Fixes HWLAB #759 round-3 v0.2 WebUI issues introduced by the React migration:
1. device-pod right sidebar could not be re-expanded because the toggle button
was nested inside the right sidebar which is fully hidden when collapsed.
Move the toggle button to be a direct child of the right sidebar via a
new anchor button + content wrapper. Add --right-collapsed-width and a
vertical-rl text rotation so the toggle stays visible and accessible
when the right sidebar is collapsed.
2. The Session sidebar and right sidebar resize handles had no event
handlers after the React migration; dragging did nothing. Add a new
useSidebarResize hook with pointer/keyboard handlers, dynamic bounds
based on viewport and opposite sidebar width, localStorage
persistence, and CSS variable injection on the workbench shell.
3. document.querySelector("#command-form > div") (the input shell) was on
the same row as the timeout selects. Restore the original layout by
switching the command-bar to grid-template-areas with the input shell
on its own row and the three selects on a second row.
4. Code Agent was unusable from the React UI because the 202 response has
status=running and no reply text; the React UI marked the message as
completed with the fallback empty body. Add a polling loop in the
workbench store that follows resultUrl until status reaches a terminal
value, and surface assistantText / reply.content from the polled
AgentChatResultResponse. Add AgentChatResultResponse, AgentChatReply
and AgentRunProvenance types plus a getAgentChatResult API method.
Verified locally on G14:web/hwlab-cloud-web: bun run check (12 fresh
dist files), bun run scripts/tsc-check.ts (strict React TSX, 0 explicit
any), bun test (2 pass / 0 fail).
Co-authored-by: HWLAB <ci@hwlab.local>
Lyon
3729372e14