Add settings page for managing forecasting API key and URL via UI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/node_modules/lucide-react/dist/esm/icons/infinity.js

@@ -0,0 +1,21 @@
+/**
+ * @license lucide-react v0.468.0 - ISC
+ *
+ * This source code is licensed under the ISC license.
+ * See the LICENSE file in the root directory of this source tree.
+ */
+
+import createLucideIcon from '../createLucideIcon.js';
+
+const Infinity = createLucideIcon("Infinity", [
+  [
+    "path",
+    {
+      d: "M12 12c-2-2.67-4-4-6-4a4 4 0 1 0 0 8c2 0 4-1.33 6-4Zm0 0c2 2.67 4 4 6 4a4 4 0 0 0 0-8c-2 0-4 1.33-6 4Z",
+      key: "1z0uae"
+    }
+  ]
+]);
+
+export { Infinity as default };
+//# sourceMappingURL=infinity.js.map