refactor: batch changes to syscall bindings

[XuJiandong]

• The positions of offset and length are reversed; currently, length is followed by offset, which does not align with common conventions.
• The naming in JavaScript uses snake_case, but it should be changed to camelCase.
• In some places, JS_ToInt64 is used, which does not throw an exception on error. The types should be checked.
• Define all error codes in a single file and provide documentation comments.
• Ensure js_module_set_import_meta is set correctly.
• Remove dependency of nncp