🎨 refactor: TokensTable UI for clearer quota info & compact controls

• Display remaining-quota percentage instead of used-quota in the Progress indicator
  - 100 % when quota is untouched, shown in green
  - Warn at ≤ 30 % (yellow) and at ≤ 10 % (red)
  - Hide internal label (`showInfo={false}`) and move the percentage text into the Tooltip
  - Switch Progress `size` to `small` for a lighter visual footprint

• Update Tooltip to list used, remaining, total quota and the new percentage value

• Uniformly set `size="small"` on all header Buttons and Form inputs within the table
  — enhances readability and keeps the main content centered

UI/UX improvement only; no backend logic affected.

web/src/components/table/UsersTable.js

@@ -524,6 +524,7 @@ const UsersTable = () => {
             type='secondary'
             className="w-full md:w-auto"
             onClick={() => setCompactMode(!compactMode)}
+            size="small"
           >
             {compactMode ? t('自适应列表') : t('紧凑列表')}
           </Button>
@@ -541,6 +542,7 @@ const UsersTable = () => {
             onClick={() => {
               setShowAddUser(true);
             }}
+            size="small"
           >
             {t('添加用户')}
           </Button>
@@ -568,6 +570,7 @@ const UsersTable = () => {
                 placeholder={t('支持搜索用户的 ID、用户名、显示名称和邮箱地址')}
                 showClear
                 pure
+                size="small"
               />
             </div>
             <div className="w-full md:w-48">
@@ -585,6 +588,7 @@ const UsersTable = () => {
                 className="w-full"
                 showClear
                 pure
+                size="small"
               />
             </div>
             <div className="flex gap-2 w-full md:w-auto">
@@ -593,6 +597,7 @@ const UsersTable = () => {
                 htmlType="submit"
                 loading={loading || searching}
                 className="flex-1 md:flex-initial md:w-auto"
+                size="small"
               >
                 {t('查询')}
               </Button>
@@ -609,6 +614,7 @@ const UsersTable = () => {
                   }
                 }}
                 className="flex-1 md:flex-initial md:w-auto"
+                size="small"
               >
                 {t('重置')}
               </Button>