perf(export): 优化导出ui体验和性能

* docs(getting-started): set brew upgrade to use official homebrew cask

* fix(mysql): make admin show handling dialect aware

* fix(data-compare): create missing target tables during sync

* feat(sql): suggest join conditions from foreign keys

* fix(sidebar): use filtered order for range selection

* fix(tabs): close connection tabs on disconnect

* fix(sqlserver): execute cte queries without wrapping

* fix(opengauss): open table structure editor

* perf(export): 优化导出ui体验和性能

* perf(export): 优化导出ui体验和性能

* fix(export): normalize status casing and fix web route issues

- Add missing table export web routes (POST /export/table, SSE progress, cancel)
- Fix tauri table export Promise to wait for terminal events
- Change cancel to return Ok(()) so it doesn't get overwritten as Error
- Unify ExportStatus to PascalCase across all frontend components
- Fix http.ts table export POST body wrapping
- Fix duplicate pub mod in dbx-web routes

* fix(export): return export file for browser download in web mode

Write table export output to temp dir, register a download endpoint,
and trigger browser download from the frontend when export completes.

* fix(export): avoid table export progress races

---------

Co-authored-by: Francesco Lucarelli <francesco06lucarelli@gmail.com>
Co-authored-by: t8y2 <1156263951@qq.com>
Co-authored-by: dqn <someonegdeng@qq.com>

apps/desktop/src/components/grid/DataGrid.vue

@@ -181,6 +181,7 @@ import {
 
 import { useToast } from "@/composables/useToast";
 import { useDataGridExport } from "@/composables/useDataGridExport";
+import ExportProgressDialog from "@/components/export/ExportProgressDialog.vue";
 import { DATA_GRID_ROW_NUM_WIDTH, useDataGridColumnResize } from "@/composables/useDataGridColumnResize";
 import { useDataGridSelection } from "@/composables/useDataGridSelection";
 import { useDataGridEditor } from "@/composables/useDataGridEditor";
@@ -3432,6 +3433,18 @@ function setRowStatusFilter(value: string) {
   rowStatusFilter.value = value as RowStatusFilter;
 }
 
+// --- Export progress dialog state ---
+const exportProgressDialog = ref(false);
+const exportProgressState = ref({
+  title: "",
+  tableName: "",
+  format: "csv" as string,
+  rowsExported: 0,
+  totalRows: null as number | null,
+  status: "",
+  errorMessage: null as string | null,
+});
+
 // --- Export composable ---
 const {
   copyText,
@@ -3473,6 +3486,8 @@ const {
   selectedRowIds,
   hasRowSelection,
   fullExportResult: props.fullExportResult,
+  exportProgressDialog,
+  exportProgressState,
 });
 
 const pageSizeMenuItems = computed(() =>
@@ -7692,6 +7707,7 @@ const gridContextMenuItems = computed<ContextMenuItem[]>(() => {
       @confirm="confirmDeleteRow"
     />
     <ImagePreviewDialog v-model:open="imagePreviewOpen" :src="imagePreviewSrc" :title="imagePreviewTitle" />
+    <ExportProgressDialog v-model:open="exportProgressDialog" v-bind="exportProgressState" disable-cancel />
   </div>
 </template>