feat(ui): improve client form modal UX

- Rename tabs: "Basic" → "Basics", "Config" → "Credentials"
- Move reverseTag field from Credentials tab to Basics tab
- Move IP log button inline with limitIp field (tooltip button, edit mode only)
- Hide random email button when editing an existing client
- Add tooltips to totalGB and limitIp fields with descriptive hints
- Rename labels: "Total Sent/Received (GB)" → "Traffic Limit (GB)", "Duration" → "Duration (days)"
- Add renewDays translation key for auto-renew label with unit hint
- Remove redundant filterOption and width style from AutoComplete group selectors
- Update all 15 locale files with new and renamed translation keys

internal/web/translation/zh-TW.json

@@ -637,8 +637,8 @@
       }
     },
     "clients": {
-      "tabBasic": "基本",
-      "tabConfig": "配置",
+      "tabBasics": "基本",
+      "tabCredentials": "認證資訊",
       "add": "新增客戶端",
       "edit": "編輯客戶端",
       "submitAdd": "新增客戶端",
@@ -666,10 +666,11 @@
       "prefix": "前綴",
       "postfix": "後綴",
       "delayedStart": "首次使用後開始",
-      "expireDays": "時長",
+      "expireDays": "時長 (天)",
       "days": "天",
       "renew": "自動續期",
       "renewDesc": "到期後自動續期。(0 = 停用) (單位: 天)",
+      "renewDays": "自動續期 (天)",
       "searchPlaceholder": "搜尋電子郵件、備註、sub ID、UUID、密碼、auth…",
       "filterTitle": "篩選客戶端",
       "clearAllFilters": "清除全部",
@@ -691,10 +692,12 @@
       "hasNot": "不擁有",
       "title": "客戶端",
       "actions": "操作",
-      "totalGB": "總上傳/下載 (GB)",
+      "totalGB": "流量上限 (GB)",
+      "totalGBDesc": "該客戶端的流量配額。0 = 不限制。",
       "expiryTime": "到期時間",
       "addClients": "新增客戶端",
       "limitIp": "IP 限制",
+      "limitIpDesc": "最大同時連線 IP 數。0 = 不限制。",
       "password": "密碼",
       "subId": "訂閱 ID",
       "online": "上線",
@@ -1733,4 +1736,4 @@
       "chooseInbound": "選擇一個入站"
     }
   }
-}
+}