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/es-toolkit/dist/object/mergeWith.js

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+const require_isPlainObject = require("../predicate/isPlainObject.js");
+const require_isUnsafeProperty = require("../_internal/isUnsafeProperty.js");
+//#region src/object/mergeWith.ts
+/**
+* Merges the properties of the source object into the target object.
+*
+* You can provide a custom `merge` function to control how properties are merged. It should return the value to be set in the target object.
+*
+* If it returns `undefined`, a default deep merge will be applied for arrays and objects:
+*
+* - If a property in the source object is an array or an object and the corresponding property in the target object is also an array or object, they will be merged.
+* - If a property in the source object is undefined, it will not overwrite a defined property in the target object.
+*
+* Note that this function mutates the target object.
+*
+* @param target - The target object into which the source object properties will be merged. This object is modified in place.
+* @param source - The source object whose properties will be merged into the target object.
+* @param merge - A custom merge function that defines how properties should be combined. It receives the following arguments:
+*   - `targetValue`: The current value of the property in the target object.
+*   - `sourceValue`: The value of the property in the source object.
+*   - `key`: The key of the property being merged.
+*   - `target`: The target object.
+*   - `source`: The source object.
+*
+* @returns The updated target object with properties from the source object merged in.
+*
+* @template T - Type of the target object.
+* @template S - Type of the source object.
+*
+* @example
+* const target = { a: 1, b: 2 };
+* const source = { b: 3, c: 4 };
+*
+* mergeWith(target, source, (targetValue, sourceValue) => {
+*   if (typeof targetValue === 'number' && typeof sourceValue === 'number') {
+*     return targetValue + sourceValue;
+*   }
+* });
+* // Returns { a: 1, b: 5, c: 4 }
+* @example
+* const target = { a: [1], b: [2] };
+* const source = { a: [3], b: [4] };
+*
+* const result = mergeWith(target, source, (objValue, srcValue) => {
+*   if (Array.isArray(objValue)) {
+*     return objValue.concat(srcValue);
+*   }
+* });
+*
+* expect(result).toEqual({ a: [1, 3], b: [2, 4] });
+*/
+function mergeWith(target, source, merge) {
+	const sourceKeys = Object.keys(source);
+	for (let i = 0; i < sourceKeys.length; i++) {
+		const key = sourceKeys[i];
+		if (require_isUnsafeProperty.isUnsafeProperty(key)) continue;
+		const sourceValue = source[key];
+		const targetValue = target[key];
+		const merged = merge(targetValue, sourceValue, key, target, source);
+		if (merged !== void 0) target[key] = merged;
+		else if (Array.isArray(sourceValue)) if (Array.isArray(targetValue)) target[key] = mergeWith(targetValue, sourceValue, merge);
+		else target[key] = mergeWith([], sourceValue, merge);
+		else if (require_isPlainObject.isPlainObject(sourceValue)) if (require_isPlainObject.isPlainObject(targetValue)) target[key] = mergeWith(targetValue, sourceValue, merge);
+		else target[key] = mergeWith({}, sourceValue, merge);
+		else if (targetValue === void 0 || sourceValue !== void 0) target[key] = sourceValue;
+	}
+	return target;
+}
+//#endregion
+exports.mergeWith = mergeWith;