feat(auth): 登录多租户选择弹窗 + auth store 登录签名调整

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/api/auth.ts

@@ -1,6 +1,24 @@
 import { http } from '@/api/http'
 import type { ResourceNode } from '@/types/resource'
 
+export interface LoginSuccess {
+  accessToken: string
+  refreshToken: string
+  expiresIn: number
+}
+
+export interface LoginNeedTenant {
+  needSelectTenant: true
+  tenants: { tenantCode: string; tenantName: string }[]
+}
+
+export type LoginResult = LoginSuccess | LoginNeedTenant
+
+/** 登录：缺省 tenantCode 时按用户名自动探测；多租户返回 needSelectTenant。 */
+export function login(username: string, password: string, tenantCode?: string): Promise<LoginResult> {
+  return http.post<LoginResult>('/auth/login', { username, password, ...(tenantCode ? { tenantCode } : {}) })
+}
+
 /** 当前用户菜单树。 */
 export function fetchMenus(): Promise<ResourceNode[]> {
   return http.get<ResourceNode[]>('/auth/menus')

src/pages/login/index.vue

@@ -101,6 +101,20 @@ meta:
         </div>
       </div>
     </div>
+
+    <el-dialog v-model="tenantDialogVisible" title="选择登录租户" width="360px" :close-on-click-modal="false">
+      <div class="login__tenants">
+        <div
+          v-for="t in tenantOptions"
+          :key="t.tenantCode"
+          class="login__tenant-item"
+          @click="selectTenant(t.tenantCode)"
+        >
+          <span>{{ t.tenantName }}</span>
+          <span class="login__tenant-code">{{ t.tenantCode }}</span>
+        </div>
+      </div>
+    </el-dialog>
   </div>
 </template>
 
@@ -136,6 +150,8 @@ const captcha = ref('')
 const captchaCode = ref('')
 const remember = ref(true)
 const error = ref('')
+const tenantOptions = ref<{ tenantCode: string; tenantName: string }[]>([])
+const tenantDialogVisible = ref(false)
 
 const rootStyle = computed(() => (config.background ? { background: config.background } : {}))
 
@@ -173,11 +189,16 @@ function refreshCaptcha(): void {
 refreshCaptcha()
 
 const { loading, run: doLogin } = useRequest(
-  () => auth.login(config.tenantCode, model.username, model.password),
+  () => auth.login(model.username, model.password),
   {
     manual: true,
-    onSuccess: () => {
+    onSuccess: (data) => {
+      if (data && 'needSelectTenant' in data && data.needSelectTenant) {
+        tenantOptions.value = data.tenants
+        tenantDialogVisible.value = true
+      } else {
         router.push(config.homePath)
+      }
     },
     onError: (e) => {
       error.value = (e as Error).message
@@ -185,6 +206,16 @@ const { loading, run: doLogin } = useRequest(
   },
 )
 
+async function selectTenant(tenantCode: string): Promise<void> {
+  tenantDialogVisible.value = false
+  try {
+    await auth.login(model.username, model.password, tenantCode)
+    router.push(config.homePath)
+  } catch (e) {
+    error.value = (e as Error).message
+  }
+}
+
 async function onSubmit(): Promise<void> {
   if (loading.value) return
   error.value = ''
@@ -355,6 +386,25 @@ function onRegister(): void {
   color: var(--el-color-danger);
 }
 
+/* ---------- 租户选择 ---------- */
+.login__tenants {
+  @apply flex flex-col gap-2;
+}
+
+.login__tenant-item {
+  @apply flex cursor-pointer items-center justify-between rounded-base border border-solid px-4 py-3 transition-colors;
+  border-color: var(--wm-border-color-light);
+
+  &:hover {
+    @apply border-primary;
+    background: var(--el-color-primary-light-9);
+  }
+}
+
+.login__tenant-code {
+  @apply text-xs text-text-secondary;
+}
+
 /* ---------- 卡片布局（card） ---------- */
 .login__panel-head {
   @apply mb-lg text-center;

src/stores/modules/auth.ts

@@ -1,6 +1,7 @@
 import { computed, ref } from 'vue';
 import { defineStore } from 'pinia';
 import { http } from '@/api/http';
+import { login as loginApi, type LoginResult } from '@/api/auth';
 import { clearTokens, getAccessToken, getRefreshToken, setTokens } from '@/utils/token';
 
 export const useAuthStore = defineStore('authStore', () => {
@@ -9,16 +10,15 @@ export const useAuthStore = defineStore('authStore', () => {
 
   const isAuthenticated = computed(() => !!accessToken.value);
 
-  async function login(tenantCode: string, username: string, password: string): Promise<void> {
+  async function login(username: string, password: string, tenantCode?: string): Promise<LoginResult> {
-    const data = await http.post<{ accessToken: string; refreshToken: string }>('/auth/login', {
+    const data = await loginApi(username, password, tenantCode);
-      tenantCode,
+    if ('accessToken' in data) {
-      username,
-      password,
-    });
       setTokens(data.accessToken, data.refreshToken);
       accessToken.value = data.accessToken;
       refreshToken.value = data.refreshToken;
     }
+    return data;
+  }
 
   async function logout(): Promise<void> {
     const rt = refreshToken.value;