From 218e9388d2acd9e241bbab73eeb5e923e5529f82 Mon Sep 17 00:00:00 2001
From: Syngnat <yangguofeng919@gmail.com>
Date: Sun, 2 Aug 2026 12:43:02 +0800
Subject: [PATCH] =?UTF-8?q?=F0=9F=8E=A8=20style(theme):=20=E5=AF=B9?=
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- 主内容区与侧栏统一 panel-2，消除表概览空白区色差
- 查询工具栏保存按钮改为 default 图标样式，提升暗色可读性
- 表概览时间格式化为 YYYY-MM-DD HH:mm:ss，保留小数秒
- 补充多语言文案与相关测试
---
 frontend/package.json.md5                     |   2 +-
 .../src/components/QueryEditorToolbar.tsx     |   4 +-
 .../TableOverview.tdengine.test.tsx           |   1 +
 frontend/src/components/TableOverview.tsx     | 133 ++++++---
 .../src/components/sidebar/sidebarHelpers.ts  |  36 ++-
 frontend/src/hooks/useAppUtilityStyles.tsx    |   6 +-
 frontend/src/styles/v2-theme-workbench.css    | 187 +++++++++++-
 frontend/src/utils/customThemePresets.test.ts |   5 +
 frontend/src/utils/customThemePresets.ts      |  39 ++-
 frontend/src/v2-theme.css                     | 276 ++++++++++++++----
 shared/i18n/de-DE.json                        |  20 +-
 shared/i18n/en-US.json                        |  20 +-
 shared/i18n/ja-JP.json                        |  20 +-
 shared/i18n/ru-RU.json                        |  20 +-
 shared/i18n/zh-CN.json                        |  20 +-
 shared/i18n/zh-TW.json                        |  20 +-
 16 files changed, 674 insertions(+), 135 deletions(-)

diff --git a/frontend/package.json.md5 b/frontend/package.json.md5
index 0a3c8755..544c423d 100755
--- a/frontend/package.json.md5
+++ b/frontend/package.json.md5
@@ -1 +1 @@
-83b4b7d166ed9172beba2d6236382c0b
\ No newline at end of file
+339d5c974e6ab5cba2d5def171f5ce0a
\ No newline at end of file
diff --git a/frontend/src/components/QueryEditorToolbar.tsx b/frontend/src/components/QueryEditorToolbar.tsx
index 131bfdf7..4c127cc0 100644
--- a/frontend/src/components/QueryEditorToolbar.tsx
+++ b/frontend/src/components/QueryEditorToolbar.tsx
@@ -557,7 +557,9 @@ const QueryEditorToolbar: React.FC<QueryEditorToolbarProps> = ({
           <Button
             aria-label={t("query_editor.action.save")}
             className={isV2Ui ? "gn-v2-query-toolbar-icon-action gn-v2-query-toolbar-save-action" : undefined}
-            type="primary"
+            /* v2 与终端等工具按钮同族（default），避免 primary 的 on-accent 前景在暗色下发脏绿；
+               可读性靠 CSS 把图标提到 fg-1。legacy 仍用 primary 实心按钮。 */
+            type={isV2Ui ? "default" : "primary"}
             icon={<SaveOutlined />}
             onClick={onQuickSave}
           >
diff --git a/frontend/src/components/TableOverview.tdengine.test.tsx b/frontend/src/components/TableOverview.tdengine.test.tsx
index 19e547de..d1ec9d17 100644
--- a/frontend/src/components/TableOverview.tdengine.test.tsx
+++ b/frontend/src/components/TableOverview.tdengine.test.tsx
@@ -588,6 +588,7 @@ describe('TableOverview metadata compatibility', () => {
     const renderedText = collectText(renderer!.toJSON());
     expect(renderedText).toContain('orders');
     expect(renderedText).toContain('订单表');
+    // 展示统一为 YYYY-MM-DD HH:mm:ss（有小数秒时保留，与侧栏 formatSidebarTableTimestamp 一致）
     expect(renderedText).toContain('2026-06-02 10:30:00');
     expect(renderedText).toContain('2026-05-01 09:00:00');
   });
diff --git a/frontend/src/components/TableOverview.tsx b/frontend/src/components/TableOverview.tsx
index f14b8502..b042ae00 100644
--- a/frontend/src/components/TableOverview.tsx
+++ b/frontend/src/components/TableOverview.tsx
@@ -32,6 +32,7 @@ import { extractTableNameFromMetadataRow } from '../utils/tableMetadataRows';
 import { V2TableContextMenuView, type V2TableContextMenuActionKey } from './V2TableContextMenu';
 import { confirmCopyTable } from './tableCopyAction';
 import { APP_POPUP_Z_INDEX } from '../utils/overlayZIndex';
+import { formatSidebarTableTimestamp } from './sidebar/sidebarHelpers';
 
 interface TableOverviewProps {
     tab: TabData;
@@ -816,14 +817,15 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
     }, [addAIContext, buildConfig, connection?.id, setAIPanelVisible, tab.dbName]);
 
     // --- Theme ---
-    const cardBg = darkMode ? 'rgba(255,255,255,0.04)' : 'rgba(0,0,0,0.02)';
+    // v2 背景/边框/强调色交给 CSS token（跟自定义主题）；legacy 仍用 darkMode 近似色。
+    const cardBg = isV2Ui ? undefined : (darkMode ? 'rgba(255,255,255,0.04)' : 'rgba(0,0,0,0.02)');
     const cardHoverBg = darkMode ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.04)';
-    const cardBorder = darkMode ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.06)';
-    const textPrimary = darkMode ? 'rgba(255,255,255,0.88)' : 'rgba(0,0,0,0.88)';
-    const textSecondary = darkMode ? 'rgba(255,255,255,0.55)' : 'rgba(0,0,0,0.55)';
-    const textMuted = darkMode ? 'rgba(255,255,255,0.35)' : 'rgba(0,0,0,0.35)';
-    const accentColor = '#1677ff';
-    const containerBg = darkMode ? 'rgba(0,0,0,0.15)' : 'rgba(0,0,0,0.01)';
+    const cardBorder = isV2Ui ? undefined : (darkMode ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.06)');
+    const textPrimary = isV2Ui ? 'var(--gn-fg-1)' : (darkMode ? 'rgba(255,255,255,0.88)' : 'rgba(0,0,0,0.88)');
+    const textSecondary = isV2Ui ? 'var(--gn-fg-3)' : (darkMode ? 'rgba(255,255,255,0.55)' : 'rgba(0,0,0,0.55)');
+    const textMuted = isV2Ui ? 'var(--gn-fg-4)' : (darkMode ? 'rgba(255,255,255,0.35)' : 'rgba(0,0,0,0.35)');
+    const accentColor = isV2Ui ? 'var(--gn-accent)' : '#1677ff';
+    const containerBg = isV2Ui ? undefined : (darkMode ? 'rgba(0,0,0,0.15)' : 'rgba(0,0,0,0.01)');
 
     const toggleSort = (field: SortField) => {
         if (sortField === field) {
@@ -1065,17 +1067,24 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
         );
     };
 
+    const formatOverviewTimestamp = useCallback((value?: string): string => {
+        if (!value) return '';
+        return formatSidebarTableTimestamp(value) || value;
+    }, []);
+
     const renderTableOverviewMetaBadges = useCallback((table: TableStatRow, compact = false) => {
         const items = [
             ...(table.updateTime ? [{
                 key: 'updated',
                 label: t('table_overview.metric.updated_at'),
-                value: table.updateTime,
+                raw: table.updateTime,
+                value: formatOverviewTimestamp(table.updateTime),
             }] : []),
             ...(table.createTime ? [{
                 key: 'created',
                 label: t('table_overview.metric.created_at'),
-                value: table.createTime,
+                raw: table.createTime,
+                value: formatOverviewTimestamp(table.createTime),
             }] : []),
         ];
         if (items.length === 0) return null;
@@ -1090,7 +1099,7 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                 }}
             >
                 {items.map((item) => (
-                    <Tooltip key={item.key} title={`${item.label}: ${item.value}`} mouseEnterDelay={0.4}>
+                    <Tooltip key={item.key} title={`${item.label}: ${item.raw}`} mouseEnterDelay={0.4}>
                         <span
                             style={{
                                 display: 'inline-flex',
@@ -1099,7 +1108,9 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                                 maxWidth: '100%',
                                 padding: compact ? '1px 7px' : '2px 8px',
                                 borderRadius: 999,
-                                background: darkMode ? 'rgba(255,255,255,0.06)' : 'rgba(0,0,0,0.04)',
+                                background: isV2Ui
+                                    ? 'var(--gn-bg-active)'
+                                    : (darkMode ? 'rgba(255,255,255,0.06)' : 'rgba(0,0,0,0.04)'),
                                 color: textSecondary,
                                 fontSize: compact ? 10 : 11,
                                 lineHeight: compact ? '16px' : '18px',
@@ -1115,7 +1126,7 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                 ))}
             </div>
         );
-    }, [darkMode, t, textPrimary, textSecondary]);
+    }, [darkMode, formatOverviewTimestamp, isV2Ui, t, textPrimary, textSecondary]);
 
     const renderCardTableContent = (table: TableStatRow) => (
         <div
@@ -1123,8 +1134,10 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
             onDoubleClick={() => openTableByDefaultAction(table.name)}
             onContextMenu={isV2Ui ? (event) => openV2OverviewContextMenu(event, table) : undefined}
             style={{
-                background: cardBg,
-                border: `1px solid ${cardBorder}`,
+                ...(isV2Ui ? {} : {
+                    background: cardBg,
+                    border: `1px solid ${cardBorder}`,
+                }),
                 borderRadius: 10,
                 padding: '14px 16px',
                 cursor: 'pointer',
@@ -1132,7 +1145,7 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                 userSelect: 'none',
             }}
             onMouseEnter={isV2Ui ? undefined : e => { (e.currentTarget as HTMLDivElement).style.background = cardHoverBg; (e.currentTarget as HTMLDivElement).style.borderColor = accentColor; }}
-            onMouseLeave={isV2Ui ? undefined : e => { (e.currentTarget as HTMLDivElement).style.background = cardBg; (e.currentTarget as HTMLDivElement).style.borderColor = cardBorder; }}
+            onMouseLeave={isV2Ui ? undefined : e => { (e.currentTarget as HTMLDivElement).style.background = cardBg || ''; (e.currentTarget as HTMLDivElement).style.borderColor = cardBorder || ''; }}
         >
             <div className={isV2Ui ? 'gn-v2-table-card-name' : undefined} style={{ display: 'flex', alignItems: 'center', gap: 8, marginBottom: 8 }}>
                 <TableOutlined style={{ fontSize: 14, color: accentColor }} />
@@ -1182,7 +1195,9 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
         const combinedSize = getCombinedTableSize(table);
         const sizeRatio = maxCombinedSize > 0 && hasKnownTableSize(table) ? combinedSize / maxCombinedSize : 0;
         const fillWidth = maxCombinedSize > 0 && hasKnownTableSize(table) ? `${Math.max(10, Math.round(sizeRatio * 100))}%` : '0%';
-        const fillColor = darkMode ? 'rgba(22,119,255,0.18)' : 'rgba(22,119,255,0.12)';
+        const fillColor = isV2Ui
+            ? 'var(--gn-accent-soft, rgba(34, 197, 94, 0.16))'
+            : (darkMode ? 'rgba(22,119,255,0.18)' : 'rgba(22,119,255,0.12)');
         const rowSecondary = table.comment || (table.engine
             ? t('table_overview.row.engine_table', { engine: table.engine })
             : t('table_overview.row.open_hint'));
@@ -1195,15 +1210,17 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                     style={{
                         position: 'relative',
                         overflow: 'hidden',
-                        borderRadius: 10,
-                        border: `1px solid ${cardBorder}`,
-                        background: cardBg,
+                        borderRadius: isV2Ui ? undefined : 10,
+                        ...(isV2Ui ? {} : {
+                            border: `1px solid ${cardBorder}`,
+                            background: cardBg,
+                        }),
                         cursor: 'pointer',
                         transition: isV2Ui ? undefined : 'all 0.15s ease',
                         userSelect: 'none',
                     }}
                     onMouseEnter={isV2Ui ? undefined : e => { (e.currentTarget as HTMLDivElement).style.background = cardHoverBg; (e.currentTarget as HTMLDivElement).style.borderColor = accentColor; }}
-                    onMouseLeave={isV2Ui ? undefined : e => { (e.currentTarget as HTMLDivElement).style.background = cardBg; (e.currentTarget as HTMLDivElement).style.borderColor = cardBorder; }}
+                    onMouseLeave={isV2Ui ? undefined : e => { (e.currentTarget as HTMLDivElement).style.background = cardBg || ''; (e.currentTarget as HTMLDivElement).style.borderColor = cardBorder || ''; }}
                 >
                     <div
                         style={{
@@ -1244,7 +1261,9 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                                             borderRadius: 999,
                                             fontSize: 11,
                                             color: textMuted,
-                                            background: darkMode ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.04)',
+                                            background: isV2Ui
+                                                ? 'var(--gn-bg-active)'
+                                                : (darkMode ? 'rgba(255,255,255,0.08)' : 'rgba(0,0,0,0.04)'),
                                         }}
                                     >
                                         {table.engine}
@@ -1379,11 +1398,16 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                     alignItems: 'center',
                     minWidth: 1120,
                     minHeight: 32,
-                    borderBottom: `1px solid ${cardBorder}`,
-                    background: cardBg,
-                    color: textPrimary,
-                    cursor: 'pointer',
-                    userSelect: 'none',
+                    ...(isV2Ui ? {
+                        cursor: 'pointer',
+                        userSelect: 'none',
+                    } : {
+                        borderBottom: `1px solid ${cardBorder}`,
+                        background: cardBg,
+                        color: textPrimary,
+                        cursor: 'pointer',
+                        userSelect: 'none',
+                    }),
                 }}
             >
                 <div className="gn-table-overview-compact-name" role="cell" title={table.name}>
@@ -1395,8 +1419,20 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                 <div className="gn-table-overview-compact-cell gn-table-overview-compact-number" role="cell" title={table.dataSize >= 0 ? String(table.dataSize) : undefined}>{formatSize(table.dataSize)}</div>
                 <div className="gn-table-overview-compact-cell gn-table-overview-compact-number" role="cell" title={table.indexSize >= 0 ? String(table.indexSize) : undefined}>{formatSize(table.indexSize)}</div>
                 <div className="gn-table-overview-compact-cell" role="cell" title={table.engine || undefined}>{table.engine || '—'}</div>
-                <div className="gn-table-overview-compact-cell" role="cell" title={table.updateTime || undefined}>{table.updateTime || '—'}</div>
-                <div className="gn-table-overview-compact-cell" role="cell" title={table.createTime || undefined}>{table.createTime || '—'}</div>
+                <div
+                    className="gn-table-overview-compact-cell"
+                    role="cell"
+                    title={table.updateTime || undefined}
+                >
+                    {table.updateTime ? formatOverviewTimestamp(table.updateTime) : '—'}
+                </div>
+                <div
+                    className="gn-table-overview-compact-cell"
+                    role="cell"
+                    title={table.createTime || undefined}
+                >
+                    {table.createTime ? formatOverviewTimestamp(table.createTime) : '—'}
+                </div>
             </div>
         );
 
