- Now tracing is not a build-time config but a runtime option (`-trace`)
- One command per line, so that traces are not mixed with other outputs
- Send traces to DAP client
- Fix garbled characters in non-SJIS environments
`-texthook print` prints text to console, and `-texthook copy`
automatically copies text to clipboard (for use with text hooker tools).
On Windows, copy mode can be toggled from the menu bar.