本批迁移已完成：

原生化后台只读接口：GET /api/admin/candidates
GET /api/admin/registrations
GET /api/admin/payments

保持超级、校级、班级管理员的数据范围一致。
保持证件号脱敏、审批流、考试科目、缴费信息及座位号前导零兼容。
新增灰度开关：ADMIN_NATIVE_OPERATIONAL_READS_ENABLED=true
归档、审核、缴费更新等写操作暂时继续转发 Node。

src/Eis.Web/Administration/NativeAdminReadEndpoints.cs

@@ -91,6 +91,16 @@ public static class NativeAdminReadEndpoints
             endpoints.MapPatch("/api/admin/center-change-requests/{changeRequestId}", (HttpContext context, string changeRequestId, JsonObject body, IAdminCenterService service, CancellationToken cancellationToken) =>
                 Execute(context, service.ReviewAsync(Token(context), changeRequestId, body, cancellationToken)));
         }
+
+        if (options.NativeOperationalReadsEnabled)
+        {
+            endpoints.MapGet("/api/admin/candidates", (HttpContext context, IAdminOperationalReadService service, CancellationToken cancellationToken) =>
+                Execute(context, service.GetCandidatesAsync(Token(context), cancellationToken)));
+            endpoints.MapGet("/api/admin/registrations", (HttpContext context, IAdminOperationalReadService service, CancellationToken cancellationToken) =>
+                Execute(context, service.GetRegistrationsAsync(Token(context), cancellationToken)));
+            endpoints.MapGet("/api/admin/payments", (HttpContext context, IAdminOperationalReadService service, CancellationToken cancellationToken) =>
+                Execute(context, service.GetPaymentsAsync(Token(context), cancellationToken)));
+        }
         return endpoints;
     }