Fix runtime default locale resolution

app/[locale]/(site)/portfolio/page.tsx

@@ -6,8 +6,9 @@ import { Container } from "@/components/layout/container";
 import { PageHero } from "@/components/layout/page-hero";
 import { PortfolioCategoryFilter } from "@/components/site/portfolio-category-filter";
 import { PortfolioProjectGrid } from "@/components/site/portfolio-project-grid";
+import { getSiteSettings } from "@/lib/app-config";
 import { buildLocalizedMetadata } from "@/lib/metadata";
-import { getLocalizedPath, resolveLocale } from "@/lib/locale";
+import { FALLBACK_LOCALE, getLocalizedPath, resolveLocale } from "@/lib/locale";
 import { getActivePortfolioCategories, getPublishedPortfolioProjects } from "@/lib/portfolio";
 
 type PortfolioPageProps = {
@@ -23,7 +24,7 @@ export const dynamic = "force-dynamic";
 
 export async function generateMetadata({ params }: PortfolioPageProps): Promise<Metadata> {
   const { locale } = await params;
-  const localeKey = resolveLocale(locale);
+  const localeKey = resolveLocale(locale, FALLBACK_LOCALE);
   const t = await getTranslations({ locale: localeKey, namespace: "portfolioPage" });
 
   return await buildLocalizedMetadata({
@@ -42,12 +43,15 @@ export default async function PortfolioPage({
     params,
     searchParams,
   ]);
-  const localeKey = resolveLocale(locale);
-  const t = await getTranslations({ locale: localeKey, namespace: "portfolioPage" });
+  const localeKey = resolveLocale(locale, FALLBACK_LOCALE);
+  const [t, siteSettings] = await Promise.all([
+    getTranslations({ locale: localeKey, namespace: "portfolioPage" }),
+    getSiteSettings(),
+  ]);
   const selectedCategory = resolvedSearchParams?.category ?? "";
 
   if (selectedCategory) {
-    redirect(getLocalizedPath(localeKey, `/portfolio/category/${selectedCategory}`));
+    redirect(getLocalizedPath(localeKey, `/portfolio/category/${selectedCategory}`, siteSettings.defaultLocale));
   }
 
   const [categories, projects] = await Promise.all([
@@ -65,9 +69,15 @@ export default async function PortfolioPage({
       />
 
       <Container className="flex flex-col gap-section pb-12 lg:pb-16">
-        <PortfolioCategoryFilter locale={localeKey} categories={categories} allLabel={t("all")} />
+        <PortfolioCategoryFilter
+          locale={localeKey}
+          defaultLocale={siteSettings.defaultLocale}
+          categories={categories}
+          allLabel={t("all")}
+        />
         <PortfolioProjectGrid
           locale={localeKey}
+          defaultLocale={siteSettings.defaultLocale}
           projects={projects}
           emptyLabel={t("empty")}
           openLabel={t("open")}