@@ -1422,6 +1458,12 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
         );
     }
 
+    const viewSwitchBtnClass = (mode: ViewMode) => (
+        isV2Ui
+            ? `gn-v2-table-overview-view-switch-btn${viewMode === mode ? ' is-active' : ''}`
+            : undefined
+    );
+
     return (
         <div className={isV2Ui ? 'gn-table-overview gn-v2-table-overview' : 'gn-table-overview'} style={{ display: 'flex', flexDirection: 'column', height: '100%', background: containerBg, overflow: 'hidden' }}>
             {/* Toolbar */}
@@ -1447,15 +1489,19 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                 <Dropdown menu={{ items: sortMenuItems }} trigger={['click']}>
                     <Tooltip title={t('table_overview.tooltip.sort')}><SortAscendingOutlined style={{ fontSize: 16, color: textSecondary, cursor: 'pointer' }} /></Tooltip>
                 </Dropdown>
-                <div style={{ display: 'flex', gap: 2, padding: 2, borderRadius: 6, background: darkMode ? 'rgba(255,255,255,0.06)' : 'rgba(0,0,0,0.04)' }}>
+                <div
+                    className={isV2Ui ? 'gn-v2-table-overview-view-switch' : undefined}
+                    style={isV2Ui ? undefined : { display: 'flex', gap: 2, padding: 2, borderRadius: 6, background: darkMode ? 'rgba(255,255,255,0.06)' : 'rgba(0,0,0,0.04)' }}
+                >
                     <Tooltip title={t('table_overview.tooltip.card_view')}>
                         <button
                             type="button"
+                            className={viewSwitchBtnClass('card')}
                             data-table-overview-view-mode="card"
                             aria-label={t('table_overview.tooltip.card_view')}
                             aria-pressed={viewMode === 'card'}
                             onClick={() => setViewMode('card')}
-                            style={{
+                            style={isV2Ui ? undefined : {
                                 width: 28, height: 24, padding: 0, border: 0, borderRadius: 5, cursor: 'pointer', transition: 'all 0.15s',
                                 display: 'inline-flex', alignItems: 'center', justifyContent: 'center', font: 'inherit',
                                 background: viewMode === 'card' ? (darkMode ? 'rgba(255,255,255,0.12)' : '#fff') : 'transparent',
@@ -1469,11 +1515,12 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                     <Tooltip title={t('table_overview.tooltip.list_view')}>
                         <button
                             type="button"
+                            className={viewSwitchBtnClass('list')}
                             data-table-overview-view-mode="list"
                             aria-label={t('table_overview.tooltip.list_view')}
                             aria-pressed={viewMode === 'list'}
                             onClick={() => setViewMode('list')}
-                            style={{
+                            style={isV2Ui ? undefined : {
                                 width: 28, height: 24, padding: 0, border: 0, borderRadius: 5, cursor: 'pointer', transition: 'all 0.15s',
                                 display: 'inline-flex', alignItems: 'center', justifyContent: 'center', font: 'inherit',
                                 background: viewMode === 'list' ? (darkMode ? 'rgba(255,255,255,0.12)' : '#fff') : 'transparent',
@@ -1487,11 +1534,12 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                     <Tooltip title={t('table_overview.tooltip.table_view')}>
                         <button
                             type="button"
+                            className={viewSwitchBtnClass('table')}
                             data-table-overview-view-mode="table"
                             aria-label={t('table_overview.tooltip.table_view')}
                             aria-pressed={viewMode === 'table'}
                             onClick={() => setViewMode('table')}
-                            style={{
+                            style={isV2Ui ? undefined : {
                                 width: 28, height: 24, padding: 0, border: 0, borderRadius: 5, cursor: 'pointer', transition: 'all 0.15s',
                                 display: 'inline-flex', alignItems: 'center', justifyContent: 'center', font: 'inherit',
                                 background: viewMode === 'table' ? (darkMode ? 'rgba(255,255,255,0.12)' : '#fff') : 'transparent',
@@ -1509,7 +1557,11 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
             {/* Content Area */}
             <div
                 className={isV2Ui ? 'gn-v2-table-overview-content' : undefined}
-                style={{
+                data-view-mode={isV2Ui ? viewMode : undefined}
+                style={isV2Ui ? {
+                    flex: 1,
+                    minHeight: 0,
+                } : {
                     flex: 1,
                     minHeight: 0,
                     overflow: viewMode === 'table' ? 'hidden' : 'auto',
@@ -1520,7 +1572,15 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
             >
                 {sortedFiltered.length > 0 && (isSearchPending || visibleOverview.hiddenCount > 0 || deferredSearchText.trim()) && (
                     <div
-                        style={{
+                        className={isV2Ui ? 'gn-v2-table-overview-filter-bar' : undefined}
+                        style={isV2Ui ? {
+                            display: 'flex',
+                            alignItems: 'center',
+                            justifyContent: 'space-between',
+                            gap: 12,
+                            fontSize: 12,
+                            flexShrink: 0,
+                        } : {
                             display: 'flex',
                             alignItems: 'center',
                             justifyContent: 'space-between',
@@ -1581,7 +1641,10 @@ const TableOverview: React.FC<TableOverviewProps> = ({ tab }) => {
                                         {section.rows.map(renderCardTable)}
                                     </div>
                                 ) : (
-                                    <div className={isV2Ui ? 'gn-v2-table-row-list' : undefined} style={{ display: 'flex', flexDirection: 'column', gap: 10 }}>
+                                    <div
+                                        className={isV2Ui ? 'gn-v2-table-row-list' : undefined}
+                                        style={{ display: 'flex', flexDirection: 'column', gap: isV2Ui ? 0 : 10 }}
+                                    >
                                         {section.rows.map(renderListTable)}
                                     </div>
                                 )}
diff --git a/frontend/src/components/sidebar/sidebarHelpers.ts b/frontend/src/components/sidebar/sidebarHelpers.ts
index 6812362a..818dc3f3 100644
--- a/frontend/src/components/sidebar/sidebarHelpers.ts
+++ b/frontend/src/components/sidebar/sidebarHelpers.ts
@@ -54,18 +54,36 @@ export const formatSidebarTableSize = (bytes: number): string => {
 const padSidebarTimestampPart = (value: number): string => String(value).padStart(2, '0');
 
 /**
- * formatSidebarTableTimestamp 把数据库返回的时间值统一压缩成 `YYYY-MM-DD HH:mm`。
- * 若值无法被 Date 可靠解析，则尽量保留原始文本的可读部分。
+ * formatSidebarTableTimestamp 把数据库返回的时间值格式化为
+ * `YYYY-MM-DD HH:mm:ss`；若源值带小数秒（毫秒/微秒），则原样保留小数部分。
+ * 例：
+ *   2026-04-26T18:06:08+08:00     → 2026-04-26 18:06:08
+ *   2026-05-10T09:12:33.456+08:00 → 2026-05-10 09:12:33.456
+ * 若无法被 Date 可靠解析，则尽量保留原始文本的可读部分。
  */
 export const formatSidebarTableTimestamp = (value: unknown): string => {
   const text = String(value ?? '').trim();
   if (!text) return '';
-  const normalizedText = text.replace('T', ' ').replace(/\.\d+$/, '');
+
+  // 优先用正则剥离时区，保留秒与小数秒（避免 Date 丢弃微秒精度）
+  const match = text.match(
+    /^(\d{4}-\d{2}-\d{2})[T ](\d{2}:\d{2}:\d{2})(\.\d+)?(?:\s*(?:Z|[+-]\d{2}:?\d{2})(?:\s+[A-Za-z_\/+-]+)?)?$/i,
+  );
+  if (match) {
+    return `${match[1]} ${match[2]}${match[3] || ''}`;
+  }
+
   const parsed = new Date(text);
   if (Number.isNaN(parsed.getTime())) {
-    return normalizedText.length > 16 ? normalizedText.slice(0, 16) : normalizedText;
+    // 无法解析时去掉 T/时区噪音，尽量给出可读截断
+    const fallback = text
+      .replace('T', ' ')
+      .replace(/([+-]\d{2}:?\d{2}|Z)\s*$/i, '')
+      .trim();
+    return fallback.length > 23 ? fallback.slice(0, 23) : fallback;
   }
-  return [
+
+  const base = [
     parsed.getFullYear(),
     '-',
     padSidebarTimestampPart(parsed.getMonth() + 1),
@@ -75,7 +93,15 @@ export const formatSidebarTableTimestamp = (value: unknown): string => {
     padSidebarTimestampPart(parsed.getHours()),
     ':',
     padSidebarTimestampPart(parsed.getMinutes()),
+    ':',
+    padSidebarTimestampPart(parsed.getSeconds()),
   ].join('');
+
+  const ms = parsed.getMilliseconds();
+  if (ms > 0) {
+    return `${base}.${String(ms).padStart(3, '0')}`;
+  }
+  return base;
 };
 
 export interface SidebarTableMetadataDisplayItem {
diff --git a/frontend/src/hooks/useAppUtilityStyles.tsx b/frontend/src/hooks/useAppUtilityStyles.tsx
index c5d356c2..82cadd3f 100644
--- a/frontend/src/hooks/useAppUtilityStyles.tsx
+++ b/frontend/src/hooks/useAppUtilityStyles.tsx
@@ -34,8 +34,10 @@ export const useAppUtilityStyles = ({
     return `rgba(${r}, ${g}, ${b}, ${effectiveOpacity})`;
   };
 
