
      fast-string-width: 3.0.2

+  fast-xml-builder@1.3.1:
+    dependencies:
+      path-expression-matcher: 1.6.2
+      xml-naming: 0.3.0
+
+  fast-xml-parser@5.11.2:
+    dependencies:
+      '@nodable/entities': 3.1.0
+      fast-xml-builder: 1.3.1
+      is-unsafe: 2.0.2
+      path-expression-matcher: 1.6.2
+      strnum: 2.5.1
+      xml-naming: 0.3.0
+
  fdir@6.5.0(picomatch@4.0.7):
    optionalDependencies:
      picomatch: 4.0.7
@ -3593,6 +3733,8 @@ snapshots:
    transitivePeerDependencies:
      - supports-color

+  filter-obj@1.1.0: {}
+
  finalhandler@2.1.1(supports-color@7.2.0):
    dependencies:
      debug: 4.4.3(supports-color@7.2.0)
@ -3709,6 +3851,8 @@ snapshots:

  ipaddr.js@1.9.1: {}

+  ipaddr.js@2.5.0: {}
+
  is-fullwidth-code-point@3.0.0: {}

  is-interactive@2.0.0: {}
@ -3717,6 +3861,8 @@ snapshots:

  is-unicode-supported@2.1.0: {}

+  is-unsafe@2.0.2: {}
+
  istanbul-lib-coverage@3.2.2: {}

  istanbul-lib-report@3.0.1:
@ -3839,6 +3985,8 @@ snapshots:

  lodash.once@4.1.1: {}

+  lodash@4.18.1: {}
+
  log-symbols@7.0.1:
    dependencies:
      is-unicode-supported: 2.1.0
@ -3896,6 +4044,22 @@ snapshots:

  minimist@1.2.8: {}

+  minio@8.0.7:
+    dependencies:
+      async: 3.2.6
+      block-stream2: 2.1.0
+      browser-or-node: 2.1.1
+      buffer-crc32: 1.0.0
+      eventemitter3: 5.0.4
+      fast-xml-parser: 5.11.2
+      ipaddr.js: 2.5.0
+      lodash: 4.18.1
+      mime-types: 2.1.35
+      query-string: 7.1.3
+      stream-json: 1.9.1
+      through2: 4.0.2
+      xml2js: 0.6.2
+
  ms@2.1.3: {}

  multer@2.4.0:
@ -4002,6 +4166,8 @@ snapshots:

  parseurl@1.3.3: {}

+  path-expression-matcher@1.6.2: {}
+
  path-to-regexp@8.4.2: {}

  pathe@2.0.3: {}
@ -4104,6 +4270,13 @@ snapshots:
      es-define-property: 1.0.1
      side-channel: 1.1.1

+  query-string@7.1.3:
+    dependencies:
+      decode-uri-component: 0.2.2
+      filter-obj: 1.1.0
+      split-on-first: 1.1.0
+      strict-uri-encode: 2.0.0
+
  quick-format-unescaped@4.0.4: {}

  range-parser@1.3.0: {}
@ -4120,6 +4293,12 @@ snapshots:
      defu: 6.1.7
      destr: 2.0.5

+  readable-stream@3.6.2:
+    dependencies:
+      inherits: 2.0.4
+      string_decoder: 1.3.0
+      util-deprecate: 1.0.2
+
  readdirp@4.1.2: {}

  readdirp@5.1.1: {}
@ -4178,6 +4357,8 @@ snapshots:

  safer-buffer@2.1.2: {}

+  sax@1.6.1: {}
+
  secure-json-parse@4.1.0: {}

  semver@7.8.5: {}
@ -4264,6 +4445,8 @@ snapshots:

  source-map@0.8.0: {}

+  split-on-first@1.1.0: {}
+
  split2@4.2.0: {}

  stackback@0.0.2: {}
@ -4276,8 +4459,16 @@ snapshots:

  stdin-discarder@0.3.2: {}

+  stream-chain@2.2.5: {}
+
+  stream-json@1.9.1:
+    dependencies:
+      stream-chain: 2.2.5
+
  streamsearch@1.1.0: {}

+  strict-uri-encode@2.0.0: {}
+
  string-width@4.2.3:
    dependencies:
      emoji-regex: 8.0.0
@ -4289,6 +4480,10 @@ snapshots:
      get-east-asian-width: 1.7.0
      strip-ansi: 7.2.0

+  string_decoder@1.3.0:
+    dependencies:
+      safe-buffer: 5.2.1
+
  strip-ansi@6.0.1:
    dependencies:
      ansi-regex: 5.0.1
@ -4301,6 +4496,10 @@ snapshots:

  strip-json-comments@5.0.3: {}

+  strnum@2.5.1:
+    dependencies:
+      anynum: 1.0.1
+
  strtok3@10.3.5:
    dependencies:
      '@tokenizer/token': 0.3.0
@ -4339,6 +4538,10 @@ snapshots:
    dependencies:
      real-require: 1.0.0

+  through2@4.0.2:
+    dependencies:
+      readable-stream: 3.6.2
+
  tinybench@2.9.0: {}

  tinyexec@1.3.1: {}
@ -4401,6 +4604,8 @@ snapshots:

  unpipe@1.0.0: {}

+  util-deprecate@1.0.2: {}
+
  validator@13.15.35: {}

  vary@1.1.2: {}
@ -4466,6 +4671,15 @@ snapshots:

  wrappy@1.0.2: {}

+  xml-naming@0.3.0: {}
+
+  xml2js@0.6.2:
+    dependencies:
+      sax: 1.6.1
+      xmlbuilder: 11.0.1
+
+  xmlbuilder@11.0.1: {}
+
  yaml@2.9.1:
    optional: true

