batch3 T7: pane components — PaneShell, ChatPane, FileBrowserPane, PaneTab, Workspace
- PaneShell: per-pane chrome (kind label + close)
- ChatPane: extracts message+input rendering, subscribes to useSessionStream
- FileBrowserPane: tree + filter (debounced 100ms) + inline viewer via Shiki
- PaneTab: tab with kind icon + context menu (Split, Close, Close others,
Close to right, Close all) via shadcn ContextMenu
- Workspace: tab strip + pane grid (CSS grid repeat(N,1fr)), native HTML5
drag-to-reorder, "+" button (disabled at 5), subscribes to
open_file_in_browser (focus existing file-browser pane or spawn one)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
indifferentketchup
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