-  const bgMain = getBg('#141414');
-  const bgContent = getBg('#1d1d1d');
+  // v2 / 自定义主题：走 CSS token，主内容与 sider 同为 panel-2，避免并排色差。
+  // legacy 仍用 getBg 做透明度混合。
+  const bgMain = isV2Ui ? 'var(--gn-bg-panel-2)' : getBg('#141414');
+  const bgContent = isV2Ui ? 'var(--gn-bg-panel-2)' : getBg('#1d1d1d');
   const floatingLogButtonBorderColor = darkMode ? 'rgba(255,255,255,0.20)' : 'rgba(0,0,0,0.16)';
   const floatingLogButtonTextColor = darkMode ? 'rgba(255,255,255,0.92)' : 'rgba(0,0,0,0.82)';
   const floatingLogButtonBgColor = darkMode
diff --git a/frontend/src/styles/v2-theme-workbench.css b/frontend/src/styles/v2-theme-workbench.css
index 4a100071..1c200b48 100644
--- a/frontend/src/styles/v2-theme-workbench.css
+++ b/frontend/src/styles/v2-theme-workbench.css
@@ -336,6 +336,38 @@ body[data-ui-version="v2"] .gn-v2-query-toolbar-run-action.ant-btn {
   font-weight: 650 !important;
 }
 
+/* 保存：与终端等 default 图标按钮同族，只把图标提到 fg-1，保证暗色下可读。
+   不再用软绿底/描边——会在实心「执行」旁显得脏、不协调。 */
+body[data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn,
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled) {
+  background: var(--gn-bg-panel) !important;
+  border-color: var(--gn-br-2) !important;
+  color: var(--gn-fg-1) !important;
+  box-shadow: none !important;
+}
+
+body[data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn .anticon,
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled) .anticon {
+  color: var(--gn-fg-1) !important;
+  font-size: 15px !important;
+}
+
+body[data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:hover,
+body[data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:focus-visible,
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled):hover,
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled):focus-visible {
+  background: var(--gn-bg-hover) !important;
+  border-color: var(--gn-br-3) !important;
+  color: var(--gn-fg-1) !important;
+}
+
+body[data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:hover .anticon,
+body[data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:focus-visible .anticon,
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled):hover .anticon,
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled):focus-visible .anticon {
+  color: var(--gn-fg-1) !important;
+}
+
 body[data-ui-version="v2"] .gn-v2-query-toolbar-ai-action.ant-btn {
   font-weight: 650 !important;
 }
@@ -1904,16 +1936,55 @@ body[data-ui-version="v2"] .gn-nacos-service-list-footer {
 }
 
 body[data-ui-version="v2"] .gn-v2-table-overview {
-  background: var(--gn-bg-app) !important;
+  /* 与左侧 sider / 主内容区同用 panel-2，消除并排色差 */
+  background: var(--gn-bg-panel-2) !important;
+  color: var(--gn-fg-1);
 }
 
 body[data-ui-version="v2"] .gn-v2-table-overview-header {
   min-height: 54px;
   padding: 12px 16px !important;
-  background: var(--gn-bg-panel) !important;
+  background: var(--gn-bg-panel-2) !important;
   border-bottom: 0.5px solid var(--gn-br-1);
 }
 
+/* 视图切换器：底/选中态跟主题，不再写死白/灰 */
+body[data-ui-version="v2"] .gn-v2-table-overview-view-switch {
+  display: inline-flex;
+  gap: 2px;
+  padding: 2px;
+  border-radius: 6px;
+  background: var(--gn-bg-active) !important;
+  border: 0.5px solid var(--gn-br-1);
+}
+
+body[data-ui-version="v2"] .gn-v2-table-overview-view-switch-btn {
+  width: 28px;
+  height: 24px;
+  padding: 0;
+  border: 0;
+  border-radius: 5px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  cursor: pointer;
+  font: inherit;
+  color: var(--gn-fg-4);
+  background: transparent;
+  box-shadow: none;
+  transition: background 0.12s ease, color 0.12s ease;
+}
+
+body[data-ui-version="v2"] .gn-v2-table-overview-view-switch-btn.is-active {
+  background: color-mix(in srgb, var(--gn-fg-1) 6%, var(--gn-bg-panel-2)) !important;
+  color: var(--gn-accent) !important;
+  box-shadow: var(--gn-shadow-sm);
+}
+
+body[data-ui-version="v2"] .gn-v2-table-overview-view-switch-btn:hover {
+  color: var(--gn-fg-1);
+}
+
 body[data-ui-version="v2"] .gn-v2-table-overview-icon {
   width: 28px;
   height: 28px;
@@ -1961,15 +2032,48 @@ body[data-ui-version="v2"] .gn-v2-table-overview-summary strong {
   }
 }
 
+/* 卡片保留内边距；列表/表格铺满内容区，去掉红框里那圈空白 */
 body[data-ui-version="v2"] .gn-v2-table-overview-content {
+  background: var(--gn-bg-panel-2) !important;
+  min-height: 0;
+}
+
+body[data-ui-version="v2"] .gn-v2-table-overview-content[data-view-mode="card"] {
   padding: 14px 16px 20px !important;
-  background: var(--gn-bg-app);
+  overflow: auto;
+}
+
+body[data-ui-version="v2"] .gn-v2-table-overview-content[data-view-mode="list"],
+body[data-ui-version="v2"] .gn-v2-table-overview-content[data-view-mode="table"] {
+  padding: 0 !important;
+  display: flex !important;
+  flex-direction: column !important;
+  overflow: hidden !important;
+}
+
+body[data-ui-version="v2"] .gn-v2-table-overview-content[data-view-mode="list"] {
+  overflow: auto !important;
 }
 
 body[data-ui-version="v2"] .gn-v2-table-overview-sections {
   display: flex;
   flex-direction: column;
   gap: 0;
+  flex: 1 1 auto;
+  min-height: 0;
+  min-width: 0;
+  background: var(--gn-bg-panel-2);
+}
+
+body[data-ui-version="v2"] .gn-v2-table-overview-section {
+  min-width: 0;
+}
+
+body[data-ui-version="v2"] .gn-v2-table-overview-content[data-view-mode="list"] .gn-v2-table-overview-section-title {
+  margin: 0 !important;
+  padding: 8px 14px 6px !important;
+  background: var(--gn-bg-panel-2);
+  border-bottom: 0.5px solid var(--gn-br-1);
 }
 
 body[data-ui-version="v2"] .gn-v2-table-overview-section-title {
@@ -2002,7 +2106,9 @@ body[data-ui-version="v2"] .gn-v2-table-card,
 body[data-ui-version="v2"] .gn-v2-table-row {
   border: 0.5px solid var(--gn-br-2) !important;
   border-radius: 8px !important;
-  background: var(--gn-bg-panel) !important;
+  /* 底已是 panel-2：卡片用轻微抬升混合色，避免与底/左侧同色糊成一片 */
+  background: color-mix(in srgb, var(--gn-fg-1) 3.5%, var(--gn-bg-panel-2)) !important;
+  color: var(--gn-fg-1) !important;
   box-shadow: var(--gn-shadow-card);
   transition: background 0.08s, border-color 0.08s, box-shadow 0.08s;
 }
@@ -2014,6 +2120,29 @@ body[data-ui-version="v2"] .gn-v2-table-row:hover {
   box-shadow: var(--gn-shadow-md);
 }
 
+/* 列表铺满：去掉卡片间距与圆角容器，整列跟面板色 */
+body[data-ui-version="v2"] .gn-v2-table-overview-content[data-view-mode="list"] .gn-v2-table-row-list {
+  gap: 0 !important;
+  border: none !important;
+  border-radius: 0 !important;
+  background: var(--gn-bg-panel-2) !important;
+  min-height: 100%;
+}
+
+body[data-ui-version="v2"] .gn-v2-table-overview-content[data-view-mode="list"] .gn-v2-table-row {
+  border-radius: 0 !important;
+  border-width: 0 0 0.5px !important;
+  border-color: var(--gn-br-1) !important;
+  box-shadow: none !important;
+  background: var(--gn-bg-panel-2) !important;
+}
+
+body[data-ui-version="v2"] .gn-v2-table-overview-content[data-view-mode="list"] .gn-v2-table-row:hover {
+  background: var(--gn-bg-hover) !important;
+  border-color: var(--gn-br-1) !important;
+  box-shadow: none !important;
+}
+
 body[data-ui-version="v2"] .gn-v2-table-card-name span {
   font-family: var(--gn-font-mono);
 }
@@ -2059,6 +2188,7 @@ body[data-ui-version="v2"] .gn-v2-table-row:last-child {
 .gn-table-overview-compact-scroll {
   flex: 1 1 auto;
   min-height: 0;
+  width: 100%;
   overflow: auto;
   border: 1px solid rgba(15, 23, 42, 0.12);
   border-radius: 6px;
@@ -2068,6 +2198,8 @@ body[data-ui-version="v2"] .gn-v2-table-row:last-child {
 
 .gn-table-overview-compact-header,
 .gn-table-overview-compact-row {
+  width: max(100%, 1120px);
+  box-sizing: border-box;
   grid-template-columns:
     minmax(190px, 1.7fr)
     minmax(170px, 1.4fr)
@@ -2176,18 +2308,24 @@ body[data-ui-version="legacy"][data-theme="dark"] .gn-table-overview-compact-row
   background: rgba(22, 119, 255, 0.16) !important;
 }
 
+/* 表格视图：贴边铺满内容区，背景全程跟主题 token */
 body[data-ui-version="v2"] .gn-table-overview-compact-scroll {
-  border-width: 0.5px;
-  border-color: var(--gn-br-2);
-  background: var(--gn-bg-panel);
+  flex: 1 1 auto !important;
+  min-height: 0 !important;
+  width: 100% !important;
+  border: none !important;
+  border-radius: 0 !important;
+  background: var(--gn-bg-panel-2) !important;
 }
 
 body[data-ui-version="v2"] .gn-table-overview-compact-header {
   min-height: 30px;
+  min-width: 1120px;
+  width: max(100%, 1120px);
   border-bottom-width: 0.5px;
   border-bottom-color: var(--gn-br-2);
-  background: var(--gn-bg-panel-2);
-  color: var(--gn-fg-3);
+  background: color-mix(in srgb, var(--gn-fg-1) 2.5%, var(--gn-bg-panel-2)) !important;
+  color: var(--gn-fg-3) !important;
   font-family: var(--gn-font-mono);
 }
 
@@ -2196,21 +2334,35 @@ body[data-ui-version="v2"] .gn-table-overview-compact-header > [role="columnhead
   border-right-color: var(--gn-br-1);
 }
 
+body[data-ui-version="v2"] .gn-table-overview-compact-sort-button {
+  color: inherit;
+}
+
 body[data-ui-version="v2"] .gn-table-overview-compact-sort-button:hover {
   background: var(--gn-bg-hover) !important;
 }
 
+body[data-ui-version="v2"] .gn-table-overview-compact-sort-button[aria-pressed="true"] {
+  color: var(--gn-accent) !important;
+}
+
 body[data-ui-version="v2"] .gn-table-overview-compact-section {
+  min-width: 1120px;
+  width: max(100%, 1120px);
+  box-sizing: border-box;
+  padding: 0 10px;
   border-bottom-width: 0.5px;
   border-bottom-color: var(--gn-br-1);
-  background: var(--gn-bg-panel-2);
+  background: color-mix(in srgb, var(--gn-fg-1) 2.5%, var(--gn-bg-panel-2)) !important;
 }
 
 body[data-ui-version="v2"] .gn-table-overview-compact-row {
   min-height: 30px !important;
+  min-width: 1120px !important;
+  width: max(100%, 1120px) !important;
   border-bottom-width: 0.5px !important;
   border-bottom-color: var(--gn-br-1) !important;
-  background: var(--gn-bg-panel) !important;
+  background: var(--gn-bg-panel-2) !important;
   color: var(--gn-fg-1) !important;
   font-family: var(--gn-font-mono);
 }
@@ -2225,10 +2377,21 @@ body[data-ui-version="v2"] .gn-table-overview-compact-cell {
   padding-bottom: 4px;
   font-size: 11.5px;
   line-height: 21px;
+  color: inherit;
 }
 
 body[data-ui-version="v2"] .gn-table-overview-compact-name .anticon {
-  color: var(--gn-accent);
+  color: var(--gn-accent) !important;
+}
+
+/* 表概览筛选条也跟主题 */
+body[data-ui-version="v2"] .gn-v2-table-overview-filter-bar {
+  margin: 0 !important;
+  padding: 8px 14px !important;
+  border-radius: 0 !important;
+  border-bottom: 0.5px solid var(--gn-br-1);
+  background: color-mix(in srgb, var(--gn-fg-1) 2.5%, var(--gn-bg-panel-2)) !important;
+  color: var(--gn-fg-4) !important;
 }
 
 body[data-ui-version="v2"] .gn-v2-data-grid-column-quick-find {
diff --git a/frontend/src/utils/customThemePresets.test.ts b/frontend/src/utils/customThemePresets.test.ts
index ad16f17c..73658ac0 100644
--- a/frontend/src/utils/customThemePresets.test.ts
+++ b/frontend/src/utils/customThemePresets.test.ts
@@ -72,6 +72,11 @@ describe('built-in custom theme presets', () => {
     expect(comfortDark.css).toContain('--gn-fg-5: #878e98');
     expect(comfortDark.css).toContain('--gn-on-accent: #142019');
     expect(comfortDark.css).toContain('.gn-v2-query-toolbar-save-action');
+    // 保存：default 同族 + fg-1 图标，禁止软绿底/透明底踩 primary 前景
+    expect(comfortDark.css).toContain('color: var(--gn-fg-1) !important');
+    expect(comfortDark.css).not.toMatch(
+      /\.gn-v2-query-toolbar-save-action[\s\S]{0,200}background:\s*transparent\s*!important/,
+    );
     expect(comfortDark.css).toContain('.gn-v2-ai-panel .ai-logo');
     expect(comfortDark.css).toContain('.monaco-editor-background');
     expect(comfortDark.css).not.toContain('background-color: var(--gn-bg-input) !important;');
diff --git a/frontend/src/utils/customThemePresets.ts b/frontend/src/utils/customThemePresets.ts
index cf3c0238..d5a15096 100644
--- a/frontend/src/utils/customThemePresets.ts
+++ b/frontend/src/utils/customThemePresets.ts
@@ -396,27 +396,38 @@ body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-transaction-commit-bu
   color: var(--gn-accent-text, var(--gn-accent)) !important;
 }
 
