Issue: Locale-dependent case normalization causes inconsistent behavior under Turkish locale

Issue: Locale-dependent case normalization causes inconsistent behavior under Turkish locale: a task in LegoFlow-SWE (Harbor dataset). jsoup currently performs various case-normalization operations using Java’s default-locale case conversion (e.g., calling String.toLowerCase() without a locale)…

The task

jsoup currently performs various case-normalization operations using Java’s default-locale case conversion (e.g., calling `String.toLowerCase()` without a locale). When the JVM default locale is set to Turkish (`"tr"`) or similar locales, the behavior of ASCII/English case-insensitive operations changes, leading to…

Part of Lego-X/LegoFlow-SWE.