本阶段迁移已完成。

Excel：班级、账号、考生、缴费、考场、成绩、志愿、录取、报到及正式录取名册均改为 ClosedXML 原生处理，支持模板、校验、筛选和导入预检。[SystemWorkbook.cs](C:\\Users\\BI\\Documents\\EIS-dotnet\\src\\Eis.Infrastructure\\Spreadsheets\\SystemWorkbook.cs)
文书：录取通知书模板、成绩单/准考证/通知书业务数据与防伪验真已脱离 Node；保留现有前端排版导出效果。[AdminAdmissionService.Documents.cs](C:\\Users\\BI\\Documents\\EIS-dotnet\\src\\Eis.Infrastructure\\Administration\\AdminAdmissionService.Documents.cs)
缓存：完成 Redis 命名空间版本缓存、有界本地回退、请求合并和并发失效保护；公开数据及成绩写入后立即失效。[ApplicationCache.cs](C:\\Users\\BI\\Documents\\EIS-dotnet\\src\\Eis.Infrastructure\\Caching\\ApplicationCache.cs)
迁移清单已更新为完成。[MIGRATION.md](C:\\Users\\BI\\Documents\\EIS-dotnet\\MIGRATION.md)

MIGRATION.md

@@ -14,7 +14,7 @@
 - [x] 考生业务
 - [x] 管理后台、审批流和考务编排
 - [x] 考生志愿填报与招生录取查询
-- [ ] Excel、文书和缓存
+- [x] Excel、文书和缓存
 - [ ] 容器入口切换及 Node.js 后端移除
 