-/* 「保存」降为次级样式：与 v2-theme.css 保持一致。
-   原先填 --gn-info，而 info 与 accent 在内置主题下的区分度仅 1.05–1.25，
-   两个相邻实心按钮一眼分不清；且 Midnight Navy / Nord Slate 的 accent 本身即蓝青系，
-   靠色相无法拉开，故改用层级区分，只让「执行」保持实心主按钮。 */
-body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar-save-action.ant-btn-primary:not(:disabled) {
-  background: transparent !important;
-  border-color: var(--gn-br-3) !important;
-  color: var(--gn-fg-2) !important;
+/* 「保存」与工具栏 default 图标按钮同族（v2 已不用 type=primary）。
+   仅保证图标用 fg-1，避免与终端等按钮混成一摊灰时单独发闷。 */
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled) {
+  background: var(--gn-bg-panel) !important;
+  border-color: var(--gn-br-2) !important;
+  color: var(--gn-fg-1) !important;
   box-shadow: none !important;
 }
 
-body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar-save-action.ant-btn-primary:not(:disabled):hover,
-body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar-save-action.ant-btn-primary:not(:disabled):focus-visible {
-  background: var(--gn-bg-hover) !important;
-  border-color: var(--gn-accent) !important;
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled) .anticon {
   color: var(--gn-fg-1) !important;
 }
 
-body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar-save-action.ant-btn-primary:not(:disabled):active {
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled):hover,
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled):focus-visible {
+  background: var(--gn-bg-hover) !important;
+  border-color: var(--gn-br-3) !important;
+  color: var(--gn-fg-1) !important;
+}
+
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled):hover .anticon,
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled):focus-visible .anticon {
+  color: var(--gn-fg-1) !important;
+}
+
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled):active {
   background: var(--gn-bg-active) !important;
-  border-color: var(--gn-accent) !important;
+  border-color: var(--gn-br-3) !important;
+  color: var(--gn-fg-1) !important;
+}
+
+body[data-custom-theme][data-ui-version="v2"] .gn-v2-query-toolbar .gn-v2-query-toolbar-save-action.ant-btn:not(:disabled):active .anticon {
   color: var(--gn-fg-1) !important;
 }
 
diff --git a/frontend/src/v2-theme.css b/frontend/src/v2-theme.css
index 3b151fbd..f9c0d1f6 100644
--- a/frontend/src/v2-theme.css
+++ b/frontend/src/v2-theme.css
@@ -156,11 +156,16 @@ body[data-ui-version="v2"] [class*="monospace"] {
    ANT DESIGN OVERRIDES — surfaces & chrome
    ────────────────────────────────────────────────────────── */
 
-body[data-ui-version="v2"] .ant-layout,
-body[data-ui-version="v2"] .ant-layout-content {
+body[data-ui-version="v2"] .ant-layout {
   background: var(--gn-bg-app) !important;
 }
 
+/* 主内容区与左侧 sider 同用 panel-2：原先 app 近黑、panel 更深一档，
+   与 sider 的 panel-2 并排时会出现明显色差（表概览空白区尤其扎眼）。 */
+body[data-ui-version="v2"] .ant-layout-content {
+  background: var(--gn-bg-panel-2) !important;
+}
+
 body[data-ui-version="v2"] .ant-layout-sider {
   background: var(--gn-bg-panel-2) !important;
   border-right: 0.5px solid var(--gn-br-1) !important;
@@ -319,31 +324,7 @@ body[data-ui-version="v2"] .ant-btn-primary:active {
   color: var(--gn-ant-on-primary, var(--gn-on-accent, #fff)) !important;
 }
 
-/* 查询工具栏「保存」降为次级样式：描边 + 中性底。
-   原先它与「执行」一样是实心饱满按钮，而两者在内置主题下的填充色（accent 与 info）
-   区分度仅 1.05–1.25 —— 相邻两个同色实心方块，一眼分不出哪个是执行、哪个是保存。
-   由于 Midnight Navy / Nord Slate 的 accent 本身就是蓝青系，靠拉开色相无法解决，
-   改用层级区分：工具栏里只有「执行」是实心主按钮，其余降级，主操作因此真正突出。 */
-body[data-ui-version="v2"] .gn-v2-query-toolbar-save-action.ant-btn-primary {
-  background: transparent !important;
-  border-color: var(--gn-br-3) !important;
-  color: var(--gn-fg-2) !important;
-  font-weight: 600 !important;
-  box-shadow: none !important;
-}
-
-body[data-ui-version="v2"] .gn-v2-query-toolbar-save-action.ant-btn-primary:hover,
-body[data-ui-version="v2"] .gn-v2-query-toolbar-save-action.ant-btn-primary:focus-visible {
-  background: var(--gn-bg-hover) !important;
-  border-color: var(--gn-accent) !important;
-  color: var(--gn-fg-1) !important;
-}
-
-body[data-ui-version="v2"] .gn-v2-query-toolbar-save-action.ant-btn-primary:active {
-  background: var(--gn-bg-active) !important;
-  border-color: var(--gn-accent) !important;
-  color: var(--gn-fg-1) !important;
-}
+/* 查询工具栏「保存」在 v2 已改为 default 图标按钮；样式见 v2-theme-workbench.css。 */
 
 body[data-ui-version="v2"] .ant-btn-primary:disabled {
   background: var(--gn-bg-active) !important;
@@ -454,17 +435,47 @@ body[data-ui-version="v2"] .ant-picker-dropdown .ant-picker-panel-container {
 }
 
 body[data-ui-version="v2"] .ant-dropdown-menu-item,
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-title,
 body[data-ui-version="v2"] .ant-select-item {
+  display: flex !important;
+  align-items: center !important;
+  gap: 0;
   border-radius: 6px !important;
   padding: 6px 10px !important;
   color: var(--gn-fg-1) !important;
-  min-height: 28px !important;
+  min-height: 32px !important;
+  line-height: 1.25 !important;
   font-size: 12.5px !important;
+  /* Flat item surface — no outline/box that makes submenu rows look different */
+  border: none !important;
+  box-shadow: none !important;
+  outline: none !important;
+}
+
+/* Icon + label share one baseline/vertical center (leaf and submenu rows) */
+body[data-ui-version="v2"] .ant-dropdown-menu-title-content {
+  display: inline-flex !important;
+  align-items: center !important;
+  min-width: 0;
+  line-height: 1.25 !important;
 }
 
 body[data-ui-version="v2"] .ant-dropdown-menu-item:hover,
+body[data-ui-version="v2"] .ant-dropdown-menu-item-active,
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-title:hover,
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-active > .ant-dropdown-menu-submenu-title,
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-open > .ant-dropdown-menu-submenu-title,
 body[data-ui-version="v2"] .ant-select-item-option-active:not(.ant-select-item-option-disabled) {
   background: var(--gn-bg-active) !important;
+  color: var(--gn-fg-1) !important;
+  border: none !important;
+  box-shadow: none !important;
+}
+
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-selected > .ant-dropdown-menu-submenu-title {
+  background: var(--gn-bg-active) !important;
+  color: var(--gn-fg-1) !important;
+  font-weight: 400 !important;
 }
 
 body[data-ui-version="v2"] .ant-select-item-option-selected:not(.ant-select-item-option-disabled) {
@@ -479,9 +490,43 @@ body[data-ui-version="v2"] .ant-dropdown-menu-item-divider {
 }
 
 /* Right-click menu items get a tighter, sectioned look */
-body[data-ui-version="v2"] .ant-dropdown-menu-item-icon {
-  color: var(--gn-fg-4);
+body[data-ui-version="v2"] .ant-dropdown-menu-item-icon,
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-title .ant-dropdown-menu-item-icon,
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-expand-icon {
+  color: var(--gn-fg-4) !important;
+}
+
+body[data-ui-version="v2"] .ant-dropdown-menu-item-icon,
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-title .ant-dropdown-menu-item-icon {
+  display: inline-flex !important;
+  align-items: center !important;
+  justify-content: center !important;
+  flex: 0 0 16px !important;
+  width: 16px !important;
+  height: 16px !important;
+  margin-inline-end: 8px !important;
   margin-right: 8px !important;
+  font-size: 14px !important;
+  line-height: 1 !important;
+}
+
+body[data-ui-version="v2"] .ant-dropdown-menu-item-icon > .anticon,
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-title .ant-dropdown-menu-item-icon > .anticon {
+  display: inline-flex !important;
+  align-items: center !important;
+  justify-content: center !important;
+  line-height: 1 !important;
+}
+
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-expand-icon {
+  display: inline-flex !important;
+  align-items: center !important;
+  justify-content: center !important;
+  top: 50% !important;
+  transform: translateY(-50%) !important;
+  margin-inline-end: 2px !important;
+  height: 16px !important;
+  line-height: 1 !important;
 }
 
 body[data-ui-version="v2"] .ant-dropdown-menu-item-danger {
@@ -490,10 +535,62 @@ body[data-ui-version="v2"] .ant-dropdown-menu-item-danger {
 body[data-ui-version="v2"] .ant-dropdown-menu-item-danger:hover {
   background: rgba(220, 38, 38, 0.08) !important;
 }
-body[data-ui-version="v2"] .ant-dropdown-menu-submenu-title {
-  border-radius: 6px !important;
-  padding: 6px 10px !important;
-  font-size: 12.5px !important;
+
+/* Nested dropdown menus: collapse double border, no glow/halo */
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-popup,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-submenu,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-dropdown .ant-dropdown-menu-submenu-popup {
+  margin-inline-start: -2px !important;
+  padding: 0 !important;
+}
+
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-popup > .ant-dropdown-menu,
+body[data-ui-version="v2"] .ant-dropdown-menu-submenu-popup.ant-dropdown-menu,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-submenu .ant-dropdown-menu,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-submenu.ant-dropdown-menu {
+  /* Match primary menu border only — strip outer glow that reads as white rim in dark theme */
+  border: 0.5px solid var(--gn-br-2) !important;
+  border-inline-start: none !important;
+  border-radius: 10px !important;
+  border-start-start-radius: 8px !important;
+  border-end-start-radius: 8px !important;
+  box-shadow: none !important;
+  filter: none !important;
+}
+
+/* Title-bar cascade: keep both levels flat (no shadow/halo on either panel) */
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-dropdown .ant-dropdown-menu,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-menu {
+  box-shadow: none !important;
+  filter: none !important;
+}
+
+/* Title-bar more menu: leaf rows and submenu rows share the same hover fill + alignment */
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-dropdown .ant-dropdown-menu-item,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-dropdown .ant-dropdown-menu-submenu-title,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-menu .ant-dropdown-menu-item,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-menu .ant-dropdown-menu-submenu-title {
+  display: flex !important;
+  align-items: center !important;
+  background: transparent !important;
+  border: none !important;
+  box-shadow: none !important;
+  min-height: 32px !important;
+}
+
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-dropdown .ant-dropdown-menu-item:hover,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-dropdown .ant-dropdown-menu-item-active,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-dropdown .ant-dropdown-menu-submenu-title:hover,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-dropdown .ant-dropdown-menu-submenu-active > .ant-dropdown-menu-submenu-title,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-dropdown .ant-dropdown-menu-submenu-open > .ant-dropdown-menu-submenu-title,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-menu .ant-dropdown-menu-item:hover,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-menu .ant-dropdown-menu-item-active,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-menu .ant-dropdown-menu-submenu-title:hover,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-menu .ant-dropdown-menu-submenu-active > .ant-dropdown-menu-submenu-title,
+body[data-ui-version="v2"] .gn-v2-titlebar-quick-menu .ant-dropdown-menu-submenu-open > .ant-dropdown-menu-submenu-title {
+  background: var(--gn-bg-active) !important;
+  border: none !important;
+  box-shadow: none !important;
 }
 
