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/string/words.mjs

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+//#region src/string/words.ts
+/**
+* Regular expression pattern to split strings into words for various case conversions
+*
+* This pattern matches sequences of characters in a string, considering the following cases:
+* - Sequences of two or more uppercase letters followed by an uppercase letter and lowercase letters or digits (for acronyms)
+* - Sequences of one uppercase letter optionally followed by lowercase letters and digits
+* - Single uppercase letters
+* - Sequences of digits
+* - Emojis and other Unicode characters
+*
+* The resulting match can be used to convert camelCase, snake_case, kebab-case, and other mixed formats into
+* a consistent format like snake case. It also supports emojis and other Unicode characters.
+*
+* @example
+* const matches = 'camelCaseHTTPRequest🚀'.match(CASE_SPLIT_PATTERN);
+* // matches: ['camel', 'Case', 'HTTP', 'Request', '🚀']
+*/
+const CASE_SPLIT_PATTERN = /\p{Lu}?\p{Ll}+|[0-9]+|\p{Lu}+(?!\p{Ll})|\p{Emoji_Presentation}|\p{Extended_Pictographic}|\p{L}+/gu;
+/**
+* Splits `string` into an array of its words, treating spaces and punctuation marks as separators.
+*
+* @param str The string to inspect.
+* @param [pattern] The pattern to match words.
+* @returns Returns the words of `string`.
+*
+* @example
+* words('fred, barney, & pebbles');
+* // => ['fred', 'barney', 'pebbles']
+*
+* words('camelCaseHTTPRequest🚀');
+* // => ['camel', 'Case', 'HTTP', 'Request', '🚀']
+*
+* words('Lunedì 18 Set')
+* // => ['Lunedì', '18', 'Set']
+*/
+function words(str) {
+	return Array.from(str.match(CASE_SPLIT_PATTERN) ?? []);
+}
+//#endregion
+export { words };