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/animation/AnimatedItems.js

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+function _slicedToArray(r, e) { return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest(); }
+function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
+function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
+function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
+function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t.return && (u = t.return(), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
+function _arrayWithHoles(r) { if (Array.isArray(r)) return r; }
+import * as React from 'react';
+import { useCallback, useState } from 'react';
+import { JavascriptAnimate } from './JavascriptAnimate';
+import { useAnimationId } from '../util/useAnimationId';
+import { matchAnimationItems, matchByIndex } from './matchBy';
+import { useAnimationStartSnapshot } from './useAnimationStartSnapshot';
+/**
+ * Hook that tracks animation state and provides callbacks for animation start/end.
+ *
+ * @param onAnimationStart optional callback to call when animation starts
+ * @param onAnimationEnd optional callback to call when animation ends
+ */
+export function useAnimationCallbacks(onAnimationStart, onAnimationEnd) {
+  var _useState = useState(false),
+    _useState2 = _slicedToArray(_useState, 2),
+    isAnimating = _useState2[0],
+    setIsAnimating = _useState2[1];
+  var handleAnimationStart = useCallback(() => {
+    if (typeof onAnimationStart === 'function') {
+      onAnimationStart();
+    }
+    setIsAnimating(true);
+  }, [onAnimationStart]);
+  var handleAnimationEnd = useCallback(() => {
+    if (typeof onAnimationEnd === 'function') {
+      onAnimationEnd();
+    }
+    setIsAnimating(false);
+  }, [onAnimationEnd]);
+  return {
+    isAnimating,
+    handleAnimationStart,
+    handleAnimationEnd
+  };
+}
+
+/**
+ * A function that interpolates animation items at a given time.
+ * This function receives an array of changes, and must "unwrap" them
+ * and interpolate appropriate values and return the result which Recharts will then render.
+ *
+ * @see {@link https://recharts.github.io/en-US/guide/animations/ Animations guide}
+ *
+ * @param items The tagged animation items describing what changed, or `null` on the very first render
+ *   (entrance animation). Each item is self-describing:
+ *   - `{ status: 'matched', prev, next }` — interpolate between `prev` and `next`
+ *   - `{ status: 'added', next }` — animate in from a computed entry position
+ *   - `{ status: 'removed', prev }` — animate out to a computed exit position
+ *
+ *   At `animationElapsedTime = 1`, removed items should be excluded from the result.
+ *
+ * @param animationElapsedTime A normalized time value (0 = start, 1 = end)
+ * @param layout of the chart, useful for deciding the direction of animation
+ * @returns The interpolated items at time animationElapsedTime
+ *
+ * @since 3.9
+ */
+
+/**
+ * A reusable animation wrapper for array-based chart data.
+ *
+ * Encapsulates the common animation pattern shared by Bar, Scatter, Funnel, Pie,
+ * Radar, RadialBar, Area, and Line:
+ * 1. Track previous items in a ref
+ * 2. Wrap in JavascriptAnimate
+ * 3. Update ref when animationElapsedTime > 0
+ *
+ * @since 3.9
+ */
+export function AnimatedItems(props) {
+  var _animationStartItems$;
+  var animationInput = props.animationInput,
+    animationIdPrefix = props.animationIdPrefix,
+    items = props.items,
+    previousItemsRef = props.previousItemsRef,
+    isAnimationActive = props.isAnimationActive,
+    animationBegin = props.animationBegin,
+    animationDuration = props.animationDuration,
+    animationEasing = props.animationEasing,
+    onAnimationStart = props.onAnimationStart,
+    onAnimationEnd = props.onAnimationEnd,
+    animationInterpolateFn = props.animationInterpolateFn,
+    animationMatchBy = props.animationMatchBy,
+    shouldUpdatePreviousRef = props.shouldUpdatePreviousRef,
+    children = props.children,
+    layout = props.layout;
+  var animationId = useAnimationId(animationInput, animationIdPrefix);
+  var animationStartItems = useAnimationStartSnapshot(animationId, previousItemsRef);
+  var rawPrevItems = (_animationStartItems$ = animationStartItems.startValue) !== null && _animationStartItems$ !== void 0 ? _animationStartItems$ : null;
+  var animationItems = matchAnimationItems(rawPrevItems, items, animationMatchBy !== null && animationMatchBy !== void 0 ? animationMatchBy : matchByIndex);
+  return /*#__PURE__*/React.createElement(JavascriptAnimate, {
+    animationId: animationId,
+    begin: animationBegin,
+    duration: animationDuration,
+    isActive: isAnimationActive,
+    easing: animationEasing,
+    onAnimationEnd: onAnimationEnd,
+    onAnimationStart: onAnimationStart,
+    key: animationId
+  }, animationElapsedTime => {
+    var isEntrance = rawPrevItems == null;
+    var stepData = items == null ? items : animationInterpolateFn(animationItems, animationElapsedTime, layout);
+    var canUpdate = shouldUpdatePreviousRef ? shouldUpdatePreviousRef(animationElapsedTime) : animationElapsedTime > 0;
+    animationStartItems.syncStepValue(stepData, animationElapsedTime, canUpdate);
+    if (stepData == null) {
+      return null;
+    }
+    return children(stepData, animationElapsedTime, isEntrance);
+  });
+}