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/@babel/helper-annotate-as-pure/README.md

@@ -0,0 +1,19 @@
+# @babel/helper-annotate-as-pure
+
+> Helper function to annotate paths and nodes with #__PURE__ comment
+
+See our website [@babel/helper-annotate-as-pure](https://babeljs.io/docs/babel-helper-annotate-as-pure) for more information.
+
+## Install
+
+Using npm:
+
+```sh
+npm install --save @babel/helper-annotate-as-pure
+```
+
+or using yarn:
+
+```sh
+yarn add @babel/helper-annotate-as-pure
+```