Unicode Escape Sequence Encoder
Encodes text into Unicode escape sequences "\uXXXX" with support for UTF-16 surrogate pairs.Example: "строка" → "\u0441\u0442\u0440\u043E\u043A\u0430".
Encodes text into Unicode escape sequences \uXXXX, allowing characters to be represented in hexadecimal form. Supports UTF-16 surrogate pairs, enabling correct encoding of characters from extended Unicode ranges, including emojis, mathematical symbols, and ideographs.