fix(mobile): 登录页医院选择始终显示+加载提示

healthlink-his-mobile/src/views/Login.vue

@@ -14,12 +14,13 @@
         <label>密码</label>
         <input v-model="form.password" type="password" placeholder="请输入密码" class="input" @keyup.enter="handleLogin" />
       </div>
-      <div class="form-item" v-if="tenantOptions.length > 0">
+      <div class="form-item">
         <label>医院/租户</label>
         <select v-model="form.tenantId" class="input" @change="onTenantChange">
           <option value="">请选择医院</option>
           <option v-for="t in tenantOptions" :key="t.value" :value="t.value">{{ t.label }}</option>
         </select>
+        <div v-if="tenantOptions.length === 0 && form.username" class="loading-text">加载医院列表中...</div>
       </div>
       <button class="login-btn" @click="handleLogin" :disabled="loading">{{ loading ? '登录中...' : '登 录' }}</button>
       <div v-if="errorMsg" class="error-msg">{{ errorMsg }}</div>
@@ -109,4 +110,5 @@ select.input { appearance: none; background: #fff url("data:image/svg+xml,%3Csvg
 .login-btn { width: 100%; padding: 14px; background: #1890ff; color: #fff; border: none; border-radius: 8px; font-size: 18px; font-weight: 600; cursor: pointer; }
 .login-btn:disabled { background: #91d5ff; }
 .error-msg { color: #f5222d; text-align: center; margin-top: 12px; font-size: 14px; }
+.loading-text { color: #999; font-size: 12px; margin-top: 4px; }
 </style>