OWM-API-Schlüssel explizit über aktive User-ID laden.

Wetter-Abruf nutzt getOwmApiKeyForActiveUser(), damit namespaced Keys nicht am fehlenden active_userid vorbeilaufen.

Co-authored-by: Cursor <cursoragent@cursor.com>

client/src/services/userPreferences.ts

@@ -35,7 +35,7 @@ function migrateLegacyPrefs(userId: string): void {
 }
 
 function resolveUserId(userId?: string | null): string | null {
-  const id = userId ?? getActiveUserId()
+  const id = (userId?.trim() || getActiveUserId()?.trim()) || null
   if (!id) return null
   migrateLegacyPrefs(id)
   return id
@@ -75,6 +75,11 @@ export function getOwmApiKey(userId?: string | null): string {
   return localStorage.getItem(LEGACY_OWM_KEY) ?? ''
 }
 
+/** OWM key for the signed-in user (`active_userid`). Prefer this over a bare `getOwmApiKey()` call. */
+export function getOwmApiKeyForActiveUser(): string {
+  return getOwmApiKey(getActiveUserId())
+}
+
 export function setOwmApiKey(userId: string, value: string): void {
   migrateLegacyPrefs(userId)
   const trimmed = value.trim()