Fix localized SEO template parsing

tests/app-config.test.ts

@@ -50,4 +50,20 @@ describe("site settings helpers", () => {
 
     expect(settings).toEqual(buildDefaultSiteSettings("Fallback Name"));
   });
+
+  it("ignores legacy top-level title template values", () => {
+    const settings = parseSiteSettingsValue(
+      JSON.stringify({
+        titleTemplate: "{pageTitle} | moh-sass | Legacy",
+        locales: {
+          ar: {
+            siteName: "اسم الموقع",
+          },
+        },
+      }),
+      "Fallback Name",
+    );
+
+    expect(settings.locales.ar.titleTemplate).toBe("{pageTitle} | {siteName}");
+  });
 });