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/map/hasValue.js

@@ -0,0 +1,33 @@
+const require_isEqualsSameValueZero = require("../_internal/isEqualsSameValueZero.js");
+//#region src/map/hasValue.ts
+/**
+* Checks if a Map contains a specific value.
+*
+* This function iterates through all values in the Map and checks if any value
+* is equal to the search element using SameValueZero comparison (similar to
+* Array.prototype.includes). This means that NaN is considered equal to NaN.
+*
+* @template K - The type of keys in the Map.
+* @template V - The type of values in the Map.
+* @param map - The Map to search.
+* @param searchElement - The value to search for.
+* @returns true if the Map contains the value, false otherwise.
+*
+* @example
+* const map = new Map([
+*   ['a', 1],
+*   ['b', 2],
+*   ['c', 3]
+* ]);
+* const result = hasValue(map, 2);
+* // result will be: true
+*
+* const result2 = hasValue(map, 5);
+* // result2 will be: false
+*/
+function hasValue(map, searchElement) {
+	for (const value of map.values()) if (require_isEqualsSameValueZero.isEqualsSameValueZero(value, searchElement)) return true;
+	return false;
+}
+//#endregion
+exports.hasValue = hasValue;