fix(adminfront): guard employee ID metadata in GPO priority swap

adminfront/src/features/users/utils/generalPlanningOfficePriority.test.ts

@@ -0,0 +1,104 @@
+import type { BulkUserItem, TenantSummary } from "../../../lib/adminApi";
+import { applyGeneralPlanningOfficePriority } from "./generalPlanningOfficePriority";
+
+function tenant(
+  id: string,
+  name: string,
+  slug: string,
+  parentId?: string,
+): TenantSummary {
+  return {
+    id,
+    type: "COMPANY",
+    name,
+    slug,
+    description: "",
+    status: "active",
+    parentId,
+    memberCount: 0,
+    createdAt: "",
+    updatedAt: "",
+  };
+}
+
+describe("applyGeneralPlanningOfficePriority", () => {
+  it("promotes the general planning office appointment and preserves string employee IDs", () => {
+    const user: BulkUserItem = {
+      email: "dual@test.com",
+      name: "Dual User",
+      tenantSlug: "hanmac-tech",
+      department: "개발팀",
+      grade: "책임",
+      position: "팀장",
+      jobTitle: "Backend",
+      metadata: {
+        employee_id: "EMP001",
+      },
+      additionalAppointments: [
+        {
+          tenantSlug: "planning-team",
+          tenantName: "경영기획팀",
+          department: "센터",
+          grade: "수석",
+          jobTitle: "Architecture",
+          metadata: {
+            employee_id: "EMP002",
+          },
+        },
+      ],
+    };
+
+    const result = applyGeneralPlanningOfficePriority(user, [
+      tenant("gpo", "총괄기획실", "gpo"),
+      tenant("planning", "경영기획팀", "planning-team", "gpo"),
+      tenant("tech", "한맥기술", "hanmac-tech"),
+    ]);
+
+    expect(result.tenantSlug).toBe("planning-team");
+    expect(result.department).toBe("센터");
+    expect(result.grade).toBe("수석");
+    expect(result.jobTitle).toBe("Architecture");
+    expect(result.metadata.employee_id).toBe("EMP002");
+    expect(result.additionalAppointments?.[0]).toMatchObject({
+      tenantSlug: "hanmac-tech",
+      department: "개발팀",
+      grade: "책임",
+      position: "팀장",
+      jobTitle: "Backend",
+      metadata: {
+        employee_id: "EMP001",
+      },
+    });
+  });
+
+  it("does not write non-string employee IDs into string metadata", () => {
+    const user: BulkUserItem = {
+      email: "dual@test.com",
+      name: "Dual User",
+      tenantSlug: "hanmac-tech",
+      metadata: {
+        employee_id: "EMP001",
+      },
+      additionalAppointments: [
+        {
+          tenantSlug: "gpo",
+          tenantName: "총괄기획실",
+          metadata: {
+            employee_id: 1002,
+          },
+        },
+      ],
+    };
+
+    const result = applyGeneralPlanningOfficePriority(user, [
+      tenant("gpo", "총괄기획실", "gpo"),
+      tenant("tech", "한맥기술", "hanmac-tech"),
+    ]);
+
+    expect(result.tenantSlug).toBe("gpo");
+    expect(result.metadata.employee_id).toBeUndefined();
+    expect(result.additionalAppointments?.[0].metadata).toMatchObject({
+      employee_id: "EMP001",
+    });
+  });
+});