enumerate brands for brand rules

src/constants/rules.js

@@ -0,0 +1,28 @@
+/**
+ * @typedef {'cursor' | 'roo' | 'windsurf' | 'cline'} BrandRule
+ */
+
+/**
+ * Available brand rules for project initialization
+ * @type {BrandRule[]}
+ * @description Defines possible brand rule sets:
+ * - cursor: Cursor IDE rules (default)
+ * - roo: Roo Code IDE rules
+ * - windsurf: Windsurf IDE rules  
+ * - cline: Cline IDE rules
+ */
+export const BRAND_RULE_OPTIONS = [
+	'cursor',
+	'roo',
+	'windsurf',
+	'cline'
+];
+
+/**
+ * Check if a given brand rule is valid
+ * @param {string} brandRule - The brand rule to check
+ * @returns {boolean} True if the brand rule is valid, false otherwise
+ */
+export function isValidBrandRule(brandRule) {
+	return BRAND_RULE_OPTIONS.includes(brandRule);
+}