Space now acts like Enter in the command line so commands advance
token-by-token (CAD convention). The whole value is handed to the submit
path, which tokenises multi-token lines, so a pasted or API-fed
`LINE 0,0 10,10` runs each space as a step separator instead of stopping
at the first token. A leading `>` switches to literal-space mode (for a
text string, a path, etc.) and is stripped on submit. All command-line
entry is shown uppercase.
Co-Authored-By: Claude Opus 4.8 <[email protected]>