This pattern lists all 18 items exactly as alternations, carefully escaping only those characters that are special in a JavaScript regex (dots, plus signs, parentheses, brackets, braces, slashes, and backslashes). Double quotes and other characters are matched literally without extra escapes. Each IPv6 address, quoted email, JSON object, angled schedule, hashed product code, and URL is included as-is in an alternation branch so that only those exact strings are matched.