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/recharts/es6/cartesian/ZAxis.js

@@ -0,0 +1,61 @@
+import * as React from 'react';
+import { useLayoutEffect, useRef } from 'react';
+import { addZAxis, removeZAxis, replaceZAxis } from '../state/cartesianAxisSlice';
+import { useAppDispatch } from '../state/hooks';
+import { implicitZAxis } from '../state/selectors/axisSelectors';
+import { resolveDefaultProps } from '../util/resolveDefaultProps';
+function SetZAxisSettings(settings) {
+  var dispatch = useAppDispatch();
+  var prevSettingsRef = useRef(null);
+  useLayoutEffect(() => {
+    if (prevSettingsRef.current === null) {
+      dispatch(addZAxis(settings));
+    } else if (prevSettingsRef.current !== settings) {
+      dispatch(replaceZAxis({
+        prev: prevSettingsRef.current,
+        next: settings
+      }));
+    }
+    prevSettingsRef.current = settings;
+  }, [settings, dispatch]);
+  useLayoutEffect(() => {
+    return () => {
+      if (prevSettingsRef.current) {
+        dispatch(removeZAxis(prevSettingsRef.current));
+        prevSettingsRef.current = null;
+      }
+    };
+  }, [dispatch]);
+  return null;
+}
+export var zAxisDefaultProps = {
+  zAxisId: 0,
+  range: implicitZAxis.range,
+  scale: implicitZAxis.scale,
+  type: implicitZAxis.type
+};
+
+/**
+ * Virtual axis, does not render anything itself. Has no ticks, grid lines, or labels.
+ * Useful for dynamically setting Scatter point size, based on data.
+ *
+ * @consumes CartesianViewBoxContext
+ */
+export function ZAxis(outsideProps) {
+  var props = resolveDefaultProps(outsideProps, zAxisDefaultProps);
+  return /*#__PURE__*/React.createElement(SetZAxisSettings, {
+    domain: props.domain,
+    id: props.zAxisId,
+    dataKey: props.dataKey,
+    name: props.name,
+    unit: props.unit,
+    range: props.range,
+    scale: props.scale,
+    type: props.type,
+    allowDuplicatedCategory: implicitZAxis.allowDuplicatedCategory,
+    allowDataOverflow: implicitZAxis.allowDataOverflow,
+    reversed: implicitZAxis.reversed,
+    includeHidden: implicitZAxis.includeHidden
+  });
+}
+ZAxis.displayName = 'ZAxis';