feat: persist page size setting across restarts

Store the data grid page size in EditorSettings (localStorage) so the
user's chosen rows-per-page survives app restarts.

src/components/grid/DataGrid.vue

@@ -84,8 +84,10 @@ import { useDataGridExport } from "@/composables/useDataGridExport";
 import { useDataGridColumnResize } from "@/composables/useDataGridColumnResize";
 import { useDataGridSelection } from "@/composables/useDataGridSelection";
 import { useDataGridEditor } from "@/composables/useDataGridEditor";
+import { useSettingsStore } from "@/stores/settingsStore";
 
 const { t } = useI18n();
+const settingsStore = useSettingsStore();
 const { toast } = useToast();
 
 const props = defineProps<{
@@ -825,7 +827,7 @@ watch(
 );
 
 // --- Pagination ---
-const pageSize = ref(100);
+const pageSize = ref(settingsStore.editorSettings.pageSize);
 const currentPage = ref(1);
 const isFullPage = computed(() => props.result.rows.length >= pageSize.value);
 const isResultsContext = computed(() => props.context === "results");
@@ -909,6 +911,7 @@ function nextPage() {
 }
 function changePageSize(size: number) {
   pageSize.value = size;
+  settingsStore.updateEditorSettings({ pageSize: size });
   currentPage.value = 1;
   resetGridVerticalScroll(true);
   emit("paginate", 0, size, currentWhereInput(), currentOrderBy());

src/stores/settingsStore.ts

@@ -50,6 +50,7 @@ export interface EditorSettings {
   executeMode: "all" | "current";
   wordWrap: boolean;
   appLayout: "separated" | "classic";
+  pageSize: number;
 }
 
 export const EDITOR_THEMES: { value: EditorTheme; label: string; dark: boolean }[] = [
@@ -81,6 +82,7 @@ export const DEFAULT_EDITOR_SETTINGS: EditorSettings = {
   executeMode: "all",
   wordWrap: false,
   appLayout: "classic",
+  pageSize: 100,
 };
 
 export const STORAGE_KEY = "dbx-editor-settings";
@@ -99,6 +101,7 @@ function loadEditorSettings(): EditorSettings {
         executeMode: parsed.executeMode ?? DEFAULT_EDITOR_SETTINGS.executeMode,
         wordWrap: parsed.wordWrap ?? DEFAULT_EDITOR_SETTINGS.wordWrap,
         appLayout: parsed.appLayout ?? DEFAULT_EDITOR_SETTINGS.appLayout,
+        pageSize: parsed.pageSize ?? DEFAULT_EDITOR_SETTINGS.pageSize,
       };
     }
   } catch {