PUT /api/candidate/profile

行政区划、学校班级、特长类别校验
证件号码唯一性
自动创建资料审核工作流
资料和用户显示名称原子更新

POST /api/candidate/registrations
资料审核状态、报名时间和科目校验
重复报名防护
自动选择负载最低的审批管理员
报名、科目和审批流原子写入

tests/Eis.Infrastructure.Tests/Candidate/RegionCatalogTests.cs

@@ -0,0 +1,20 @@
+using Eis.Infrastructure.Candidate;
+
+namespace Eis.Infrastructure.Tests.Candidate;
+
+public sealed class RegionCatalogTests
+{
+    [Fact]
+    public void ResolvesCodesFromEmbeddedAuthoritativeSnapshot()
+    {
+        var catalog = new RegionCatalog();
+
+        var region = catalog.Resolve("320000", "320700", "320706");
+
+        Assert.NotNull(region);
+        Assert.Equal("江苏省", region.ProvinceName);
+        Assert.Equal("连云港市", region.CityName);
+        Assert.Equal("海州区", region.DistrictName);
+        Assert.Null(catalog.Resolve("320000", "320700", "invalid"));
+    }
+}