feat: implement GET endpoint for weather widget feature flag

Author: py-dev-nandini-12

src/app/api/flags/route.ts

@@ -0,0 +1,16 @@
+import "@vercel/flags/next";
+
+export async function GET() {
+  const isEnabled = unstable_flag("WeatherWidgetEnabled", false);
+  return new Response(JSON.stringify({ isEnabled }), {
+    headers: { "Content-Type": "application/json" },
+  });
+}
+function unstable_flag(flagName: string, defaultValue: boolean): boolean {
+  // Simulate a feature flag check. In a real-world scenario, this might query a database or an external service.
+  const featureFlags: Record<string, boolean> = {
+    WeatherWidgetEnabled: true, // Example flag
+  };
+
+  return featureFlags[flagName] ?? defaultValue;
+}