 /* ─── Tables (ant-table, used by some legacy panes) ────── */
@@ -1494,12 +1591,15 @@ body[data-ui-version="v2"] .ant-divider {
 body[data-ui-version="v2"] .gn-v2-object-explorer .ant-tree .ant-tree-node-content-wrapper.ant-tree-node-selected::before {
   content: '';
   position: absolute;
-  left: -6px;
-  top: 4px;
-  bottom: 4px;
-  width: 2px;
+  left: 2px;
+  top: 5px;
+  bottom: 5px;
+  width: 3px;
   background: var(--gn-accent);
   border-radius: 2px;
+  display: block;
+  pointer-events: none;
+  z-index: 1;
 }
 
 body[data-ui-version="v2"] .ant-tree .ant-tree-node-content-wrapper {
@@ -1950,9 +2050,10 @@ body[data-ui-version="v2"] .gn-v2-connection-rail {
   flex-direction: column;
   align-items: center;
   justify-content: flex-start;
-  gap: calc(4px * var(--gn-v2-rail-scale));
-  padding: calc(8px * var(--gn-v2-rail-scale)) 0;
+  gap: 0;
+  padding: calc(6px * var(--gn-v2-rail-scale)) 0 0;
   border-right: 0.5px solid var(--gn-br-1);
+  /* Match explorer panel — no tint strip (tinted empty rail looked worse) */
   background: transparent;
 }
 
@@ -2087,17 +2188,21 @@ body[data-ui-version="v2"] .gn-v2-rail-secondary-actions {
   display: flex;
   flex-direction: column;
   align-items: center;
-  gap: calc(6px * var(--gn-v2-rail-scale));
+  gap: calc(4px * var(--gn-v2-rail-scale));
 }
 
+/* Top tool cluster — compact, not floating in empty space */
 body[data-ui-version="v2"] .gn-v2-rail-primary-actions {
-  padding-top: calc(4px * var(--gn-v2-rail-scale));
+  padding: calc(2px * var(--gn-v2-rail-scale)) 0 calc(4px * var(--gn-v2-rail-scale));
 }
 
+/* Bottom system actions — pin to foot with a hairline only, no fill */
 body[data-ui-version="v2"] .gn-v2-rail-secondary-actions {
   margin-top: auto;
   flex: 0 0 auto;
-  padding-bottom: calc(4px * var(--gn-v2-rail-scale));
+  padding: calc(6px * var(--gn-v2-rail-scale)) 0 calc(8px * var(--gn-v2-rail-scale));
+  border-top: 0.5px solid var(--gn-br-1);
+  background: transparent;
 }
 
 body[data-ui-version="v2"] .gn-v2-rail-action-group,
@@ -2148,19 +2253,39 @@ body[data-ui-version="v2"] .gn-v2-rail-tool {
   justify-content: center;
   gap: 0;
   padding: 0;
+  cursor: pointer;
+  transition: background-color 140ms ease, color 140ms ease, box-shadow 140ms ease;
 }
 
+/* Compact square hit target for rail tools (locate / AI / settings) */
 body[data-ui-version="v2"] .gn-v2-rail-tool {
-  width: calc(24px * var(--gn-v2-rail-scale));
-  height: calc(32px * var(--gn-v2-rail-scale));
-  border-radius: calc(8px * var(--gn-v2-rail-scale));
+  width: calc(28px * var(--gn-v2-rail-scale));
+  height: calc(28px * var(--gn-v2-rail-scale));
+  border-radius: calc(7px * var(--gn-v2-rail-scale));
   justify-content: center;
   padding: 0;
+  color: var(--gn-fg-3);
+}
+
+body[data-ui-version="v2"] .gn-v2-rail-tool .anticon {
+  font-size: calc(15px * var(--gn-v2-rail-scale));
+  line-height: 1;
 }
 
 body[data-ui-version="v2"] .gn-v2-rail-item:hover,
-body[data-ui-version="v2"] .gn-v2-rail-tool:hover {
+body[data-ui-version="v2"] .gn-v2-rail-tool:hover:not(:disabled) {
   background: var(--gn-bg-hover);
+  color: var(--gn-fg-1);
+}
+
+body[data-ui-version="v2"] .gn-v2-rail-tool:hover:not(:disabled) {
+  background: color-mix(in srgb, var(--gn-accent) 12%, var(--gn-bg-hover));
+  color: var(--gn-accent);
+}
+
+body[data-ui-version="v2"] .gn-v2-rail-tool:focus-visible {
+  outline: 2px solid var(--gn-accent);
+  outline-offset: 1px;
 }
 
 body[data-ui-version="v2"] .gn-v2-rail-item.is-active {
@@ -2326,7 +2451,7 @@ body[data-ui-version="v2"] .gn-v2-active-connection-copy span {
 body[data-ui-version="v2"] .gn-v2-active-connection-copy strong {
   color: var(--gn-fg-1);
   font-size: 13px;
-  font-weight: 400;
+  font-weight: 600;
   line-height: 1.2;
 }
 
@@ -2338,6 +2463,11 @@ body[data-ui-version="v2"] .gn-v2-active-connection-copy span {
   line-height: 1.2;
 }
 
+/* Empty database selection: guide tone, not error tone */
+body[data-ui-version="v2"] .gn-v2-active-connection-copy span.is-placeholder {
+  color: var(--gn-fg-5);
+}
+
 body[data-ui-version="v2"] .gn-v2-active-connection-tooltip {
   display: flex;
   flex-direction: column;
@@ -2366,6 +2496,13 @@ body[data-ui-version="v2"] .gn-v2-active-connection-actions {
   align-items: center;
   gap: 4px;
   flex: 0 0 auto;
+  opacity: 0.72;
+  transition: opacity 140ms ease;
+}
+
+body[data-ui-version="v2"] .gn-v2-active-connection-header:hover .gn-v2-active-connection-actions,
+body[data-ui-version="v2"] .gn-v2-active-connection-header:focus-within .gn-v2-active-connection-actions {
+  opacity: 1;
 }
 
 @container gn-v2-object-explorer (max-width: 440px) {
@@ -2815,19 +2952,26 @@ body[data-ui-version="v2"] .gn-v2-explorer-filter-tabs::-webkit-scrollbar {
 body[data-ui-version="v2"] .gn-v2-explorer-filter-tabs button {
   flex: 0 0 auto;
   height: 22px;
-  padding: 0 6px;
+  padding: 0 7px;
   border: none;
-  border-radius: 5px;
+  border-radius: 6px;
   background: transparent;
   color: var(--gn-fg-4);
   font-size: 11px;
-  font-weight: 600;
+  font-weight: 500;
   white-space: nowrap;
+  transition: background-color 140ms ease, color 140ms ease;
+}
+
+body[data-ui-version="v2"] .gn-v2-explorer-filter-tabs button:hover {
+  background: var(--gn-bg-hover);
+  color: var(--gn-fg-2);
 }
 
 body[data-ui-version="v2"] .gn-v2-explorer-filter-tabs button.is-active {
-  background: var(--gn-bg-active);
-  color: var(--gn-fg-1);
+  background: color-mix(in srgb, var(--gn-accent) 14%, var(--gn-bg-panel-2));
+  color: var(--gn-accent);
+  font-weight: 700;
 }
 
 body[data-ui-version="v2"] .gn-v2-explorer-toolbar {
@@ -2910,6 +3054,11 @@ body[data-ui-version="v2"] .gn-v2-explorer-tree-shell .ant-tree-treenode {
   align-items: center;
 }
 
+/* Connection rows sit one step taller than object rows for hierarchy */
+body[data-ui-version="v2"] .gn-v2-explorer-tree-shell .ant-tree-treenode:has(.gn-v2-tree-title.is-connection) {
+  min-height: 30px !important;
+}
+
 body[data-ui-version="v2"] .gn-v2-explorer-tree-shell .ant-tree-switcher {
   width: 16px !important;
   min-width: 16px !important;
@@ -2919,6 +3068,10 @@ body[data-ui-version="v2"] .gn-v2-explorer-tree-shell .ant-tree-switcher {
   color: var(--gn-fg-4);
 }
 
+body[data-ui-version="v2"] .gn-v2-explorer-tree-shell .ant-tree-treenode:has(.gn-v2-tree-title.is-connection) .ant-tree-switcher {
+  line-height: 30px !important;
+}
+
 body[data-ui-version="v2"] .gn-v2-explorer-tree-shell .ant-tree-indent-unit {
   width: 12px !important;
 }
@@ -2927,21 +3080,26 @@ body[data-ui-version="v2"] .gn-v2-explorer-tree-shell .ant-tree-node-content-wra
   min-width: 100%;
   width: max-content !important;
   min-height: 26px !important;
-  padding: 0 6px !important;
+  padding: 0 6px 0 8px !important;
   display: flex !important;
   align-items: center;
   border-radius: 6px !important;
   color: var(--gn-fg-3) !important;
 }
 
+body[data-ui-version="v2"] .gn-v2-explorer-tree-shell .ant-tree-treenode:has(.gn-v2-tree-title.is-connection) .ant-tree-node-content-wrapper {
+  min-height: 30px !important;
+}
+
 body[data-ui-version="v2"] .gn-v2-explorer-tree-shell .ant-tree-node-content-wrapper:hover {
   background: var(--gn-bg-hover) !important;
 }
 
 body[data-ui-version="v2"] .gn-v2-explorer-tree-shell .ant-tree-node-content-wrapper.ant-tree-node-selected {
-  background: var(--gn-bg-selected) !important;
+  background: color-mix(in srgb, var(--gn-accent) 10%, var(--gn-bg-selected)) !important;
   color: var(--gn-fg-1) !important;
   font-weight: 400 !important;
+  box-shadow: inset 0 0 0 0.5px color-mix(in srgb, var(--gn-accent) 16%, transparent);
 }
 
 body[data-ui-version="v2"] .gn-v2-explorer-tree-shell .ant-tree-iconEle {
@@ -3041,6 +3199,8 @@ body[data-ui-version="v2"] .gn-v2-tree-title.is-group {
 body[data-ui-version="v2"] .gn-v2-tree-title.is-connection {
   align-items: center;
   gap: 6px;
+  font-weight: 500 !important;
+  color: var(--gn-fg-1);
 }
 
 body[data-ui-version="v2"] .gn-v2-tree-status {
@@ -3243,9 +3403,7 @@ body[data-ui-version="v2"] .gn-v2-table-pin-indicator {
   color: var(--gn-warn);
 }
 
-body[data-ui-version="v2"] .gn-v2-object-explorer .ant-tree .ant-tree-node-content-wrapper.ant-tree-node-selected::before {
-  display: none;
-}
+/* Selected accent bar kept on; see rule near Small additions block */
 
 body[data-ui-version="v2"] .gn-v2-tree-title[data-node-type="database"] {
   font-weight: 400 !important;
@@ -3747,7 +3905,7 @@ body[data-ui-version="v2"] .gn-v2-workspace-body {
 }
 
 body[data-ui-version="v2"] .gn-v2-workspace-main {
-  background: var(--gn-bg-panel) !important;
+  background: var(--gn-bg-panel-2) !important;
 }
 
