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/file-pen-line.js

@@ -0,0 +1,29 @@
+/**
+ * @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 FilePenLine = createLucideIcon("FilePenLine", [
+  [
+    "path",
+    {
+      d: "m18 5-2.414-2.414A2 2 0 0 0 14.172 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2",
+      key: "142zxg"
+    }
+  ],
+  [
+    "path",
+    {
+      d: "M21.378 12.626a1 1 0 0 0-3.004-3.004l-4.01 4.012a2 2 0 0 0-.506.854l-.837 2.87a.5.5 0 0 0 .62.62l2.87-.837a2 2 0 0 0 .854-.506z",
+      key: "2t3380"
+    }
+  ],
+  ["path", { d: "M8 18h1", key: "13wk12" }]
+]);
+
+export { FilePenLine as default };
+//# sourceMappingURL=file-pen-line.js.map