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/renderedTicksSlice.js

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+/**
+ * @fileOverview this stores actually rendered ticks.
+ *
+ * What we do is that we have the domain -> ticks mapping in the cartesianSlice,
+ * which is fine but the result then goes to CartesianAxis where we use DOM measurement
+ * to decide which ticks to actually render.
+ *
+ * This renderedTickSlice stores those actually rendered ticks so that we can return them from a hook later.
+ */
+import { createSlice } from '@reduxjs/toolkit';
+import { castDraft } from 'immer';
+var initialState = {
+  xAxis: {},
+  yAxis: {}
+};
+export var renderedTicksSlice = createSlice({
+  name: 'renderedTicks',
+  initialState,
+  reducers: {
+    setRenderedTicks: (state, action) => {
+      var _action$payload = action.payload,
+        axisType = _action$payload.axisType,
+        axisId = _action$payload.axisId,
+        ticks = _action$payload.ticks;
+      state[axisType][axisId] = castDraft(ticks);
+    },
+    removeRenderedTicks: (state, action) => {
+      var _action$payload2 = action.payload,
+        axisType = _action$payload2.axisType,
+        axisId = _action$payload2.axisId;
+      delete state[axisType][axisId];
+    }
+  }
+});
+var _renderedTicksSlice$a = renderedTicksSlice.actions,
+  setRenderedTicks = _renderedTicksSlice$a.setRenderedTicks,
+  removeRenderedTicks = _renderedTicksSlice$a.removeRenderedTicks;
+export { setRenderedTicks, removeRenderedTicks };
+export var renderedTicksReducer = renderedTicksSlice.reducer;