fix(ui): make data source token required in add modal

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components/common/Settings/API/DataSourceAddModal.vue

@@ -298,6 +298,7 @@ function formatMessageCount(count?: number): string {
             <div>
               <label class="mb-1 block text-xs font-medium text-gray-700 dark:text-gray-300">
                 {{ t('settings.api.dataSources.form.token') }}
+                <span class="text-red-500">*</span>
               </label>
               <UInput
                 v-model="formData.token"
@@ -452,7 +453,7 @@ function formatMessageCount(count?: number): string {
             >
               {{ t('settings.api.dataSources.discovery.subscribe', { count: selectedSessionIds.size }) }}
             </UButton>
-            <UButton v-else color="primary" :disabled="!formData.baseUrl" :loading="submitting" @click="handleSubmit">
+            <UButton v-else color="primary" :disabled="!formData.baseUrl || !formData.token" :loading="submitting" @click="handleSubmit">
               {{ t('settings.api.dataSources.addBtn') }}
             </UButton>
           </div>

src/i18n/locales/en-US/settings.json

@@ -518,7 +518,7 @@
         "name": "Name",
         "namePlaceholder": "e.g., My Chat Server",
         "url": "Data Source URL",
-        "token": "Access Token (optional)",
+        "token": "Access Token",
         "tokenPlaceholder": "Bearer Token for the remote API",
         "interval": "Pull Interval (minutes)",
         "pullLimit": "Messages per Pull",

src/i18n/locales/ja-JP/settings.json

@@ -517,7 +517,7 @@
         "name": "名前",
         "namePlaceholder": "例：マイチャットサーバー",
         "url": "データソース URL",
-        "token": "アクセストークン（任意）",
+        "token": "アクセストークン",
         "tokenPlaceholder": "リモート API の Bearer Token",
         "interval": "取得間隔（分）",
         "pullLimit": "1回の取得メッセージ数",

src/i18n/locales/zh-CN/settings.json

@@ -518,7 +518,7 @@
         "name": "名称",
         "namePlaceholder": "例如：我的聊天服务器",
         "url": "数据源 URL",
-        "token": "访问令牌（可选）",
+        "token": "访问令牌",
         "tokenPlaceholder": "远程 API 的 Bearer Token",
         "interval": "拉取间隔（分钟）",
         "pullLimit": "每次拉取消息数",

src/i18n/locales/zh-TW/settings.json

@@ -517,7 +517,7 @@
         "name": "名稱",
         "namePlaceholder": "例如：我的聊天伺服器",
         "url": "資料來源 URL",
-        "token": "存取權杖（可選）",
+        "token": "存取權杖",
         "tokenPlaceholder": "遠端 API 的 Bearer Token",
         "interval": "拉取間隔（分鐘）",
         "pullLimit": "每次拉取訊息數",