feat: add configurable wind units

lib/notification-api.ts

@@ -1,5 +1,6 @@
 import type { Language } from "@/lib/i18n";
 import type { Province } from "@/types/province";
+import type { WindSpeedUnit } from "@/types/units";
 
 interface VapidKeyResponse {
   configured: boolean;
@@ -19,6 +20,7 @@ interface SavePushSubscriptionOptions {
   longitude?: number | null;
   locationName?: string | null;
   countyTeryt?: string | null;
+  windSpeedUnit?: WindSpeedUnit;
 }
 
 export async function savePushSubscription(subscription: PushSubscription, province: Province, language: Language, options: SavePushSubscriptionOptions = {}) {
@@ -36,6 +38,7 @@ export async function savePushSubscription(subscription: PushSubscription, provi
       longitude: options.longitude ?? null,
       locationName: options.locationName ?? null,
       countyTeryt: options.countyTeryt ?? null,
+      windSpeedUnit: options.windSpeedUnit,
     }),
   });
   if (!response.ok) throw new Error("Unable to save push subscription.");