테넌트 등록 방식을 결정

adminfront/src/features/users/UserCreatePage.tsx

@@ -1,4 +1,4 @@
-import { useMutation, useQueryClient } from "@tanstack/react-query";
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import type { AxiosError } from "axios";
 import { ArrowLeft, ClipboardCopy, Loader2, Save } from "lucide-react";
 import * as React from "react";
@@ -16,6 +16,7 @@ import { Input } from "../../components/ui/input";
 import { Label } from "../../components/ui/label";
 import {
   createUser,
+  fetchTenants,
   type UserCreateRequest,
   type UserCreateResponse,
 } from "../../lib/adminApi";
@@ -28,6 +29,12 @@ function UserCreatePage() {
   const [createdEmail, setCreatedEmail] = React.useState<string | null>(null);
   const [autoPassword, setAutoPassword] = React.useState(true);
 
+  const { data: tenantsData } = useQuery({
+    queryKey: ["tenants", { limit: 100 }],
+    queryFn: () => fetchTenants(100, 0),
+  });
+  const tenants = tenantsData?.items ?? [];
+
   const {
     register,
     handleSubmit,
@@ -207,12 +214,20 @@ function UserCreatePage() {
 
             <div className="grid gap-4 md:grid-cols-2">
               <div className="space-y-2">
-                <Label htmlFor="companyCode">회사 코드</Label>
-                <Input
-                  id="companyCode"
-                  placeholder="HMAC"
-                  {...register("companyCode")}
-                />
+                <Label htmlFor="companyCode">테넌트 (Tenant)</Label>
+                <div className="relative">
+                                      <select
+                                      id="companyCode"
+                                      className="flex h-9 w-full rounded-md border border-input bg-transparent px-3 py-1 text-sm shadow-sm transition-colors file:border-0 file:bg-transparent file:text-sm file:font-medium placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-ring disabled:cursor-not-allowed disabled:opacity-50"
+                                      {...register("companyCode")}
+                                    >
+                                      <option value="">시스템 전역 (소속 없음)</option>
+                                      {tenants.map((t) => (                      <option key={t.id} value={t.slug}>
+                        {t.name} ({t.slug})
+                      </option>
+                    ))}
+                  </select>
+                </div>
               </div>
 
               <div className="space-y-2">