Replaces the old /move (which relocated the current session file) with a
new flow that starts a fresh empty session in the target directory, leaving
the previous session resumable via /resume. With no argument, /move opens
a path autocomplete overlay (type to filter, Tab to accept, Enter to
confirm). If the target directory does not exist, a confirmation prompt
offers to create it. Empty move sessions are cleaned up on shutdown.
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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
oldschoola
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