 body[data-ui-version="v2"] .gn-v2-ai-panel-dock {
diff --git a/shared/i18n/de-DE.json b/shared/i18n/de-DE.json
index 9bc601c6..4d911aa0 100644
--- a/shared/i18n/de-DE.json
+++ b/shared/i18n/de-DE.json
@@ -2537,6 +2537,9 @@
   "app.connection_package.action.start_export": "Export starten",
   "app.connection_package.action.start_import": "Import starten",
   "app.connection_package.dialog.export_title": "Verbindungen exportieren",
+  "app.connection_package.dialog.export_connections_label": "Zu exportierende Verbindungen",
+  "app.connection_package.dialog.export_connections_placeholder": "Eine oder mehrere Verbindungen auswählen",
+  "app.connection_package.dialog.export_connections_summary": "{{selected}} / {{total}} Verbindung(en) ausgewählt",
   "app.connection_package.dialog.file_password_placeholder": "Dateischutzpasswort eingeben (optional)",
   "app.connection_package.dialog.help.encrypted_passwords_recommend_file_password": "Passwörter sind verschlüsselt. Für die Übertragung über öffentliche Netzwerke sollten Sie ein Dateischutzpasswort festlegen.",
   "app.connection_package.dialog.help.exclude_passwords": "Es werden nur Verbindungseinstellungen exportiert. Passwörter sind nicht enthalten.",
@@ -2546,6 +2549,7 @@
   "app.connection_package.dialog.option.use_file_password": "Dateischutzpasswort festlegen",
   "app.connection_package.dialog.restore_password_placeholder": "Passwort des Wiederherstellungspakets eingeben",
   "app.connection_package.error.export_capability_unavailable": "Export fehlgeschlagen: Das aktuelle Backend stellt die neue Exportfunktion nicht bereit",
+  "app.connection_package.error.no_selected_connections": "Wählen Sie mindestens eine Verbindung zum Exportieren",
   "app.connection_package.error.file_password_required": "Das Dateischutzpasswort darf nicht leer sein",
   "app.connection_package.error.import_capability_unavailable": "Import fehlgeschlagen: Das aktuelle Backend stellt die neue Importfunktion nicht bereit",
   "app.connection_package.error.import_no_connections": "Import fehlgeschlagen: Das Backend hat keine Verbindungsliste zurückgegeben",
@@ -3957,6 +3961,14 @@
   "data_export.workbench.helper.available_objects": "{{available}} Objekte sind in der aktuellen Datenbank verfügbar, {{selected}} ausgewählt.",
   "data_export.workbench.helper.batch_database_output": "Beim Start des Exports wählen Sie zuerst ein Ausgabeverzeichnis, danach werden für jede Datenbank separate SQL-Dateien erzeugt.",
   "data_export.workbench.helper.batch_databases_start": "Beim Stapel-Export von Datenbanken wählen Sie zuerst ein Ausgabeverzeichnis. Danach werden pro Datenbank separate SQL-Dateien erzeugt und rechts der Gesamtfortschritt angezeigt.",
+  "data_export.workbench.intent.label": "Aktion",
+  "data_export.workbench.intent.export": "Export",
+  "data_export.workbench.intent.delete": "Löschen",
+  "data_export.workbench.intent.batch_tables_delete_description": "Ausgewählte Tabellen leeren oder löschen. Nicht rückgängig machbar.",
+  "data_export.workbench.intent.batch_databases_delete_description": "Ausgewählte Datenbanken und alle Daten löschen. Nicht rückgängig machbar.",
+  "data_export.workbench.helper.batch_tables_delete": "Zielumgebung vor dem Leeren oder Löschen prüfen.",
+  "data_export.workbench.helper.batch_databases_delete": "Zielumgebung vor dem Löschen prüfen.",
+  "data_export.workbench.strategy.batch_delete": "Stapellöschung",
   "data_export.workbench.helper.batch_tables_start": "Beim Stapel-Export von Objekten wird eine gemeinsame SQL-Datei erzeugt. Rechts sehen Sie den Gesamtfortschritt und aktuelle Aufgabenübersichten.",
   "data_export.workbench.helper.single_export_start": "Nach dem Start des Exports wählen Sie zuerst die Zieldatei. Rechts werden dann ein einzelner Fortschrittsbalken, die Dauer und der Ausgabepfad angezeigt.",
   "data_export.workbench.history.count": "{{count}} Einträge",
@@ -7181,6 +7193,7 @@
   "sidebar.action.cancel": "Abbrechen",
   "sidebar.action.clear_selection": "Alle abwählen",
   "sidebar.action.clear_tables": "Tabellen leeren",
+  "sidebar.action.truncate_tables": "Tabellen abschneiden",
   "sidebar.action.close": "Schließen",
   "sidebar.action.continue": "Fortfahren",
   "sidebar.action.delete": "Löschen",
@@ -7201,7 +7214,7 @@
   "sidebar.action.unpin_table": "Anheften aufheben",
   "sidebar.active_connection.actions": "Verbindungsaktionen",
   "sidebar.active_connection.current_host_database": "Aktueller Host und Datenbank",
-  "sidebar.active_connection.no_database_selected": "Keine Datenbank ausgewählt",
+  "sidebar.active_connection.no_database_selected": "Datenbank wählen, um Objekte zu browsen",
   "sidebar.active_connection.no_host_selected": "Kein Host ausgewählt",
   "sidebar.ai_prompt.explain.detail": "Gehe besonders auf Feldbedeutungen, Primärschlüssel/Indizes, mögliche Beziehungen, typische Abfrageszenarien und Risiken ein.",
   "sidebar.ai_prompt.explain.intro": "Erkläre die Struktur und fachliche Bedeutung der Tabelle {{table}}.",
@@ -7433,6 +7446,9 @@
   "sidebar.message.clear_failed": "Leeren fehlgeschlagen: {{error}}",
   "sidebar.message.clear_success": "Leeren erfolgreich.",
   "sidebar.message.clearing_selected_tables": "{{count}} ausgewählte Tabellen werden geleert...",
+  "sidebar.message.truncate_selected_tables_failed": "Tabellen abschneiden fehlgeschlagen: {{error}}",
+  "sidebar.message.truncate_selected_tables_success": "{{count}} Tabelle(n) abgeschnitten.",
+  "sidebar.message.truncating_selected_tables": "{{count}} Tabelle(n) werden abgeschnitten…",
   "sidebar.message.connection_config_not_found": "Verbindungskonfiguration wurde nicht gefunden.",
   "sidebar.message.connection_deleted": "Verbindung gelöscht.",
   "sidebar.message.connection_failed": "Verbindung fehlgeschlagen: {{error}}",
@@ -7597,6 +7613,8 @@
   "sidebar.modal.batch_tables.title": "Stapeloperationen für Objekte",
   "sidebar.modal.confirm_clear_selected_tables.content": "Daten der ausgewählten Objekte unter {{connection}} / {{database}} leeren? Dies kann nicht rückgängig gemacht werden.",
   "sidebar.modal.confirm_clear_selected_tables.title": "Ausgewählte Tabellen leeren",
+  "sidebar.modal.confirm_truncate_selected_tables.content": "Daten in {{count}} ausgewählten Tabelle(n) unter {{connection}} / {{database}} abschneiden (TRUNCATE)? Meist nicht rückgängig machbar.",
+  "sidebar.modal.confirm_truncate_selected_tables.title": "Abschneiden der ausgewählten Tabellen bestätigen",
   "sidebar.modal.confirm_delete.title": "Löschen bestätigen",
   "sidebar.modal.confirm_delete_connection.content": "{{name}} löschen?",
   "sidebar.modal.confirm_delete_database.content": "{{name}} löschen? Dies kann nicht rückgängig gemacht werden.",
diff --git a/shared/i18n/en-US.json b/shared/i18n/en-US.json
index a16ed682..48e632e9 100644
--- a/shared/i18n/en-US.json
+++ b/shared/i18n/en-US.json
@@ -2537,6 +2537,9 @@
   "app.connection_package.action.start_export": "Start Export",
   "app.connection_package.action.start_import": "Start Import",
   "app.connection_package.dialog.export_title": "Export Connections",
+  "app.connection_package.dialog.export_connections_label": "Connections to export",
+  "app.connection_package.dialog.export_connections_placeholder": "Select one or more connections",
+  "app.connection_package.dialog.export_connections_summary": "Selected {{selected}} / {{total}} connection(s)",
   "app.connection_package.dialog.file_password_placeholder": "Enter file protection password (optional)",
   "app.connection_package.dialog.help.encrypted_passwords_recommend_file_password": "Passwords are encrypted. For public transfer, set a file protection password.",
   "app.connection_package.dialog.help.exclude_passwords": "Only connection settings will be exported. Passwords are not included.",
@@ -2546,6 +2549,7 @@
   "app.connection_package.dialog.option.use_file_password": "Set file protection password",
   "app.connection_package.dialog.restore_password_placeholder": "Enter recovery package password",
   "app.connection_package.error.export_capability_unavailable": "Export failed: the current backend does not provide the new export capability",
+  "app.connection_package.error.no_selected_connections": "Select at least one connection to export",
   "app.connection_package.error.file_password_required": "File protection password cannot be empty",
   "app.connection_package.error.import_capability_unavailable": "Import failed: the current backend does not provide the new import capability",
   "app.connection_package.error.import_no_connections": "Import failed: the backend did not return a connection list",
@@ -3957,6 +3961,14 @@
   "data_export.workbench.helper.available_objects": "{{available}} objects are available in the current database, {{selected}} selected.",
   "data_export.workbench.helper.batch_database_output": "When export starts, choose an output directory first, then generate separate SQL files for each database.",
   "data_export.workbench.helper.batch_databases_start": "Batch database export lets you choose an output directory first, then generates separate SQL files per database and shows overall database progress on the right.",
+  "data_export.workbench.intent.label": "Action",
+  "data_export.workbench.intent.export": "Export",
+  "data_export.workbench.intent.delete": "Delete",
+  "data_export.workbench.intent.batch_tables_delete_description": "Clear or drop the selected tables. This cannot be undone.",
+  "data_export.workbench.intent.batch_databases_delete_description": "Drop the selected databases and all of their data. This cannot be undone.",
+  "data_export.workbench.helper.batch_tables_delete": "Confirm the target environment before clearing or deleting tables.",
+  "data_export.workbench.helper.batch_databases_delete": "Confirm the target environment before deleting databases.",
+  "data_export.workbench.strategy.batch_delete": "Batch delete",
   "data_export.workbench.helper.batch_tables_start": "Batch object export generates one SQL file and shows overall object progress plus recent task summaries on the right.",
   "data_export.workbench.helper.single_export_start": "After export starts, you will choose the target file first, and the right panel will show a single progress bar, elapsed time, and output path.",
   "data_export.workbench.history.count": "{{count}} records",
@@ -7181,6 +7193,7 @@
   "sidebar.action.cancel": "Cancel",
   "sidebar.action.clear_selection": "Deselect all",
   "sidebar.action.clear_tables": "Clear tables",
+  "sidebar.action.truncate_tables": "Truncate tables",
   "sidebar.action.close": "Close",
   "sidebar.action.continue": "Continue",
   "sidebar.action.delete": "Delete",
@@ -7201,7 +7214,7 @@
   "sidebar.action.unpin_table": "Unpin table",
   "sidebar.active_connection.actions": "Connection actions",
   "sidebar.active_connection.current_host_database": "Current host and database",
-  "sidebar.active_connection.no_database_selected": "No database selected",
+  "sidebar.active_connection.no_database_selected": "Select a database to browse objects",
   "sidebar.active_connection.no_host_selected": "No host selected",