--- a/prisma/migrations/20261014084652_c1_elder/migration.sql
+++ b/prisma/migrations/20261014084652_c1_elder/migration.sql
@ -0,0 +1,80 @@
+-- CreateTable
+CREATE TABLE `ltc_elder` (
+    `id` VARCHAR(36) NOT NULL,
+    `tenant_code` VARCHAR(64) NOT NULL,
+    `loc_code` VARCHAR(12) NOT NULL,
+    `prev_loc_code` VARCHAR(12) NULL,
+    `transfer_confirm_at` DATETIME(3) NULL,
+    `name` VARCHAR(30) NOT NULL,
+    `gender` CHAR(1) NOT NULL,
+    `birth_date` DATE NOT NULL,
+    `id_card_no` VARCHAR(255) NOT NULL,
+    `phone` VARCHAR(15) NULL,
+    `address` VARCHAR(200) NOT NULL,
+    `guardian_name` VARCHAR(30) NULL,
+    `guardian_phone` VARCHAR(15) NULL,
+    `insur_no` VARCHAR(30) NOT NULL,
+    `insur_type` VARCHAR(10) NOT NULL,
+    `insur_years` INTEGER NULL,
+    `insur_verify_status` VARCHAR(20) NULL,
+    `insur_verify_date` DATE NULL,
+    `assess_level` VARCHAR(20) NULL,
+    `care_level` VARCHAR(20) NULL,
+    `assess_date` DATE NULL,
+    `assess_org` VARCHAR(100) NULL,
+    `assess_evidence_file` VARCHAR(255) NULL,
+    `benefit_start` DATE NULL,
+    `benefit_end` DATE NULL,
+    `treat_status` VARCHAR(20) NOT NULL DEFAULT 'pending_file',
+    `status_source` VARCHAR(10) NOT NULL DEFAULT 'manual',
+    `status_change_date` DATE NULL,
+    `hosp_start` DATE NULL,
+    `hosp_end` DATE NULL,
+    `photo_tier_override` JSON NULL,
+    `need_assess` JSON NULL,
+    `note` TEXT NULL,
+    `biz_line` VARCHAR(20) NOT NULL DEFAULT 'ltci',
+    `created_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+    `created_by` VARCHAR(36) NULL,
+    `updated_at` DATETIME(3) NOT NULL,
+    `deleted_at` DATETIME(3) NULL,
+
+    INDEX `ltc_elder_tenant_code_name_idx`(`tenant_code`, `name`),
+    UNIQUE INDEX `ltc_elder_tenant_code_id_card_no_key`(`tenant_code`, `id_card_no`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
+
+-- CreateTable
+CREATE TABLE `ltc_elder_status_log` (
+    `id` VARCHAR(36) NOT NULL,
+    `elder_id` VARCHAR(36) NOT NULL,
+    `tenant_code` VARCHAR(64) NOT NULL,
+    `from_status` VARCHAR(20) NOT NULL,
+    `to_status` VARCHAR(20) NOT NULL,
+    `change_reason` VARCHAR(200) NOT NULL,
+    `source` VARCHAR(10) NOT NULL DEFAULT 'manual',
+    `operator_id` VARCHAR(36) NOT NULL,
+    `evidence_file` VARCHAR(255) NULL,
+    `changed_at` DATETIME(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
+
+    INDEX `ltc_elder_status_log_elder_id_idx`(`elder_id`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
+
+-- RenameIndex
+ALTER TABLE `ltc_staff` RENAME INDEX `sys_staff_tenant_code_name_idx` TO `ltc_staff_tenant_code_name_idx`;
+
+-- RenameIndex
+ALTER TABLE `ltc_staff` RENAME INDEX `sys_staff_user_id_key` TO `ltc_staff_user_id_key`;
+
+-- RenameIndex
+ALTER TABLE `svc_local` RENAME INDEX `sys_svc_local_loc_code_idx` TO `svc_local_loc_code_idx`;
+
+-- RenameIndex
+ALTER TABLE `svc_mapping` RENAME INDEX `sys_svc_mapping_loc_id_idx` TO `svc_mapping_loc_id_idx`;
+
+-- RenameIndex
+ALTER TABLE `svc_national` RENAME INDEX `sys_svc_national_nat_code_key` TO `svc_national_nat_code_key`;
+
+-- RenameIndex
+ALTER TABLE `svc_org` RENAME INDEX `sys_svc_org_tenant_code_src_type_idx` TO `svc_org_tenant_code_src_type_idx`;
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@ -425,3 +425,66 @@ model LocConfig {

  @@map("loc_config")
 }
+
+/// 老人档案
+model Elder {
+  id                  String    @id @default(uuid(7)) @db.VarChar(36)
+  tenantCode          String    @map("tenant_code") @db.VarChar(64)
+  locCode             String    @map("loc_code") @db.VarChar(12)
+  prevLocCode         String?   @map("prev_loc_code") @db.VarChar(12)
+  transferConfirmAt   DateTime? @map("transfer_confirm_at")
+  name                String    @db.VarChar(30)
+  gender              String    @db.Char(1)
+  birthDate           DateTime  @map("birth_date") @db.Date
+  idCardNo            String    @map("id_card_no") @db.VarChar(255)
+  phone               String?   @db.VarChar(15)
+  address             String    @db.VarChar(200)
+  guardianName        String?   @map("guardian_name") @db.VarChar(30)
+  guardianPhone       String?   @map("guardian_phone") @db.VarChar(15)
+  insurNo             String    @map("insur_no") @db.VarChar(30)
+  insurType           String    @map("insur_type") @db.VarChar(10)
+  insurYears          Int?      @map("insur_years")
+  insurVerifyStatus   String?   @map("insur_verify_status") @db.VarChar(20)
+  insurVerifyDate     DateTime? @map("insur_verify_date") @db.Date
+  assessLevel         String?   @map("assess_level") @db.VarChar(20)
+  careLevel           String?   @map("care_level") @db.VarChar(20)
+  assessDate          DateTime? @map("assess_date") @db.Date
+  assessOrg           String?   @map("assess_org") @db.VarChar(100)
+  assessEvidenceFile  String?   @map("assess_evidence_file") @db.VarChar(255)
+  benefitStart        DateTime? @map("benefit_start") @db.Date
+  benefitEnd          DateTime? @map("benefit_end") @db.Date
+  treatStatus         String    @default("pending_file") @map("treat_status") @db.VarChar(20)
+  statusSource        String    @default("manual") @map("status_source") @db.VarChar(10)
+  statusChangeDate    DateTime? @map("status_change_date") @db.Date
+  hospStart           DateTime? @map("hosp_start") @db.Date
+  hospEnd             DateTime? @map("hosp_end") @db.Date
+  photoTierOverride   Json?     @map("photo_tier_override")
+  needAssess          Json?     @map("need_assess")
+  note                String?   @db.Text
+  bizLine             String    @default("ltci") @map("biz_line") @db.VarChar(20)
+  createdAt           DateTime  @default(now()) @map("created_at")
+  createdBy           String?   @map("created_by") @db.VarChar(36)
+  updatedAt           DateTime  @updatedAt @map("updated_at")
+  deletedAt           DateTime? @map("deleted_at")
+
+  @@unique([tenantCode, idCardNo])
+  @@index([tenantCode, name])
+  @@map("ltc_elder")
+}
+
+/// 待遇状态变更日志
+model ElderStatusLog {
+  id           String   @id @default(uuid(7)) @db.VarChar(36)
+  elderId      String   @map("elder_id") @db.VarChar(36)
+  tenantCode   String   @map("tenant_code") @db.VarChar(64)
+  fromStatus   String   @map("from_status") @db.VarChar(20)
+  toStatus     String   @map("to_status") @db.VarChar(20)
+  changeReason String   @map("change_reason") @db.VarChar(200)
+  source       String   @default("manual") @db.VarChar(10)
+  operatorId   String   @map("operator_id") @db.VarChar(36)
+  evidenceFile String?  @map("evidence_file") @db.VarChar(255)
+  changedAt    DateTime @default(now()) @map("changed_at")
+
+  @@index([elderId])
+  @@map("ltc_elder_status_log")
+}
--- a/src/app.module.ts
+++ b/src/app.module.ts
@ -28,6 +28,8 @@ import { NoticesModule } from './notices/notices.module.js';
 import { AgencyModule } from './agency/agency.module.js';
 import { StaffModule } from './staff/staff.module.js';
 import { CatalogModule } from './catalog/catalog.module.js';
+import { StorageModule } from './storage/storage.module.js';
+import { ElderModule } from './elder/elder.module.js';
 import { AppController } from './app.controller.js';
 import { AppService } from './app.service.js';

