Batch selection via /whats-next confirmed finishing T-322 as the next
work. Refinement pass resolved the open integration questions:
workspace slot + real MultitabPane tabs (user-confirmed), file-open
routing via the openWorkspaceFile() .md-branch mirror plus a ui_command
_readers entry for D-6 CLI parity (fileGlobs confirmed dead — not
wired), and a stale SVG-lowering doc header in json_canvas.dart to fix
alongside the pane-shell work.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
jpmschweitzerandClaude Fable 5
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