 ## 本地运行
@@ -54,7 +54,14 @@ $env:AUTH_NATIVE_ENABLED = 'true'
 $env:CANDIDATE_NATIVE_ENABLED = 'true'
 ```
 
-管理后台第一至十三批已经覆盖基础读取、组织账户、批量建号、流程定义与收件箱、通知公示、考点审批、报名缴费、考试维护、准考证编排和成绩管理。第十四批补齐指标资格确认、招生学校账号、志愿设置、招生计划审核、分数优先投档、逐轮录取公示、报到补录审批、退档监督和成绩预览提交；管理后台、审批流及考务编排的业务 API 至此全部由 ASP.NET Core 原生处理。Excel 文件解析、文书生成和缓存替换仍作为独立迁移阶段。
+管理后台第一至十三批已经覆盖基础读取、组织账户、批量建号、流程定义与收件箱、通知公示、考点审批、报名缴费、考试维护、准考证编排和成绩管理。第十四批补齐指标资格确认、招生学校账号、志愿设置、招生计划审核、分数优先投档、逐轮录取公示、报到补录审批、退档监督和成绩预览提交；管理后台、审批流及考务编排的业务 API 至此全部由 ASP.NET Core 原生处理。
+
+Excel、文书和缓存阶段已经完成：
+
+- ClosedXML 原生处理班级、管理员、报名号配额及结果、考生、缴费、考点考场、成绩、志愿、录取、报到和正式录取名册工作簿；模板保留必填提示、数据验证、冻结标题、筛选与数值格式。
+- 成绩 Excel 上传先生成预检结果，不直接发布成绩；报到 Excel 只更新本校当前可维护批次，并返回逐行变更摘要。
+- 录取通知书模板由 ASP.NET Core 原生读取与保存；成绩单、准考证和录取通知书继续由现有前端排版导出，但其业务数据、防伪码和验真接口均已脱离 Node.js。
+- 公开首页和考生成绩改用 Redis 命名空间版本缓存；Redis 未配置或暂不可用时使用有界进程内缓存。考试、组织、通知、招生和成绩写入后会立即失效对应命名空间，`GET /health/migration` 会报告缓存状态。
 
 管理端各功能域均可独立切换；在兼容运行期仍要求原生认证和共享 Redis：
 

scripts/smoke-dotnet-migration.ps1

@@ -1111,6 +1111,37 @@ try {
         $resultExport.RawContentLength -lt 1000) {
         throw 'Native result workbook export is invalid'
     }
+    foreach ($excelResource in @('classes', 'class_admins', 'account_quotas', 'candidates', 'payments', 'centers')) {
+        $excelExport = Invoke-WebRequest -Uri "$nativeAuthBaseUrl/api/admin/excel/$excelResource" -WebSession $nativeSession
+        if ($excelExport.Headers['X-EIS-Implementation'] -ne 'aspnet-core' -or
+            $excelExport.Headers['Content-Type'] -notmatch 'spreadsheetml' -or
+            $excelExport.RawContentLength -lt 1000) {
+            throw "Native '$excelResource' workbook export is invalid"
+        }
+    }
+    $accountResultTemplate = Invoke-WebRequest -Uri "$nativeAuthBaseUrl/api/admin/excel/account_results?template=1" -WebSession $nativeSession
+    if ($accountResultTemplate.Headers['X-EIS-Implementation'] -ne 'aspnet-core' -or
+        $accountResultTemplate.Headers['Content-Type'] -notmatch 'spreadsheetml' -or
+        $accountResultTemplate.RawContentLength -lt 1000) {
+        throw "Native 'account_results' workbook template is invalid"
+    }
+    foreach ($ledgerKind in @('preferences', 'placements')) {
+        $ledgerExport = Invoke-WebRequest -Uri "$nativeAuthBaseUrl/api/admin/admissions/$ledgerKind/export" -WebSession $nativeSession
+        if ($ledgerExport.Headers['X-EIS-Implementation'] -ne 'aspnet-core' -or
+            $ledgerExport.Headers['Content-Type'] -notmatch 'spreadsheetml' -or
+            $ledgerExport.RawContentLength -lt 1000) {
+            throw "Native admission '$ledgerKind' ledger workbook export is invalid"
+        }
+    }
+    $admissionSchoolSession = [Microsoft.PowerShell.Commands.WebRequestSession]::new()
+    $admissionSchoolLoginBody = @{ username = 'admission_1_admin'; password = '12345678' } | ConvertTo-Json -Compress
+    Invoke-RestMethod -Uri "$nativeAuthBaseUrl/api/auth/login" -Method Post -ContentType 'application/json' -Body $admissionSchoolLoginBody -WebSession $admissionSchoolSession | Out-Null
+    foreach ($admissionSchoolRoute in @('notice-template', 'reporting', 'placements')) {
+        $admissionSchoolResponse = Invoke-WebRequest -Uri "$nativeAuthBaseUrl/api/admission/$admissionSchoolRoute" -WebSession $admissionSchoolSession
+        if ($admissionSchoolResponse.Headers['X-EIS-Implementation'] -ne 'aspnet-core') {
+            throw "Native admission-school route '$admissionSchoolRoute' did not use ASP.NET Core"
+        }
+    }
     $legacyResultsAfterWrites = Invoke-WebRequest -Uri "$legacyBaseUrl$resultsUri" -WebSession $session
     $nativeResultsAfterWrites = Invoke-WebRequest -Uri "$nativeAuthBaseUrl$resultsUri" -WebSession $nativeSession
     Assert-JsonEquivalent -Expected $legacyResultsAfterWrites.Content -Actual $nativeResultsAfterWrites.Content -Label 'Result writes follow-up'

src/Eis.Application/Administration/IAdminAdmissionService.cs

@@ -17,4 +17,16 @@ public interface IAdminAdmissionService
     Task<AdminEndpointResult> RunActionAsync(string sessionToken, string examId, string action, JsonObject body, CancellationToken cancellationToken);
     Task<AdminEndpointResult> ReviewReportingAsync(string sessionToken, string recordId, JsonObject body, CancellationToken cancellationToken);
     Task<AdminEndpointResult> ReviewWithdrawalAsync(string sessionToken, string placementId, JsonObject body, CancellationToken cancellationToken);
+    Task<AdminEndpointResult> GetAdmissionSchoolNoticeTemplateAsync(string sessionToken, CancellationToken cancellationToken);
+    Task<AdminEndpointResult> SaveAdmissionSchoolNoticeTemplateAsync(string sessionToken, JsonObject body, CancellationToken cancellationToken);
+    Task<AdminEndpointResult> GetAdmissionSchoolReportingAsync(string sessionToken, CancellationToken cancellationToken);
+    Task<AdminDocumentResult> ExportAdmissionSchoolReportingAsync(string sessionToken, string examId, CancellationToken cancellationToken);
+    Task<AdminEndpointResult> ImportAdmissionSchoolReportingAsync(string sessionToken, string examId, byte[] content, CancellationToken cancellationToken);
+    Task<AdminEndpointResult> GetAdmissionSchoolPlacementsAsync(string sessionToken, CancellationToken cancellationToken);
+    Task<AdminDocumentResult> ExportAdmissionSchoolPlacementsAsync(string sessionToken, string examId, CancellationToken cancellationToken);
+    Task<AdminDocumentResult> ExportAdminLedgerAsync(
+        string sessionToken,
+        string kind,
+        IReadOnlyDictionary<string, string> filters,
+        CancellationToken cancellationToken);
 }