@ -53,6 +55,8 @@ import { AppService } from './app.service.js';
    AgencyModule,
    StaffModule,
    CatalogModule,
+    StorageModule,
+    ElderModule,
  ],
  controllers: [AppController],
  providers: [
--- a/src/common/error-codes.ts
+++ b/src/common/error-codes.ts
@ -39,6 +39,11 @@ export const ErrorCodes = {
  SVC_LOC_NOT_FOUND: 42001,
  SVC_ORG_NOT_FOUND: 42002,
  SVC_LOC_IMMUTABLE: 42003,
+  // 服务机构端·老人档案（43）
+  ELDER_NOT_FOUND: 43001,
+  ELDER_ID_CARD_EXISTS: 43002,
+  ELDER_STATUS_REASON_REQUIRED: 43003,
+  ELDER_LEVEL_REQUIRES_EVIDENCE: 43004,
 } as const;

 export type ErrorCode = (typeof ErrorCodes)[keyof typeof ErrorCodes];
--- a/src/common/tenant-template.ts
+++ b/src/common/tenant-template.ts
@ -91,6 +91,13 @@ export const APIS: { code: string; name: string; method: string; path: string; p
  { code: Permissions.svcOrg.list, name: '机构项目列表', method: 'GET', path: '/api/v1/svc/org/list', parent: 'svc-config-catalog' },
  { code: Permissions.svcOrg.config, name: '机构项目配置', method: 'POST', path: '/api/v1/svc/org/config', parent: 'svc-config-catalog' },
  { code: Permissions.svcOrg.newNational, name: '国家新增项', method: 'GET', path: '/api/v1/svc/org/new-national', parent: 'svc-config-loc' },
+  // 服务机构端·老人档案（C1）
+  { code: Permissions.elder.list, name: '老人列表', method: 'GET', path: '/api/v1/elder', parent: 'elder' },
+  { code: Permissions.elder.create, name: '创建老人', method: 'POST', path: '/api/v1/elder', parent: 'elder' },
+  { code: Permissions.elder.detail, name: '老人详情', method: 'GET', path: '/api/v1/elder/:id', parent: 'elder' },
+  { code: Permissions.elder.statusChange, name: '变更待遇状态', method: 'POST', path: '/api/v1/elder/:id/status', parent: 'elder' },
+  { code: Permissions.elder.detail, name: '状态日志', method: 'GET', path: '/api/v1/elder/:id/status/log', parent: 'elder' },
+  { code: Permissions.elder.create, name: '上传评估结论', method: 'POST', path: '/api/v1/elder/assess-evidence', parent: 'elder' },
 ];

