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/state/polarAxisSlice.js

@@ -0,0 +1,31 @@
+import { createSlice } from '@reduxjs/toolkit';
+import { castDraft } from 'immer';
+var initialState = {
+  radiusAxis: {},
+  angleAxis: {}
+};
+var polarAxisSlice = createSlice({
+  name: 'polarAxis',
+  initialState,
+  reducers: {
+    addRadiusAxis(state, action) {
+      state.radiusAxis[action.payload.id] = castDraft(action.payload);
+    },
+    removeRadiusAxis(state, action) {
+      delete state.radiusAxis[action.payload.id];
+    },
+    addAngleAxis(state, action) {
+      state.angleAxis[action.payload.id] = castDraft(action.payload);
+    },
+    removeAngleAxis(state, action) {
+      delete state.angleAxis[action.payload.id];
+    }
+  }
+});
+var _polarAxisSlice$actio = polarAxisSlice.actions,
+  addRadiusAxis = _polarAxisSlice$actio.addRadiusAxis,
+  removeRadiusAxis = _polarAxisSlice$actio.removeRadiusAxis,
+  addAngleAxis = _polarAxisSlice$actio.addAngleAxis,
+  removeAngleAxis = _polarAxisSlice$actio.removeAngleAxis;
+export { addRadiusAxis, removeRadiusAxis, addAngleAxis, removeAngleAxis };
+export var polarAxisReducer = polarAxisSlice.reducer;