[ankit-thesys]

Stacked on #1595 (base branch abhin/dashboards-example-fixes). Two fixes to editing in examples/miscellaneous/assistant-ui-dashboards, found while testing that PR on dev.

1. An edit went to the wrong dashboard

Before: a thread has dashboard A, then B. Open A and ask "add a subtitle to this dashboard". B is edited and the panel switches to B. A dashboard opened from the Dashboards list beside a new chat could not be edited at all.

Why: /api/chat received only messages, so the model could not know which dashboard was open, and the prompt said "the dashboard" means the latest one.

Now:

• components/dashboard.tsx keeps the open panel's artifact id in a ref (openDashboardId).
• components/app.tsx sends it with each chat request through AssistantChatTransport({ body }).
• app/api/chat/route.ts validates it (art_…) and names it in the system prompt.
• lib/prompt.ts: "it", "this" or "the dashboard" means the open one when there is one, otherwise the latest.

2. Every edit reset the panel's filters and scroll position

Before: set a selector to a non-default value, scroll down, send any edit. When the edit lands the selector is back to its default and the scroll is at the top.

Why: the edit's card called setOpen({ key: toolCallId, … }), and the panel is keyed by that key, so it remounted.

Now: an edit to the dashboard already in the panel leaves the panel mounted. It follows the edit through the stream it shares with the card. All of a dashboard's cards read as open ("Close") while the panel shows it.

Verified

On the dev backend, in the browser:

Case	Result
A opened from the Dashboards list beside a new, empty chat; "change the subtitle of this dashboard"	Edit landed on A
A open; "build a separate new dashboard for zod"	A new dashboard was created
Thread has A, then zod; A reopened from its card; "add a note under the title of this dashboard"	Edit landed on A; the reply named it as the one open beside the chat
A open, selector set to "vue", panel scrolled 300 px; edit sent	New version shown, selector still "vue", scroll still 300 px, the panel's DOM node was kept, no error

tsc --noEmit is clean for the example.

Not tested

• An edit with no panel open (should fall back to the latest dashboard).
• An edit that names another dashboard while one is open.
• A create while another dashboard is open still opens the new one, as before; only an edit to the dashboard already showing skips the reopen.

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Project	Deployment	Actions	Updated
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[ankit-thesys]

Before / after recording (4 min 10 s). First half is the base branch (#1595 head f8402ebaf), second half from 1:54 is this PR. Same scripted steps in both, captioned bottom-left.

pr1599-before-after.mp4

Steps: build dashboard A (npm downloads with a Package filter), build B (zod) in the same chat, reopen A, set the filter to vue and scroll, then ask to add a note to "this dashboard", scroll again and send a second edit.

	Before	After
Edit lands on	B (zod), the latest one; panel switches to it	A, the one open
Package filter after the edit	lost	still vue
Scroll after edit 1 / edit 2	0 px / 0 px (was 220 / 260)	220 px / 260 px