 /** 按钮资源（纯前端按钮，无独立受控接口）。 */
--- a/src/elder/dto.ts
+++ b/src/elder/dto.ts
@ -0,0 +1,182 @@
+import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
+import { IsDateString, IsIn, IsInt, IsNotEmpty, IsOptional, IsString, MaxLength } from 'class-validator';
+import { PageQuery } from '../common/page.dto.js';
+
+/** 十态待遇状态机（唯一来源，见 docs/superpowers/specs C1 设计 §4）。 */
+export const TREAT_STATUSES = [
+  'pending_file',
+  'waiting_period',
+  'active',
+  'hosp_pause',
+  'review_waiting',
+  'transferring',
+  'dead',
+  'long_away',
+  'benefit_expired',
+  'terminated',
+] as const;
+
+/** 不可逆态：处于这些状态时禁止再变更。 */
+export const IRREVERSIBLE_TREAT_STATUSES: readonly string[] = ['dead', 'terminated'];
+
+/**
+ * 老人档案（elder）DTO。字段字典以 shared/data-model 为准（ltc_elder）。
+ * - 不含 tenantCode/createdBy/createdAt/updatedAt/deletedAt（系统字段，服务端注入）；
+ * - birth_date 由身份证 7-14 位带出，不接受前端传入；
+ * - treat_status/status_source 由服务端定，不接受前端传入；
+ * - id_card_no 本期存明文（加密机制由后续安全 change 统一落地，见 elder.service.ts TODO）。
+ */
+export class CreateElderDto {
+  @ApiProperty({ description: '参保地/统筹区 code（loc_code）' })
+  @IsString()
+  @IsNotEmpty()
+  locCode!: string;
+
+  @ApiProperty({ description: '姓名' })
+  @IsString()
+  @IsNotEmpty()
+  @MaxLength(30)
+  name!: string;
+
+  @ApiProperty({ description: '性别：M/F' })
+  @IsString()
+  @IsNotEmpty()
+  @IsIn(['M', 'F'])
+  gender!: string;
+
+  @ApiProperty({ description: '身份证号（18 位，服务端做 GB11643 校验位校验）' })
+  @IsString()
+  @IsNotEmpty()
+  idCardNo!: string;
+
+  @ApiPropertyOptional({ description: '联系电话' })
+  @IsOptional()
+  @IsString()
+  phone?: string;
+
+  @ApiProperty({ description: '居住地址' })
+  @IsString()
+  @IsNotEmpty()
+  @MaxLength(200)
+  address!: string;
+
+  @ApiPropertyOptional({ description: '紧急联系人' })
+  @IsOptional()
+  @IsString()
+  guardianName?: string;
+
+  @ApiPropertyOptional({ description: '紧急联系人电话' })
+  @IsOptional()
+  @IsString()
+  guardianPhone?: string;
+
+  @ApiProperty({ description: '医保参保号' })
+  @IsString()
+  @IsNotEmpty()
+  insurNo!: string;
+
+  @ApiProperty({ description: '参保类型：employee/resident' })
+  @IsString()
+  @IsNotEmpty()
+  insurType!: string;
+
+  @ApiPropertyOptional({ description: '缴费年限' })
+  @IsOptional()
+  @IsInt()
+  insurYears?: number;
+
+  @ApiPropertyOptional({ description: '参保核验状态：verified/unverified' })
+  @IsOptional()
+  @IsString()
+  insurVerifyStatus?: string;
+
+  @ApiPropertyOptional({ description: '参保核验日期（YYYY-MM-DD）' })
+  @IsOptional()
+  @IsDateString()
+  insurVerifyDate?: string;
+
+  @ApiPropertyOptional({ description: '失能等级（sev_1/sev_2/sev_3），有值则须上传评估结论副本' })
+  @IsOptional()
+  @IsString()
+  assessLevel?: string;
+
+  @ApiPropertyOptional({ description: '护理等级（care_1/care_2/care_3），有值则须上传评估结论副本' })
+  @IsOptional()
+  @IsString()
+  careLevel?: string;
+
+  @ApiPropertyOptional({ description: '评估结论日期（YYYY-MM-DD）' })
+  @IsOptional()
+  @IsDateString()
+  assessDate?: string;
+
+  @ApiPropertyOptional({ description: '评估机构名称' })
+  @IsOptional()
+  @IsString()
+  assessOrg?: string;
+
+  @ApiPropertyOptional({ description: '评估结论副本 MinIO key（有等级则必填）' })
+  @IsOptional()
+  @IsString()
+  assessEvidenceFile?: string;
+
+  @ApiPropertyOptional({ description: '待遇有效期起（YYYY-MM-DD）' })
+  @IsOptional()
+  @IsDateString()
+  benefitStart?: string;
+
+  @ApiPropertyOptional({ description: '待遇有效期止（YYYY-MM-DD）' })
+  @IsOptional()
+  @IsDateString()
+  benefitEnd?: string;
+
+  @ApiPropertyOptional({ description: '住院起（YYYY-MM-DD）' })
+  @IsOptional()
+  @IsDateString()
+  hospStart?: string;
+
+  @ApiPropertyOptional({ description: '住院止（YYYY-MM-DD）' })
+  @IsOptional()
+  @IsDateString()
+  hospEnd?: string;
+
+  @ApiPropertyOptional({ description: '备注' })
+  @IsOptional()
+  @IsString()
+  note?: string;
+}
+
+export class ListElderQuery extends PageQuery {
+  @ApiPropertyOptional({ description: '姓名（模糊）' })
+  @IsOptional()
+  @IsString()
+  name?: string;
+
+  @ApiPropertyOptional({ description: '待遇状态' })
+  @IsOptional()
+  @IsString()
+  treatStatus?: string;
+
+  @ApiPropertyOptional({ description: '失能/护理等级（匹配 assess_level 或 care_level）' })
+  @IsOptional()
+  @IsString()
+  level?: string;
+}
+
+export class ChangeStatusDto {
+  @ApiProperty({ description: '目标待遇状态（十态之一）', enum: TREAT_STATUSES })
+  @IsString()
+  @IsNotEmpty()
+  @IsIn(TREAT_STATUSES)
+  toStatus!: string;
+
+  @ApiProperty({ description: '变更原因（必填）' })
+  @IsString()
+  @IsNotEmpty()
+  changeReason!: string;
+
+  @ApiPropertyOptional({ description: '佐证材料 MinIO key' })
+  @IsOptional()
+  @IsString()
+  evidenceFile?: string;
+}
--- a/src/elder/elder.controller.ts
+++ b/src/elder/elder.controller.ts
@ -0,0 +1,51 @@
+import { Body, Controller, Get, Param, Post, Query, UploadedFile, UseInterceptors } from '@nestjs/common';
+import { FileInterceptor } from '@nestjs/platform-express';
+import { Permissions } from '../common/permissions.js';
+import { AuditLog, RequirePermissions } from '../auth/decorators.js';
+import { ChangeStatusDto, CreateElderDto, ListElderQuery } from './dto.js';
+import { ElderService } from './elder.service.js';
+
+@Controller('elder')
+export class ElderController {
+  constructor(private readonly service: ElderService) {}
+
+  @Get()
+  @RequirePermissions(Permissions.elder.list)
+  list(@Query() q: ListElderQuery) {
+    return this.service.listElder(q);
+  }
+
+  @Post()
+  @RequirePermissions(Permissions.elder.create)
+  @AuditLog('elder', 'create')
+  create(@Body() dto: CreateElderDto) {
+    return this.service.createElder(dto);
+  }
+
+  @Get(':id')
+  @RequirePermissions(Permissions.elder.detail)
+  detail(@Param('id') id: string) {
+    return this.service.detail(id);
+  }
+
+  @Post(':id/status')
+  @RequirePermissions(Permissions.elder.statusChange)
+  @AuditLog('elder', 'status-change')
+  changeStatus(@Param('id') id: string, @Body() dto: ChangeStatusDto) {
+    return this.service.changeStatus(id, dto);
+  }
+
+  @Get(':id/status/log')
+  @RequirePermissions(Permissions.elder.detail)
+  statusLog(@Param('id') id: string) {
+    return this.service.statusLog(id);
+  }
+
+  @Post('assess-evidence')
+  @RequirePermissions(Permissions.elder.create)
+  @AuditLog('elder', 'upload-evidence')
+  @UseInterceptors(FileInterceptor('file'))
+  uploadEvidence(@UploadedFile() file: { buffer: Buffer; originalname: string }) {
+    return this.service.uploadEvidence(file);
+  }
+}
--- a/src/elder/elder.module.ts
