feat: allow dashboard section reordering

lib/dashboard-sections.ts

@@ -1,12 +1,30 @@
 import type { TranslationKey } from "@/lib/i18n";
 
 export const DASHBOARD_SECTION_SETTINGS = [
+  {
+    id: "warnings",
+    titleKey: "settings.dashboardSections.warnings.title",
+    descriptionKey: "settings.dashboardSections.warnings.description",
+    defaultVisible: true,
+  },
   {
     id: "weatherBrief",
     titleKey: "settings.dashboardSections.weatherBrief.title",
     descriptionKey: "settings.dashboardSections.weatherBrief.description",
     defaultVisible: true,
   },
+  {
+    id: "forecast",
+    titleKey: "settings.dashboardSections.forecast.title",
+    descriptionKey: "settings.dashboardSections.forecast.description",
+    defaultVisible: true,
+  },
+  {
+    id: "favorites",
+    titleKey: "settings.dashboardSections.favorites.title",
+    descriptionKey: "settings.dashboardSections.favorites.description",
+    defaultVisible: true,
+  },
   {
     id: "featuredStations",
     titleKey: "settings.dashboardSections.featuredStations.title",
@@ -23,6 +41,11 @@ export const DASHBOARD_SECTION_SETTINGS = [
 export type DashboardSectionId = (typeof DASHBOARD_SECTION_SETTINGS)[number]["id"];
 
 export type DashboardSectionVisibility = Record<DashboardSectionId, boolean>;
+export type DashboardSectionOrder = DashboardSectionId[];
+
+export const DEFAULT_DASHBOARD_SECTION_ORDER = DASHBOARD_SECTION_SETTINGS.map(
+  (section) => section.id,
+) as DashboardSectionOrder;
 
 export const DEFAULT_DASHBOARD_SECTION_VISIBILITY = DASHBOARD_SECTION_SETTINGS.reduce(
   (visibility, section) => ({
@@ -42,3 +65,14 @@ export function normalizeDashboardSectionVisibility(value: unknown): DashboardSe
     {} as DashboardSectionVisibility,
   );
 }
+
+export function normalizeDashboardSectionOrder(value: unknown): DashboardSectionOrder {
+  const allowedIds = new Set<DashboardSectionId>(DASHBOARD_SECTION_SETTINGS.map((section) => section.id));
+  const stored = Array.isArray(value)
+    ? value.filter((sectionId): sectionId is DashboardSectionId => allowedIds.has(sectionId as DashboardSectionId))
+    : [];
+  return [
+    ...stored,
+    ...DEFAULT_DASHBOARD_SECTION_ORDER.filter((sectionId) => !stored.includes(sectionId)),
+  ] as DashboardSectionOrder;
+}