osrm.backend 0.2.0

Breaking Changes

• The osrm.server.log_file option no longer accepts a list for separate stdout/stderr files.
  This feature has been removed due to potential deadlock issues. Use a single character path
  instead: options(osrm.server.log_file = "path/to/logfile.log"). If a list is provided,
  it will silently fall back to the default temporary file behavior.

• Default logging behavior changed: osrm_start_server() now writes logs to a temporary file
  by default instead of using pipes. This prevents deadlocks in R's single-threaded environment
  while preserving logs for debugging. Use verbose = TRUE to see output in the console.