+++ b/src/elder/elder.module.ts
@ -0,0 +1,12 @@
+import { Module } from '@nestjs/common';
+import { ElderController } from './elder.controller.js';
+import { ElderService } from './elder.service.js';
+import { StorageModule } from '../storage/storage.module.js';
+import { AuditLogsModule } from '../audit-logs/audit-logs.module.js';
+
+@Module({
+  imports: [StorageModule, AuditLogsModule],
+  controllers: [ElderController],
+  providers: [ElderService],
+})
+export class ElderModule {}
--- a/src/elder/elder.service.spec.ts
+++ b/src/elder/elder.service.spec.ts
@ -0,0 +1,315 @@
+import { describe, expect, it, vi } from 'vitest';
+import { ElderService, maskIdCard, toDateOnly } from './elder.service.js';
+import type { PrismaService } from '../prisma/prisma.service.js';
+import type { StorageService } from '../storage/storage.service.js';
+import type { AuditLogsService } from '../audit-logs/audit-logs.service.js';
+import { ErrorCodes } from '../common/error-codes.js';
+import { runWithRequestContext } from '../common/context/request-context.js';
+import type { RequestContext } from '../common/context/request-context.js';
+
+const ctx: RequestContext = {
+  tenantCode: 'T001',
+  userId: 'u1',
+  username: 'admin',
+  super: false,
+  dataScope: 'all',
+  orgCode: null,
+  orgCodes: [],
+};
+
+/** 通过 GB11643 校验位校验的合法身份证（出生日期 1990-01-01）。 */
+const VALID_ID_CARD = '530102199001011231';
+
+const baseDto = {
+  locCode: '530100',
+  name: '张三',
+  gender: 'M',
+  idCardNo: VALID_ID_CARD,
+  phone: '13800000000',
+  address: '昆明市五华区',
+  insurNo: 'INS001',
+  insurType: 'employee',
+};
+
+function makeService(
+  overrides: {
+    elderFindFirst?: ReturnType<typeof vi.fn>;
+    elderFindUnique?: ReturnType<typeof vi.fn>;
+    elderFindMany?: ReturnType<typeof vi.fn>;
+    elderCount?: ReturnType<typeof vi.fn>;
+    elderCreate?: ReturnType<typeof vi.fn>;
+    elderUpdate?: ReturnType<typeof vi.fn>;
+    userRoleFindMany?: ReturnType<typeof vi.fn>;
+    statusLogCreate?: ReturnType<typeof vi.fn>;
+    statusLogFindMany?: ReturnType<typeof vi.fn>;
+    auditRecord?: ReturnType<typeof vi.fn>;
+  } = {},
+) {
+  const elderFindFirst = overrides.elderFindFirst ?? vi.fn().mockResolvedValue(null);
+  const elderFindUnique = overrides.elderFindUnique ?? vi.fn().mockResolvedValue(null);
+  const elderFindMany = overrides.elderFindMany ?? vi.fn().mockResolvedValue([]);
+  const elderCount = overrides.elderCount ?? vi.fn().mockResolvedValue(0);
+  const elderCreate = overrides.elderCreate ?? vi.fn().mockResolvedValue({ id: 'e1', ...baseDto });
+  const elderUpdate = overrides.elderUpdate ?? vi.fn().mockResolvedValue({ id: 'e1' });
+  const userRoleFindMany = overrides.userRoleFindMany ?? vi.fn().mockResolvedValue([]);
+  const statusLogCreate = overrides.statusLogCreate ?? vi.fn().mockResolvedValue({ id: 'sl1' });
+  const statusLogFindMany = overrides.statusLogFindMany ?? vi.fn().mockResolvedValue([]);
+  const auditRecord = overrides.auditRecord ?? vi.fn().mockResolvedValue(undefined);
+
+  const prisma = {
+    client: {
+      elder: {
+        findFirst: elderFindFirst,
+        findUnique: elderFindUnique,
+        findMany: elderFindMany,
+        count: elderCount,
+        create: elderCreate,
+        update: elderUpdate,
+      },
+      elderStatusLog: { create: statusLogCreate, findMany: statusLogFindMany },
+      userRole: { findMany: userRoleFindMany },
+    },
+  };
+  const storage = {
+    buildKey: vi.fn().mockReturnValue('elder/T001/1-a.jpg'),
+    upload: vi.fn().mockResolvedValue('elder/T001/1-a.jpg'),
+  };
+  const auditLogs = { record: auditRecord };
+  const service = new ElderService(
+    prisma as unknown as PrismaService,
+    storage as unknown as StorageService,
+    auditLogs as unknown as AuditLogsService,
+  );
+  return {
+    service,
+    elderFindFirst,
+    elderFindUnique,
+    elderFindMany,
+    elderCount,
+    elderCreate,
+    elderUpdate,
+    userRoleFindMany,
+    statusLogCreate,
+    statusLogFindMany,
+    auditRecord,
+    storage,
+  };
+}
+
+describe('maskIdCard', () => {
+  it('18 位 → 前4 + 10个* + 后4', () => {
+    expect(maskIdCard('530102199001011231')).toBe('5301**********1231');
+  });
+  it('15 位 → 前3 + 8个* + 后4', () => {
+    expect(maskIdCard('530102900101123')).toBe('530********1123');
+  });
+  it('空串与非常见长度原样返回', () => {
+    expect(maskIdCard('')).toBe('');
+    expect(maskIdCard('123')).toBe('123');
+  });
+});
+
+describe('toDateOnly', () => {
+  it('date-only 字符串 → UTC 零点 Date（不提前一天）', () => {
+    expect(toDateOnly('1990-01-01')?.toISOString()).toBe('1990-01-01T00:00:00.000Z');
+    expect(toDateOnly('2025-01-01')?.toISOString()).toBe('2025-01-01T00:00:00.000Z');
+  });
+
+  it('空值返回 undefined', () => {
+    expect(toDateOnly(undefined)).toBeUndefined();
+    expect(toDateOnly('')).toBeUndefined();
+  });
+});
+
+describe('ElderService', () => {
+  it('create 有等级无评估结论副本 → 抛 ELDER_LEVEL_REQUIRES_EVIDENCE', async () => {
+    const { service, elderCreate } = makeService();
+
+    await expect(
+      runWithRequestContext(ctx, () => service.createElder({ ...baseDto, assessLevel: 'sev_1' })),
+    ).rejects.toMatchObject({ response: { code: ErrorCodes.ELDER_LEVEL_REQUIRES_EVIDENCE } });
+
+    expect(elderCreate).not.toHaveBeenCalled();
+  });
+
+  it('create benefit_start 未来 → treatStatus = waiting_period', async () => {
+    const { service, elderCreate } = makeService();
+
+    await runWithRequestContext(ctx, () =>
+      service.createElder({ ...baseDto, benefitStart: '2099-01-01', benefitEnd: '2099-12-31' }),
+    );
+
+    expect(elderCreate).toHaveBeenCalledWith({
+      data: expect.objectContaining({ treatStatus: 'waiting_period', statusSource: 'manual' }),
+    });
+  });
+
+  it('create 待遇有效期覆盖今天 → treatStatus = active，且出生日期由身份证带出为 Date', async () => {
+    const { service, elderCreate } = makeService();
+
+    await runWithRequestContext(ctx, () =>
+      service.createElder({ ...baseDto, benefitStart: '2000-01-01', benefitEnd: '2099-12-31' }),
+    );
+
+    expect(elderCreate).toHaveBeenCalledWith({
+      data: expect.objectContaining({ treatStatus: 'active', birthDate: expect.any(Date) }),
+    });
+  });
+
+  it('合法建档（含日期字段）成功创建，日期字段转为 UTC 零点 Date 且值正确', async () => {
+    const { service, elderCreate } = makeService();
+
+    await runWithRequestContext(ctx, () =>
+      service.createElder({
+        ...baseDto,
