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/redux-thunk/dist/redux-thunk.mjs

@@ -0,0 +1,16 @@
+// src/index.ts
+function createThunkMiddleware(extraArgument) {
+  const middleware = ({ dispatch, getState }) => (next) => (action) => {
+    if (typeof action === "function") {
+      return action(dispatch, getState, extraArgument);
+    }
+    return next(action);
+  };
+  return middleware;
+}
+var thunk = createThunkMiddleware();
+var withExtraArgument = createThunkMiddleware;
+export {
+  thunk,
+  withExtraArgument
+};