build: exclude CLAUDE.md, .claude/, and internal-docs/ from grunt release

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: kiransbsf

Gruntfile.js

@@ -114,6 +114,9 @@ module.exports = function( grunt ) {
 					'!phpcs.xml',
 					'!phpcs.xml.dist',
 					'!admin/dashboard/assets/src/**',
+					'!CLAUDE.md',
+					'!.claude/**',
+					'!internal-docs/**',
 				],
 				dest: 'custom-fonts/'
 			}