+        benefitStart: '2025-01-01',
+        benefitEnd: '2025-12-31',
+        assessDate: '2025-01-15',
+        insurVerifyDate: '2025-01-10',
+        hospStart: '2025-02-01',
+        hospEnd: '2025-02-05',
+      }),
+    );
+
+    const data = elderCreate.mock.calls[0][0].data as Record<string, unknown>;
+    expect(data.birthDate).toBeInstanceOf(Date);
+    expect((data.birthDate as Date).toISOString()).toBe('1990-01-01T00:00:00.000Z');
+    expect((data.benefitStart as Date).toISOString()).toBe('2025-01-01T00:00:00.000Z');
+    expect((data.benefitEnd as Date).toISOString()).toBe('2025-12-31T00:00:00.000Z');
+    expect((data.assessDate as Date).toISOString()).toBe('2025-01-15T00:00:00.000Z');
+    expect((data.insurVerifyDate as Date).toISOString()).toBe('2025-01-10T00:00:00.000Z');
+    expect((data.hospStart as Date).toISOString()).toBe('2025-02-01T00:00:00.000Z');
+    expect((data.hospEnd as Date).toISOString()).toBe('2025-02-05T00:00:00.000Z');
+  });
+
+  it('同机构重复 id_card_no → 抛 ELDER_ID_CARD_EXISTS', async () => {
+    const elderFindFirst = vi.fn().mockResolvedValue({ id: 'e-other', idCardNo: VALID_ID_CARD });
+    const elderCreate = vi.fn();
+    const { service } = makeService({ elderFindFirst, elderCreate });
+
+    await expect(
+      runWithRequestContext(ctx, () => service.createElder(baseDto)),
+    ).rejects.toMatchObject({ response: { code: ErrorCodes.ELDER_ID_CARD_EXISTS } });
+
+    expect(elderFindFirst).toHaveBeenCalledWith({ where: { idCardNo: VALID_ID_CARD } });
+    expect(elderCreate).not.toHaveBeenCalled();
+  });
+
+  it('changeStatus 缺 changeReason → 抛 ELDER_STATUS_REASON_REQUIRED', async () => {
+    const { service, elderUpdate } = makeService();
+
+    await expect(
+      runWithRequestContext(ctx, () => service.changeStatus('e1', { toStatus: 'active', changeReason: '' })),
+    ).rejects.toMatchObject({ response: { code: ErrorCodes.ELDER_STATUS_REASON_REQUIRED } });
+
+    expect(elderUpdate).not.toHaveBeenCalled();
+  });
+
+  it('changeStatus 写状态日志（from/to/reason/operator）', async () => {
+    const elderFindUnique = vi.fn().mockResolvedValue({ id: 'e1', treatStatus: 'waiting_period', name: '张三' });
+    const { service, statusLogCreate } = makeService({ elderFindUnique });
+
+    const result = await runWithRequestContext(ctx, () =>
+      service.changeStatus('e1', { toStatus: 'active', changeReason: '待遇生效' }),
+    );
+
+    expect(result).toEqual({ id: 'e1', fromStatus: 'waiting_period', toStatus: 'active' });
+    expect(statusLogCreate).toHaveBeenCalledWith({
+      data: expect.objectContaining({
+        elderId: 'e1',
+        tenantCode: 'T001',
+        fromStatus: 'waiting_period',
+        toStatus: 'active',
+        changeReason: '待遇生效',
+        operatorId: 'u1',
+      }),
+    });
+  });
+
+  it('changeStatus 对不可逆态（dead/terminated）拒绝变更', async () => {
+    const elderFindUnique = vi.fn().mockResolvedValue({ id: 'e1', treatStatus: 'dead', name: '张三' });
+    const { service, statusLogCreate } = makeService({ elderFindUnique });
+
+    await expect(
+      runWithRequestContext(ctx, () => service.changeStatus('e1', { toStatus: 'active', changeReason: '恢复' })),
+    ).rejects.toThrowError('当前待遇状态不可再变更');
+
+    expect(statusLogCreate).not.toHaveBeenCalled();
+  });
+
+  it('changeStatus 后 statusLog 返回写入的日志', async () => {
+    const elderFindUnique = vi.fn().mockResolvedValue({ id: 'e1', treatStatus: 'waiting_period', name: '张三' });
+    const statusLogFindMany = vi.fn().mockResolvedValue([
+      { id: 'sl1', elderId: 'e1', fromStatus: 'waiting_period', toStatus: 'active', changeReason: '待遇生效', operatorId: 'u1' },
+    ]);
+    const { service, statusLogCreate } = makeService({ elderFindUnique, statusLogFindMany });
+
+    await runWithRequestContext(ctx, () => service.changeStatus('e1', { toStatus: 'active', changeReason: '待遇生效' }));
+    const logs = await runWithRequestContext(ctx, () => service.statusLog('e1'));
+
+    expect(statusLogCreate).toHaveBeenCalled();
+    expect(logs).toHaveLength(1);
+    expect(logs[0]).toMatchObject({ fromStatus: 'waiting_period', toStatus: 'active', operatorId: 'u1' });
+  });
+
+  it('create 待遇止早于起 → 抛 400', async () => {
+    const { service, elderCreate } = makeService();
+
+    await expect(
+      runWithRequestContext(ctx, () =>
+        service.createElder({ ...baseDto, benefitStart: '2025-01-01', benefitEnd: '2024-01-01' }),
+      ),
+    ).rejects.toThrowError('待遇有效期止须晚于待遇有效期起');
+
+    expect(elderCreate).not.toHaveBeenCalled();
+  });
+
+  it('list 返回掩码 id_card_no', async () => {
+    const elderFindMany = vi.fn().mockResolvedValue([
+      { id: 'e1', idCardNo: VALID_ID_CARD, name: '张三', treatStatus: 'active' },
+    ]);
+    const elderCount = vi.fn().mockResolvedValue(1);
+    const { service } = makeService({ elderFindMany, elderCount });
+
+    const res = await runWithRequestContext(ctx, () => service.listElder({ page: 1, pageSize: 20 }));
+
+    expect(res.list[0].idCardNo).toBe('5301**********1231');
+    expect(res.total).toBe(1);
+  });
+
+  it('detail 非 admin/qc 不返回明文', async () => {
+    const elderFindUnique = vi.fn().mockResolvedValue({ id: 'e1', idCardNo: VALID_ID_CARD, name: '张三' });
+    const userRoleFindMany = vi.fn().mockResolvedValue([{ roleCode: 'nurse' }]);
+    const { service, auditRecord } = makeService({ elderFindUnique, userRoleFindMany });
+
+    const res = await runWithRequestContext(ctx, () => service.detail('e1'));
+
+    expect(res.idCardNo).toBe('5301**********1231');
+    expect(auditRecord).not.toHaveBeenCalled();
+  });
+
+  it('detail admin/qc 返回明文并写审计', async () => {
+    const elderFindUnique = vi.fn().mockResolvedValue({ id: 'e1', idCardNo: VALID_ID_CARD, name: '张三' });
+    const userRoleFindMany = vi.fn().mockResolvedValue([{ roleCode: 'admin' }]);
+    const { service, auditRecord } = makeService({ elderFindUnique, userRoleFindMany });
+
+    const res = await runWithRequestContext(ctx, () => service.detail('e1'));
+
+    expect(res.idCardNo).toBe(VALID_ID_CARD);
+    expect(auditRecord).toHaveBeenCalledWith(
+      expect.objectContaining({ module: 'elder', action: 'view-id-card', userId: 'u1' }),
+    );
+  });
+
+  it('uploadEvidence 读 buffer → buildKey + upload → 返回 { key }', async () => {
+    const { service, storage } = makeService();
+
+    const res = await runWithRequestContext(ctx, () =>
