The console and errors commands parsed --clear from CLI args but the
action handlers silently ignored the flag. The handlers did not accept
the cmd parameter so they had no way to read the clear field.
Changes:
- Add clear_console() method to EventTracker in network.rs
- Update handle_console to accept cmd, read the clear field, and clear
the buffer when --clear is passed (returns {cleared: true})
- Update call site in execute_command to pass cmd
Co-authored-by: xuyongliang <yongliang.xyl@alibaba-inc.com>