   "sidebar.ai_prompt.explain.detail": "Focus on field meanings, primary keys/indexes, potential relationships, typical query scenarios, and risks.",
   "sidebar.ai_prompt.explain.intro": "Explain the structure and business meaning of table {{table}}.",
@@ -7433,6 +7446,9 @@
   "sidebar.message.clear_failed": "Clear failed: {{error}}",
   "sidebar.message.clear_success": "Clear completed.",
   "sidebar.message.clearing_selected_tables": "Clearing {{count}} selected tables...",
+  "sidebar.message.truncate_selected_tables_failed": "Failed to truncate tables: {{error}}",
+  "sidebar.message.truncate_selected_tables_success": "Truncated {{count}} table(s).",
+  "sidebar.message.truncating_selected_tables": "Truncating {{count}} table(s)…",
   "sidebar.message.connection_config_not_found": "Connection configuration was not found.",
   "sidebar.message.connection_deleted": "Connection deleted.",
   "sidebar.message.connection_failed": "Connection failed: {{error}}",
@@ -7597,6 +7613,8 @@
   "sidebar.modal.batch_tables.title": "Batch object operations",
   "sidebar.modal.confirm_clear_selected_tables.content": "Clear data in selected objects under {{connection}} / {{database}}? This cannot be undone.",
   "sidebar.modal.confirm_clear_selected_tables.title": "Confirm clear selected tables",
+  "sidebar.modal.confirm_truncate_selected_tables.content": "Truncate data in {{count}} selected table(s) under {{connection}} / {{database}} (TRUNCATE)? This usually cannot be rolled back.",
+  "sidebar.modal.confirm_truncate_selected_tables.title": "Confirm truncate selected tables",
   "sidebar.modal.confirm_delete.title": "Confirm delete",
   "sidebar.modal.confirm_delete_connection.content": "Delete {{name}}?",
   "sidebar.modal.confirm_delete_database.content": "Delete {{name}}? This cannot be undone.",
diff --git a/shared/i18n/ja-JP.json b/shared/i18n/ja-JP.json
index 0e47384f..29b5fe51 100644
--- a/shared/i18n/ja-JP.json
+++ b/shared/i18n/ja-JP.json
@@ -2537,6 +2537,9 @@
   "app.connection_package.action.start_export": "エクスポート開始",
   "app.connection_package.action.start_import": "インポート開始",
   "app.connection_package.dialog.export_title": "接続をエクスポート",
+  "app.connection_package.dialog.export_connections_label": "エクスポートする接続",
+  "app.connection_package.dialog.export_connections_placeholder": "1 つ以上の接続を選択",
+  "app.connection_package.dialog.export_connections_summary": "選択済み {{selected}} / {{total}} 件",
   "app.connection_package.dialog.file_password_placeholder": "ファイル保護パスワードを入力（任意）",
   "app.connection_package.dialog.help.encrypted_passwords_recommend_file_password": "パスワードは暗号化されています。公開ネットワークで転送する場合は、ファイル保護パスワードの設定を推奨します。",
   "app.connection_package.dialog.help.exclude_passwords": "接続設定のみをエクスポートし、パスワードは含めません。",
@@ -2546,6 +2549,7 @@
   "app.connection_package.dialog.option.use_file_password": "ファイル保護パスワードを設定",
   "app.connection_package.dialog.restore_password_placeholder": "復元パッケージのパスワードを入力",
   "app.connection_package.error.export_capability_unavailable": "エクスポートに失敗しました: 現在のバックエンドは新しいエクスポート機能を提供していません",
+  "app.connection_package.error.no_selected_connections": "エクスポートする接続を 1 件以上選択してください",
   "app.connection_package.error.file_password_required": "ファイル保護パスワードは空にできません",
   "app.connection_package.error.import_capability_unavailable": "インポートに失敗しました: 現在のバックエンドは新しいインポート機能を提供していません",
   "app.connection_package.error.import_no_connections": "インポートに失敗しました: バックエンドが接続リストを返しませんでした",
@@ -3957,6 +3961,14 @@
   "data_export.workbench.helper.available_objects": "現在のデータベースで利用可能なオブジェクトは {{available}} 件、選択済みは {{selected}} 件です。",
   "data_export.workbench.helper.batch_database_output": "エクスポート開始時にまず出力ディレクトリを選択し、その後各データベースごとに個別の SQL ファイルを生成します。",
   "data_export.workbench.helper.batch_databases_start": "一括データベースエクスポートでは、まず出力ディレクトリを選択し、その後データベースごとに個別の SQL ファイルを生成し、右側に全体のデータベース進捗を表示します。",
+  "data_export.workbench.intent.label": "操作種別",
+  "data_export.workbench.intent.export": "エクスポート",
+  "data_export.workbench.intent.delete": "削除",
+  "data_export.workbench.intent.batch_tables_delete_description": "選択したテーブルをクリアまたは削除します。元に戻せません。",
+  "data_export.workbench.intent.batch_databases_delete_description": "選択したデータベースとその全データを削除します。元に戻せません。",
+  "data_export.workbench.helper.batch_tables_delete": "クリアまたは削除の前に対象環境を確認してください。",
+  "data_export.workbench.helper.batch_databases_delete": "削除の前に対象環境を確認してください。",
+  "data_export.workbench.strategy.batch_delete": "一括削除",
   "data_export.workbench.helper.batch_tables_start": "一括オブジェクトエクスポートでは 1 つの SQL ファイルを生成し、右側に全体のオブジェクト進捗と最近のタスク要約を表示します。",
   "data_export.workbench.helper.single_export_start": "エクスポート開始後、まず保存先ファイルを選択し、右側のメインパネルに単一の進捗バー、所要時間、出力パスを表示します。",
   "data_export.workbench.history.count": "{{count}} 件の記録",
@@ -7181,6 +7193,7 @@
   "sidebar.action.cancel": "キャンセル",
   "sidebar.action.clear_selection": "すべて解除",
   "sidebar.action.clear_tables": "テーブルをクリア",
+  "sidebar.action.truncate_tables": "テーブルを切り捨て",
   "sidebar.action.close": "閉じる",
   "sidebar.action.continue": "続行",
   "sidebar.action.delete": "削除",
@@ -7201,7 +7214,7 @@
   "sidebar.action.unpin_table": "テーブル固定を解除",
   "sidebar.active_connection.actions": "接続操作",
   "sidebar.active_connection.current_host_database": "現在の Host とデータベース",
-  "sidebar.active_connection.no_database_selected": "データベース未選択",
+  "sidebar.active_connection.no_database_selected": "データベースを選択してオブジェクトを表示",
   "sidebar.active_connection.no_host_selected": "Host 未選択",
   "sidebar.ai_prompt.explain.detail": "フィールドの意味、主キー/インデックス、想定される関連、典型的なクエリ場面、リスクを重点的に説明してください。",
   "sidebar.ai_prompt.explain.intro": "テーブル {{table}} の構造と業務上の意味を説明してください。",
@@ -7433,6 +7446,9 @@
   "sidebar.message.clear_failed": "クリアに失敗しました: {{error}}",
   "sidebar.message.clear_success": "クリア成功。",
   "sidebar.message.clearing_selected_tables": "選択した {{count}} 件のテーブルをクリアしています...",
+  "sidebar.message.truncate_selected_tables_failed": "テーブルの切り捨てに失敗: {{error}}",
+  "sidebar.message.truncate_selected_tables_success": "{{count}} テーブルを切り捨てました。",
+  "sidebar.message.truncating_selected_tables": "{{count}} テーブルを切り捨て中…",
   "sidebar.message.connection_config_not_found": "接続設定が見つかりません。",
   "sidebar.message.connection_deleted": "接続を削除しました。",
   "sidebar.message.connection_failed": "接続に失敗しました: {{error}}",
@@ -7597,6 +7613,8 @@
   "sidebar.modal.batch_tables.title": "オブジェクト一括操作",
   "sidebar.modal.confirm_clear_selected_tables.content": "{{connection}} / {{database}} の選択したオブジェクトのデータをクリアしますか？この操作は元に戻せません。",
   "sidebar.modal.confirm_clear_selected_tables.title": "選択したテーブルのクリアを確認",
+  "sidebar.modal.confirm_truncate_selected_tables.content": "{{connection}} / {{database}} の選択 {{count}} テーブルを TRUNCATE しますか？通常はロールバックできません。",
+  "sidebar.modal.confirm_truncate_selected_tables.title": "選択テーブルの切り捨て確認",
   "sidebar.modal.confirm_delete.title": "削除の確認",
   "sidebar.modal.confirm_delete_connection.content": "接続 {{name}} を削除しますか？",
   "sidebar.modal.confirm_delete_database.content": "{{name}} を削除しますか？この操作は元に戻せません。",
diff --git a/shared/i18n/ru-RU.json b/shared/i18n/ru-RU.json
index 8469a20b..c1347e55 100644
--- a/shared/i18n/ru-RU.json
+++ b/shared/i18n/ru-RU.json
@@ -2537,6 +2537,9 @@
   "app.connection_package.action.start_export": "Начать экспорт",
   "app.connection_package.action.start_import": "Начать импорт",
   "app.connection_package.dialog.export_title": "Экспорт подключений",
+  "app.connection_package.dialog.export_connections_label": "Подключения для экспорта",
+  "app.connection_package.dialog.export_connections_placeholder": "Выберите одно или несколько подключений",
+  "app.connection_package.dialog.export_connections_summary": "Выбрано {{selected}} / {{total}}",
   "app.connection_package.dialog.file_password_placeholder": "Введите пароль защиты файла (необязательно)",
   "app.connection_package.dialog.help.encrypted_passwords_recommend_file_password": "Пароли зашифрованы. Для передачи через публичную сеть рекомендуется задать пароль защиты файла.",
   "app.connection_package.dialog.help.exclude_passwords": "Будут экспортированы только настройки подключений. Пароли не включаются.",
@@ -2546,6 +2549,7 @@
   "app.connection_package.dialog.option.use_file_password": "Задать пароль защиты файла",
   "app.connection_package.dialog.restore_password_placeholder": "Введите пароль пакета восстановления",
   "app.connection_package.error.export_capability_unavailable": "Экспорт не выполнен: текущий backend не предоставляет новую возможность экспорта",
+  "app.connection_package.error.no_selected_connections": "Выберите хотя бы одно подключение для экспорта",
   "app.connection_package.error.file_password_required": "Пароль защиты файла не может быть пустым",
   "app.connection_package.error.import_capability_unavailable": "Импорт не выполнен: текущий backend не предоставляет новую возможность импорта",
   "app.connection_package.error.import_no_connections": "Импорт не выполнен: backend не вернул список подключений",
@@ -3957,6 +3961,14 @@
   "data_export.workbench.helper.available_objects": "В текущей базе доступно {{available}} объектов, выбрано {{selected}}.",
   "data_export.workbench.helper.batch_database_output": "При запуске экспорта сначала выберите выходной каталог, затем для каждой базы данных будут созданы отдельные SQL-файлы.",
   "data_export.workbench.helper.batch_databases_start": "При пакетном экспорте баз данных сначала выбирается выходной каталог, затем для каждой базы создаётся отдельный SQL-файл, а справа показывается общий прогресс.",
+  "data_export.workbench.intent.label": "Действие",
+  "data_export.workbench.intent.export": "Экспорт",
+  "data_export.workbench.intent.delete": "Удаление",
+  "data_export.workbench.intent.batch_tables_delete_description": "Очистить или удалить выбранные таблицы. Отменить нельзя.",
+  "data_export.workbench.intent.batch_databases_delete_description": "Удалить выбранные базы и все их данные. Отменить нельзя.",
+  "data_export.workbench.helper.batch_tables_delete": "Перед очисткой или удалением проверьте целевую среду.",
+  "data_export.workbench.helper.batch_databases_delete": "Перед удалением проверьте целевую среду.",
+  "data_export.workbench.strategy.batch_delete": "Пакетное удаление",
   "data_export.workbench.helper.batch_tables_start": "Пакетный экспорт объектов создаёт один SQL-файл и показывает справа общий прогресс по объектам и последние сводки задач.",
   "data_export.workbench.helper.single_export_start": "После запуска экспорта сначала выбирается целевой файл, а справа отображаются единый индикатор прогресса, длительность и путь вывода.",
   "data_export.workbench.history.count": "{{count}} записей",
@@ -7181,6 +7193,7 @@
   "sidebar.action.cancel": "Отмена",
   "sidebar.action.clear_selection": "Снять выбор со всех",
   "sidebar.action.clear_tables": "Очистить таблицы",
+  "sidebar.action.truncate_tables": "Очистить таблицы (TRUNCATE)",
   "sidebar.action.close": "Закрыть",
   "sidebar.action.continue": "Продолжить",
   "sidebar.action.delete": "Удалить",
@@ -7201,7 +7214,7 @@
   "sidebar.action.unpin_table": "Открепить таблицу",
   "sidebar.active_connection.actions": "Действия с подключением",
   "sidebar.active_connection.current_host_database": "Текущий Host и база данных",
-  "sidebar.active_connection.no_database_selected": "База данных не выбрана",