+      service.uploadEvidence({ buffer: Buffer.from('x'), originalname: 'a.jpg' }),
+    );
+
+    expect(storage.buildKey).toHaveBeenCalledWith('T001', 'a.jpg');
+    expect(storage.upload).toHaveBeenCalledWith(expect.any(Buffer), 'elder/T001/1-a.jpg');
+    expect(res).toEqual({ key: 'elder/T001/1-a.jpg' });
+  });
+});
--- a/src/elder/elder.service.ts
+++ b/src/elder/elder.service.ts
@ -0,0 +1,226 @@
+import { BadRequestException, HttpStatus, Injectable } from '@nestjs/common';
+import { BaseCrudService } from '../common/base-crud.service.js';
+import { PrismaService } from '../prisma/prisma.service.js';
+import { getRequestContext } from '../common/context/request-context.js';
+import { BusinessException } from '../common/business-exception.js';
+import { ErrorCodes } from '../common/error-codes.js';
+import { StorageService } from '../storage/storage.service.js';
+import { AuditLogsService } from '../audit-logs/audit-logs.service.js';
+import { ChangeStatusDto, CreateElderDto, IRREVERSIBLE_TREAT_STATUSES, ListElderQuery } from './dto.js';
+
+/**
+ * 身份证掩码：18 位 → 前4 + 10个* + 后4；15 位 → 前3 + 8个* + 后4；其余原样。
+ * 列表/非授权详情返回掩码；明文仅 admin/qc（或平台超管）可见且落审计。
+ */
+export function maskIdCard(id: string): string {
+  if (!id) return '';
+  if (id.length === 18) return `${id.slice(0, 4)}**********${id.slice(-4)}`;
+  if (id.length === 15) return `${id.slice(0, 3)}********${id.slice(-4)}`;
+  return id;
+}
+
+/** GB11643-1999 加权因子与校验码映射。 */
+const ID_WEIGHTS = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
+const ID_CHECK_CODES = ['1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'];
+
+/** 身份证 18 位 + 校验位校验，通过返回出生日期（YYYY-MM-DD）。 */
+function deriveBirthDate(idCardNo: string): string {
+  if (!/^\d{17}[\dXx]$/.test(idCardNo)) {
+    throw new BadRequestException('身份证号格式不正确（须 18 位，末位可为 X）');
+  }
+  const sum = ID_WEIGHTS.reduce((acc, w, i) => acc + w * Number(idCardNo[i]), 0);
+  if (ID_CHECK_CODES[sum % 11] !== idCardNo[17].toUpperCase()) {
+    throw new BadRequestException('身份证号校验位错误');
+  }
+  return `${idCardNo.slice(6, 10)}-${idCardNo.slice(10, 12)}-${idCardNo.slice(12, 14)}`;
+}
+
+/** 本地今天（YYYY-MM-DD，字符串比较即日期比较）。 */
+function todayStr(): string {
+  const d = new Date();
+  const m = String(d.getMonth() + 1).padStart(2, '0');
+  const day = String(d.getDate()).padStart(2, '0');
+  return `${d.getFullYear()}-${m}-${day}`;
+}
+
+/** 建档初始状态：待遇有效期覆盖今天 → active；否则 waiting_period。 */
+function resolveInitialStatus(benefitStart?: string, benefitEnd?: string): string {
+  if (benefitStart && benefitEnd) {
+    const today = todayStr();
+    if (benefitStart <= today && today <= benefitEnd) return 'active';
+  }
+  return 'waiting_period';
+}
+
+/** YYYY-MM-DD → UTC 零点 Date（Prisma @db.Date 按 UTC instant 取日期，须用 UTC 零点避免时区回退一天）；空值返回 undefined。 */
+export function toDateOnly(v?: string): Date | undefined {
+  if (!v) return undefined;
+  return new Date(`${v}T00:00:00Z`);
+}
+
+/**
+ * 老人档案（elder）业务服务。elder 是租户级软删模型，读写经 Prisma 扩展自动注入
+ * tenantCode / deletedAt 过滤；创建时 tenantCode/createdBy 由 BaseCrudService 注入。
+ * elder_status_log 为 append-only 租户级模型（无软删），tenantCode 由本 service 显式写入。
+ */
+@Injectable()
+export class ElderService extends BaseCrudService {
+  constructor(
+    prisma: PrismaService,
+    private readonly storage: StorageService,
+    private readonly auditLogs: AuditLogsService,
+  ) {
+    super(prisma, 'elder');
+  }
+
+  /** 分页列表：状态/等级/姓名筛选；身份证服务端掩码。 */
+  async listElder(q: ListElderQuery) {
+    const where: Record<string, unknown> = {};
+    if (q.name) where.name = { contains: q.name };
+    if (q.treatStatus) where.treatStatus = q.treatStatus;
+    if (q.level) where.OR = [{ assessLevel: q.level }, { careLevel: q.level }];
+    const page = await this.paginate(q.page, q.pageSize, where);
+    return {
+      ...page,
+      list: page.list.map((e: Record<string, unknown>) => ({ ...e, idCardNo: maskIdCard(String(e.idCardNo ?? '')) })),
+    };
+  }
+
+  /**
+   * 建档：校验身份证（18 位+校验位）→ 同机构防重 → 等级与副本绑定 →
+   * 出生日期由身份证带出 → 初始状态由待遇有效期决定。
+   */
+  async createElder(dto: CreateElderDto) {
+    const idCardNo = dto.idCardNo.trim();
+    const birthDate = deriveBirthDate(idCardNo);
+    this.assertBenefitRange(dto.benefitStart, dto.benefitEnd);
+    await this.assertIdCardUnique(idCardNo);
+    if ((dto.assessLevel || dto.careLevel) && !dto.assessEvidenceFile) {
+      throw new BusinessException(
+        ErrorCodes.ELDER_LEVEL_REQUIRES_EVIDENCE,
+        '填写等级须上传评估结论副本',
+        HttpStatus.BAD_REQUEST,
+      );
+    }
+    const treatStatus = resolveInitialStatus(dto.benefitStart, dto.benefitEnd);
+    // TODO(id_card_no 加密): 本期直接存明文，加密机制由后续 security change 统一落地。
+    return super.create({
+      ...dto,
+      idCardNo,
+      birthDate: toDateOnly(birthDate),
+      treatStatus,
+      statusSource: 'manual',
+      benefitStart: toDateOnly(dto.benefitStart),
+      benefitEnd: toDateOnly(dto.benefitEnd),
+      assessDate: toDateOnly(dto.assessDate),
+      insurVerifyDate: toDateOnly(dto.insurVerifyDate),
+      hospStart: toDateOnly(dto.hospStart),
+      hospEnd: toDateOnly(dto.hospEnd),
+    });
+  }
+
+  /** 详情：admin/qc（或平台超管）返回身份证明文并显式写审计；否则掩码。 */
+  async detail(id: string) {
+    const elder = await this.requireExists(id);
+    if (await this.canViewPlainIdCard()) {
+      const ctx = getRequestContext();
+      await this.auditLogs.record({
+        tenantCode: ctx?.tenantCode ?? '',
+        userId: ctx?.userId ?? null,
+        username: ctx?.username ?? null,
+        module: 'elder',
+        action: 'view-id-card',
+        status: 'success',
+        params: JSON.stringify({ elderId: id, elderName: elder.name }),
+      });
+      return elder;
+    }
+    return { ...elder, idCardNo: maskIdCard(String(elder.idCardNo ?? '')) };
+  }
+
+  /** 变更待遇状态：changeReason 必填；写 elder_status_log（from/to/reason/operator/changedAt）。 */
+  async changeStatus(id: string, dto: ChangeStatusDto) {
+    if (!dto.changeReason) {
+      throw new BusinessException(
+        ErrorCodes.ELDER_STATUS_REASON_REQUIRED,
+        '变更状态须填写原因',
+        HttpStatus.BAD_REQUEST,
+      );
+    }
+    const elder = await this.requireExists(id);
+    if (IRREVERSIBLE_TREAT_STATUSES.includes(elder.treatStatus)) {
+      throw new BadRequestException('当前待遇状态不可再变更');
+    }
+    const ctx = getRequestContext();
+    const fromStatus = elder.treatStatus;
+    await this.update(id, {
+      treatStatus: dto.toStatus,
