fix(grid): preserve column filters across tab eviction

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

@@ -211,6 +211,7 @@ import { filterObjectBrowserTableColumns } from "@/lib/table/objectBrowserTableI
 import { reserveDataGridHeaderLine } from "@/lib/dataGrid/dataGridHeaderLayout";
 import { supportsTableStructureEditing } from "@/lib/database/databaseCapabilities";
 import { rememberDataGridConditionHistory } from "@/lib/dataGrid/dataGridConditionHistory";
+import { restoreDataGridLocalColumnFilters, serializeDataGridLocalColumnFilters } from "@/lib/dataGrid/dataGridLocalColumnFilterState";
 import { effectiveDatabaseTypeForConnection } from "@/lib/database/jdbcDialect";
 import { dataGridConditionColumnOptions } from "@/lib/dataGrid/dataGridConditionCompletion";
 import { isMacOS } from "@/lib/backend/platform";
@@ -344,6 +345,7 @@ const emit = defineEmits<{
   sort: [column: string, columnIndex: number, direction: "asc" | "desc" | null, whereInput?: string, mode?: DataGridSortMode];
   "update:whereInput": [value: string];
   "update:orderByInput": [value: string];
+  "local-column-filters-change": [value: Record<string, string[]>];
 }>();
 
 const autoRefresh = useDataGridAutoRefresh({ canRefresh: computed(() => !isSaving.value && !props.loading), refresh: onToolbarRefresh });
@@ -624,7 +626,7 @@ type FilterMode = DataGridContextFilterMode;
 
 type StructuredFilterRule = DataGridStructuredFilterRule;
 
-const localColumnFilters = ref<Record<number, Set<string>>>({});
+const localColumnFilters = ref<Record<number, Set<string>>>(restoreDataGridLocalColumnFilters(props.result.local_column_filters, props.result.columns.length));
 const localFilterOpenColumn = ref<number | null>(null);
 const headerActionMenuOpenColumn = ref<number | null>(null);
 const headerSortMenuOpenColumn = ref<number | null>(null);
@@ -641,6 +643,8 @@ const serverFilterValueByKey = ref<Map<string, CellValue>>(new Map());
 const serverColumnFilters = ref<Record<number, DataGridCachedServerColumnFilter>>({});
 let serverFilterRequestId = 0;
 let serverFilterSearchTimer: ReturnType<typeof window.setTimeout> | undefined;
+
+watch(localColumnFilters, (filters) => emit("local-column-filters-change", serializeDataGridLocalColumnFilters(filters)), { deep: true });
 const allFilterModeOptions: Array<{ value: FilterMode; labelKey: string }> = [
   { value: "equals", labelKey: "grid.filterBuilderEquals" },
   { value: "not-equals", labelKey: "grid.filterBuilderNotEquals" },

apps/desktop/src/components/layout/ContentArea.vue

@@ -1198,6 +1198,7 @@ defineExpose({ focusSearch, refreshData, refreshQueryEditorCompletionCache, hand
                 :all-export-results="allResultExportSheets"
                 :export-file-base-name="activeTab.title"
                 @update:order-by-input="(v: string) => (activeTab.orderByInput = v)"
+                @local-column-filters-change="(filters: Record<string, string[]>) => queryStore.updateDataGridLocalColumnFilters(activeTab.id, filters)"
                 @reload="(sql?: string, searchText?: string, whereInput?: string, orderBy?: string, limit?: number, offset?: number, intent?: DataGridReloadIntent) => emit('reload', sql, searchText, whereInput, orderBy, limit, offset, intent)"
                 @paginate="(offset: number, limit: number, whereInput?: string, orderBy?: string) => emit('paginate', offset, limit, whereInput, orderBy)"
                 @sort="(column: string, columnIndex: number, direction: 'asc' | 'desc' | null, whereInput?: string, mode?: DataGridSortMode) => emit('sort', column, columnIndex, direction, whereInput, mode)"
@@ -1525,6 +1526,7 @@ defineExpose({ focusSearch, refreshData, refreshQueryEditorCompletionCache, hand
           :export-file-base-name="activeTab.title"
           @update:where-input="(v: string) => (activeTab.whereInput = v)"
           @update:order-by-input="(v: string) => (activeTab.orderByInput = v)"
+          @local-column-filters-change="(filters: Record<string, string[]>) => queryStore.updateDataGridLocalColumnFilters(activeTab.id, filters)"
           @reload="(sql?: string, searchText?: string, whereInput?: string, orderBy?: string, limit?: number, offset?: number, intent?: DataGridReloadIntent) => emit('reload', sql, searchText, whereInput, orderBy, limit, offset, intent)"
           @paginate="(offset: number, limit: number, whereInput?: string, orderBy?: string) => emit('paginate', offset, limit, whereInput, orderBy)"
           @sort="(column: string, columnIndex: number, direction: 'asc' | 'desc' | null, whereInput?: string, mode?: DataGridSortMode) => emit('sort', column, columnIndex, direction, whereInput, mode)"