+  "sidebar.active_connection.no_database_selected": "Выберите БД для просмотра объектов",
   "sidebar.active_connection.no_host_selected": "Host не выбран",
   "sidebar.ai_prompt.explain.detail": "Особо опишите значения полей, первичные ключи/индексы, возможные связи, типовые сценарии запросов и риски.",
   "sidebar.ai_prompt.explain.intro": "Объясните структуру и бизнес-смысл таблицы {{table}}.",
@@ -7433,6 +7446,9 @@
   "sidebar.message.clear_failed": "Ошибка очистки: {{error}}",
   "sidebar.message.clear_success": "Очистка завершена.",
   "sidebar.message.clearing_selected_tables": "Очищаются выбранные таблицы: {{count}}...",
+  "sidebar.message.truncate_selected_tables_failed": "Не удалось выполнить TRUNCATE: {{error}}",
+  "sidebar.message.truncate_selected_tables_success": "TRUNCATE выполнен для {{count}} таблиц.",
+  "sidebar.message.truncating_selected_tables": "TRUNCATE {{count}} таблиц…",
   "sidebar.message.connection_config_not_found": "Конфигурация подключения не найдена.",
   "sidebar.message.connection_deleted": "Подключение удалено.",
   "sidebar.message.connection_failed": "Ошибка подключения: {{error}}",
@@ -7597,6 +7613,8 @@
   "sidebar.modal.batch_tables.title": "Пакетные операции с объектами",
   "sidebar.modal.confirm_clear_selected_tables.content": "Очистить данные выбранных объектов в {{connection}} / {{database}}? Это действие нельзя отменить.",
   "sidebar.modal.confirm_clear_selected_tables.title": "Подтвердите очистку выбранных таблиц",
+  "sidebar.modal.confirm_truncate_selected_tables.content": "Выполнить TRUNCATE для {{count}} выбранных таблиц в {{connection}} / {{database}}? Обычно откат невозможен.",
+  "sidebar.modal.confirm_truncate_selected_tables.title": "Подтвердите TRUNCATE выбранных таблиц",
   "sidebar.modal.confirm_delete.title": "Подтвердите удаление",
   "sidebar.modal.confirm_delete_connection.content": "Удалить {{name}}?",
   "sidebar.modal.confirm_delete_database.content": "Удалить {{name}}? Это действие нельзя отменить.",
diff --git a/shared/i18n/zh-CN.json b/shared/i18n/zh-CN.json
index e475e9b2..fb294d63 100644
--- a/shared/i18n/zh-CN.json
+++ b/shared/i18n/zh-CN.json
@@ -2537,6 +2537,9 @@
   "app.connection_package.action.start_export": "开始导出",
   "app.connection_package.action.start_import": "开始导入",
   "app.connection_package.dialog.export_title": "导出连接",
+  "app.connection_package.dialog.export_connections_label": "选择要导出的连接",
+  "app.connection_package.dialog.export_connections_placeholder": "选择一个或多个连接",
+  "app.connection_package.dialog.export_connections_summary": "已选 {{selected}} / {{total}} 个连接",
   "app.connection_package.dialog.file_password_placeholder": "请输入文件保护密码（可选）",
   "app.connection_package.dialog.help.encrypted_passwords_recommend_file_password": "密码已加密保护。如需通过公网传输，建议设置文件保护密码。",
   "app.connection_package.dialog.help.exclude_passwords": "将仅导出连接配置，不包含密码。",
@@ -2546,6 +2549,7 @@
   "app.connection_package.dialog.option.use_file_password": "设置文件保护密码",
   "app.connection_package.dialog.restore_password_placeholder": "请输入恢复包密码",
   "app.connection_package.error.export_capability_unavailable": "导出失败：当前后端未提供新版导出能力",
+  "app.connection_package.error.no_selected_connections": "请至少选择一个连接再导出",
   "app.connection_package.error.file_password_required": "文件保护密码不能为空",
   "app.connection_package.error.import_capability_unavailable": "导入失败：当前后端未提供新版导入能力",
   "app.connection_package.error.import_no_connections": "导入失败：后端未返回连接列表",
@@ -3957,6 +3961,14 @@
   "data_export.workbench.helper.available_objects": "当前库可选 {{available}} 个对象，已选 {{selected}} 个。",
   "data_export.workbench.helper.batch_database_output": "将在开始导出时先选择输出目录，再为每个数据库分别生成独立的 SQL 文件。",
   "data_export.workbench.helper.batch_databases_start": "批量库导出会先选择输出目录，再按库生成独立 SQL 文件，并在右侧展示整体库进度。",
+  "data_export.workbench.intent.label": "操作类型",
+  "data_export.workbench.intent.export": "导出",
+  "data_export.workbench.intent.delete": "删除",
+  "data_export.workbench.intent.batch_tables_delete_description": "清空或删除所选表，操作不可恢复。",
+  "data_export.workbench.intent.batch_databases_delete_description": "删除所选数据库及其全部数据，操作不可恢复。",
+  "data_export.workbench.helper.batch_tables_delete": "请先确认目标环境，再执行清空或删除。",
+  "data_export.workbench.helper.batch_databases_delete": "请先确认目标环境，再执行删除。",
+  "data_export.workbench.strategy.batch_delete": "批量删除",
   "data_export.workbench.helper.batch_tables_start": "批量对象导出会统一生成一个 SQL 文件，并在右侧展示整体对象进度与最近任务摘要。",
   "data_export.workbench.helper.single_export_start": "导出开始后会先选择目标文件，再在右侧主面板展示唯一进度条、导出耗时和输出路径。",
   "data_export.workbench.history.count": "{{count}} 条记录",
@@ -7181,6 +7193,7 @@
   "sidebar.action.cancel": "取消",
   "sidebar.action.clear_selection": "取消全选",
   "sidebar.action.clear_tables": "清空表",
+  "sidebar.action.truncate_tables": "截断表",
   "sidebar.action.close": "关闭",
   "sidebar.action.continue": "继续",
   "sidebar.action.delete": "删除",
@@ -7201,7 +7214,7 @@
   "sidebar.action.unpin_table": "取消置顶",
   "sidebar.active_connection.actions": "连接操作",
   "sidebar.active_connection.current_host_database": "当前 Host 与数据库",
-  "sidebar.active_connection.no_database_selected": "未选择数据库",
+  "sidebar.active_connection.no_database_selected": "选择数据库以浏览对象",
   "sidebar.active_connection.no_host_selected": "未选择 Host",
   "sidebar.ai_prompt.explain.detail": "重点说明字段含义、主键/索引、潜在关联关系、典型查询场景和风险点。",
   "sidebar.ai_prompt.explain.intro": "请解释数据表 {{table}} 的结构和业务含义。",
@@ -7433,6 +7446,9 @@
   "sidebar.message.clear_failed": "清空失败：{{error}}",
   "sidebar.message.clear_success": "清空成功。",
   "sidebar.message.clearing_selected_tables": "正在清空 {{count}} 个已选表...",
+  "sidebar.message.truncate_selected_tables_failed": "截断表失败：{{error}}",
+  "sidebar.message.truncate_selected_tables_success": "已截断 {{count}} 张表。",
+  "sidebar.message.truncating_selected_tables": "正在截断 {{count}} 张表…",
   "sidebar.message.connection_config_not_found": "未找到连接配置。",
   "sidebar.message.connection_deleted": "连接已删除。",
   "sidebar.message.connection_failed": "连接失败：{{error}}",
@@ -7597,6 +7613,8 @@
   "sidebar.modal.batch_tables.title": "批量操作表",
   "sidebar.modal.confirm_clear_selected_tables.content": "清空 {{connection}} / {{database}} 下已选对象的数据？此操作不可撤销。",
   "sidebar.modal.confirm_clear_selected_tables.title": "确认清空已选表",
+  "sidebar.modal.confirm_truncate_selected_tables.content": "截断 {{connection}} / {{database}} 下已选 {{count}} 张表的数据（TRUNCATE）？此操作通常不可回滚。",
+  "sidebar.modal.confirm_truncate_selected_tables.title": "确认截断已选表",
   "sidebar.modal.confirm_delete.title": "确认删除",
   "sidebar.modal.confirm_delete_connection.content": "删除连接 {{name}}？",
   "sidebar.modal.confirm_delete_database.content": "删除 {{name}}？此操作不可撤销。",
diff --git a/shared/i18n/zh-TW.json b/shared/i18n/zh-TW.json
index b266c047..f8d64004 100644
--- a/shared/i18n/zh-TW.json
+++ b/shared/i18n/zh-TW.json
@@ -2537,6 +2537,9 @@
   "app.connection_package.action.start_export": "開始匯出",
   "app.connection_package.action.start_import": "開始匯入",
   "app.connection_package.dialog.export_title": "匯出連線",
+  "app.connection_package.dialog.export_connections_label": "選擇要匯出的連線",
+  "app.connection_package.dialog.export_connections_placeholder": "選擇一個或多個連線",
+  "app.connection_package.dialog.export_connections_summary": "已選 {{selected}} / {{total}} 個連線",
   "app.connection_package.dialog.file_password_placeholder": "請輸入檔案保護密碼（選填）",
   "app.connection_package.dialog.help.encrypted_passwords_recommend_file_password": "密碼已加密保護。如需透過公網傳輸，建議設定檔案保護密碼。",
   "app.connection_package.dialog.help.exclude_passwords": "將只匯出連線設定，不包含密碼。",
@@ -2546,6 +2549,7 @@
   "app.connection_package.dialog.option.use_file_password": "設定檔案保護密碼",
   "app.connection_package.dialog.restore_password_placeholder": "請輸入恢復包密碼",
   "app.connection_package.error.export_capability_unavailable": "匯出失敗：目前後端未提供新版匯出能力",
+  "app.connection_package.error.no_selected_connections": "請至少選擇一個連線再匯出",
   "app.connection_package.error.file_password_required": "檔案保護密碼不能為空",
   "app.connection_package.error.import_capability_unavailable": "匯入失敗：目前後端未提供新版匯入能力",
   "app.connection_package.error.import_no_connections": "匯入失敗：後端未返回連線列表",
@@ -3957,6 +3961,14 @@
   "data_export.workbench.helper.available_objects": "目前資料庫可選 {{available}} 個物件，已選 {{selected}} 個。",
   "data_export.workbench.helper.batch_database_output": "開始匯出時會先選擇輸出目錄，再為每個資料庫分別產生獨立的 SQL 檔案。",
   "data_export.workbench.helper.batch_databases_start": "批量資料庫匯出會先選擇輸出目錄，再按庫產生獨立 SQL 檔案，並在右側顯示整體資料庫進度。",
+  "data_export.workbench.intent.label": "操作類型",
+  "data_export.workbench.intent.export": "匯出",
+  "data_export.workbench.intent.delete": "刪除",
+  "data_export.workbench.intent.batch_tables_delete_description": "清空或刪除所選資料表，操作不可恢復。",
+  "data_export.workbench.intent.batch_databases_delete_description": "刪除所選資料庫及其全部資料，操作不可恢復。",
+  "data_export.workbench.helper.batch_tables_delete": "請先確認目標環境，再執行清空或刪除。",
+  "data_export.workbench.helper.batch_databases_delete": "請先確認目標環境，再執行刪除。",
+  "data_export.workbench.strategy.batch_delete": "批次刪除",
   "data_export.workbench.helper.batch_tables_start": "批量物件匯出會統一產生一個 SQL 檔案，並在右側顯示整體物件進度與最近任務摘要。",
   "data_export.workbench.helper.single_export_start": "匯出開始後會先選擇目標檔案，再在右側主面板顯示唯一進度條、匯出耗時與輸出路徑。",
   "data_export.workbench.history.count": "{{count}} 筆記錄",
@@ -7181,6 +7193,7 @@
   "sidebar.action.cancel": "取消",
   "sidebar.action.clear_selection": "取消全選",
   "sidebar.action.clear_tables": "清除資料表",
+  "sidebar.action.truncate_tables": "截斷資料表",
   "sidebar.action.close": "關閉",
   "sidebar.action.continue": "繼續",
   "sidebar.action.delete": "刪除",
@@ -7201,7 +7214,7 @@
   "sidebar.action.unpin_table": "取消置頂",
   "sidebar.active_connection.actions": "連線操作",
   "sidebar.active_connection.current_host_database": "目前 Host 與資料庫",
-  "sidebar.active_connection.no_database_selected": "未選擇資料庫",
+  "sidebar.active_connection.no_database_selected": "選擇資料庫以瀏覽物件",
   "sidebar.active_connection.no_host_selected": "未選擇 Host",
   "sidebar.ai_prompt.explain.detail": "請重點說明欄位含義、主鍵/索引、潛在關聯、典型查詢場景與風險點。",
   "sidebar.ai_prompt.explain.intro": "請解釋資料表 {{table}} 的結構和業務含義。",
@@ -7433,6 +7446,9 @@
   "sidebar.message.clear_failed": "清除失敗：{{error}}",
   "sidebar.message.clear_success": "清除成功。",
   "sidebar.message.clearing_selected_tables": "正在清除 {{count}} 個已選資料表...",
+  "sidebar.message.truncate_selected_tables_failed": "截斷資料表失敗：{{error}}",
+  "sidebar.message.truncate_selected_tables_success": "已截斷 {{count}} 張資料表。",
+  "sidebar.message.truncating_selected_tables": "正在截斷 {{count}} 張資料表…",
   "sidebar.message.connection_config_not_found": "找不到連線設定。",
   "sidebar.message.connection_deleted": "連線已刪除。",
   "sidebar.message.connection_failed": "連線失敗：{{error}}",
@@ -7597,6 +7613,8 @@
   "sidebar.modal.batch_tables.title": "批次操作資料表",
   "sidebar.modal.confirm_clear_selected_tables.content": "清除 {{connection}} / {{database}} 下已選物件的資料？此操作無法復原。",
   "sidebar.modal.confirm_clear_selected_tables.title": "確認清除已選資料表",
+  "sidebar.modal.confirm_truncate_selected_tables.content": "截斷 {{connection}} / {{database}} 下已選 {{count}} 張資料表的資料（TRUNCATE）？此操作通常無法復原。",
+  "sidebar.modal.confirm_truncate_selected_tables.title": "確認截斷已選資料表",
   "sidebar.modal.confirm_delete.title": "確認刪除",
   "sidebar.modal.confirm_delete_connection.content": "刪除連線 {{name}}？",
   "sidebar.modal.confirm_delete_database.content": "刪除 {{name}}？此操作無法復原。",