+      statusSource: 'manual',
+      statusChangeDate: new Date(),
+    });
+    await this.prisma.client.elderStatusLog.create({
+      data: {
+        elderId: id,
+        tenantCode: ctx?.tenantCode ?? '',
+        fromStatus,
+        toStatus: dto.toStatus,
+        changeReason: dto.changeReason,
+        source: 'manual',
+        operatorId: ctx?.userId ?? '',
+        evidenceFile: dto.evidenceFile ?? null,
+      },
+    });
+    return { id, fromStatus, toStatus: dto.toStatus };
+  }
+
+  /** 状态变更历史（按时间倒序）。 */
+  statusLog(id: string) {
+    const ctx = getRequestContext();
+    return this.prisma.client.elderStatusLog.findMany({
+      where: { elderId: id, tenantCode: ctx?.tenantCode },
+      orderBy: { changedAt: 'desc' },
+    });
+  }
+
+  /** 上传评估结论副本：读 buffer → StorageService.buildKey + upload → 返回 { key }。 */
+  async uploadEvidence(file: { buffer: Buffer; originalname: string }) {
+    const ctx = getRequestContext();
+    const key = this.storage.buildKey(ctx?.tenantCode ?? '', file.originalname);
+    await this.storage.upload(file.buffer, key);
+    return { key };
+  }
+
+  /** admin/qc 角色（或平台超管）可查看身份证明文。 */
+  private async canViewPlainIdCard(): Promise<boolean> {
+    const ctx = getRequestContext();
+    if (!ctx) return false;
+    if (ctx.super) return true;
+    const rows = await this.prisma.client.userRole.findMany({
+      where: { tenantCode: ctx.tenantCode, userId: ctx.userId },
+      select: { roleCode: true },
+    });
+    return rows.some((r) => r.roleCode === 'admin' || r.roleCode === 'qc');
+  }
+
+  private async assertIdCardUnique(idCardNo: string) {
+    const existing = await this.db().findFirst({ where: { idCardNo } });
+    if (existing) {
+      throw new BusinessException(ErrorCodes.ELDER_ID_CARD_EXISTS, '已有档案', HttpStatus.CONFLICT);
+    }
+  }
+
+  /** 待遇有效期须「止 > 起」。 */
+  private assertBenefitRange(benefitStart?: string, benefitEnd?: string) {
+    if (benefitStart && benefitEnd && benefitEnd <= benefitStart) {
+      throw new BadRequestException('待遇有效期止须晚于待遇有效期起');
+    }
+  }
+
+  private async requireExists(id: string): Promise<Record<string, any>> {
+    const existing = await this.findById(id);
+    if (!existing) {
+      throw new BusinessException(ErrorCodes.ELDER_NOT_FOUND, '老人档案不存在', HttpStatus.NOT_FOUND);
+    }
+    return existing;
+  }
+}
--- a/src/prisma/prisma.service.ts
+++ b/src/prisma/prisma.service.ts
@ -5,7 +5,7 @@ import { getRequestContext } from '../common/context/request-context.js';
 /** 不带 tenantCode 的模型（租户表自身）。 */
 const TENANT_FREE = new Set(['Tenant', 'Agency', 'SvcNational', 'SvcLocal', 'SvcMapping', 'LocConfig']);
 /** 软删模型：读操作统一注入 deletedAt IS NULL。 */
-const SOFT_DELETE = new Set(['User', 'Role', 'Resource', 'Org', 'DictType', 'DictItem', 'Config', 'Notice', 'Staff', 'SvcOrg']);
+const SOFT_DELETE = new Set(['User', 'Role', 'Resource', 'Org', 'DictType', 'DictItem', 'Config', 'Notice', 'Staff', 'SvcOrg', 'Elder']);
 const READ_OPS = new Set(['findMany', 'findFirst', 'findUnique', 'count', 'aggregate', 'groupBy']);
 /** 没有 where 子句的操作（create 的租户由 service 在 data 里显式写入）。 */
 const NO_WHERE_OPS = new Set(['create', 'createMany']);
--- a/src/storage/storage.module.ts
+++ b/src/storage/storage.module.ts
@ -0,0 +1,8 @@
+import { Module } from '@nestjs/common';
+import { StorageService } from './storage.service.js';
+
+@Module({
+  providers: [StorageService],
+  exports: [StorageService],
+})
+export class StorageModule {}
--- a/src/storage/storage.service.spec.ts
+++ b/src/storage/storage.service.spec.ts
@ -0,0 +1,20 @@
+import { describe, it, expect, vi } from 'vitest';
+import { StorageService } from './storage.service.js';
+
+describe('StorageService', () => {
+  it('upload 写桶并返回 key', async () => {
+    const putObject = vi.fn().mockResolvedValue({ etag: 'x' });
+    const svc = new StorageService();
+    (svc as any).client = { putObject };
+    (svc as any).bucket = 'carelink';
+    const key = await svc.upload(Buffer.from('x'), 'elder/evidence/a.jpg');
+    expect(putObject).toHaveBeenCalledWith('carelink', 'elder/evidence/a.jpg', expect.any(Buffer), expect.any(Number));
+    expect(key).toBe('elder/evidence/a.jpg');
+  });
+
+  it('buildKey 带租户前缀', () => {
+    const svc = new StorageService();
+    const key = svc.buildKey('T001', 'a.jpg');
+    expect(key).toMatch(/^elder\/T001\/\d+-a\.jpg$/);
+  });
+});
--- a/src/storage/storage.service.ts
+++ b/src/storage/storage.service.ts
@ -0,0 +1,30 @@
+import { Injectable } from '@nestjs/common';
+import { Client } from 'minio';
+
+@Injectable()
+export class StorageService {
+  private readonly client: Client;
+  private readonly bucket: string;
+
+  constructor() {
+    // new Client() 只是构造客户端对象、不建立连接；putObject 时才连。
+    // 测试里直接替换 (svc as any).client / .bucket 为 mock。
+    this.client = new Client({
+      endPoint: process.env.MINIO_ENDPOINT ?? 'localhost',
+      port: Number(process.env.MINIO_PORT ?? 9000),
+      useSSL: false,
+      accessKey: process.env.MINIO_ACCESS_KEY ?? 'minioadmin',
+      secretKey: process.env.MINIO_SECRET_KEY ?? 'minioadmin',
+    });
+    this.bucket = process.env.MINIO_BUCKET ?? 'carelink';
+  }
+
+  buildKey(tenantCode: string, filename: string): string {
+    return `elder/${tenantCode}/${Date.now()}-${filename}`;
+  }
+
+  async upload(buffer: Buffer, key: string): Promise<string> {
+    await this.client.putObject(this.bucket, key, buffer, buffer.length);
+    return key;
+  }
+}
Author	SHA1	Message	Date
liuyun	64c3efd931	fix(c1): elder 日期用 UTC 零点，修复 @db.Date 提前一天的 off-by-one Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-10-14 21:27:26 +08:00
liuyun	a949acbc3b	fix(c1): elder 建档日期字段转 Date 落库（修复 50000） Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-10-14 21:23:21 +08:00
liuyun	0cbdb7f825	fix(c1): elder 十态校验/不可逆态守卫/待遇止>起 + statusLog 单测 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-10-14 17:29:41 +08:00
liuyun	1308675f80	feat(c1): elder 待遇档案模块（建档/状态机/掩码/上传） Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-10-14 17:19:07 +08:00
liuyun	465057cce0	feat(c1): MinIO 存储模块 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-10-14 17:03:12 +08:00
liuyun	f3c775cea9	feat(c1): elder 权限码/错误码/接口资源 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-10-14 16:57:55 +08:00
liuyun	b83c59611c	feat(c1): elder + elder_status_log 数据模型 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>	2026-10-14 16:54:45 +08:00