[ernis2077]

What

Studio embedded in promptwise's Timeline tab now looks and behaves like part of promptwise:

• No second header. Embedded, Studio draws no header (logo, the folder's UUID, Capture, Inspector, Window, Export). The tab's own toolbar carries Inspector and Export: it sends their presses as promptwise:command messages (accepted only from the parent page, only those two), and Studio reports their state back as promptwise:state.
• A compact dock. Below a 1000px dock (the tab beside the chat is about 620px on a 1440px screen) the default layout is the preview over a 260px timeline, with one side group (Design, Layers, Renders, Compositions, Assets) beside the preview, hidden until Inspector or a selection asks for it.
• BoardUI's gray pill tabs inside each panel's card, as in promptwise's own panels, instead of folder tabs on the shell.
• An opening frame. A film opens a second in (halfway for one under two seconds), where its first shot has arrived, instead of on its empty first frame; a time in the link still wins.
• A lighter stage. The preview's overlay buttons wear BoardUI's light surface with a hairline instead of black glass, and the stage a hairline and medium shadow instead of a heavy black one.
• Quieter timeline. The Shift+drag hint shows only while the pointer is over the timeline.
• The agent first. The empty Design panel leads with "Ask the agent", its one primary button, above "Record a gesture".

Why

In the tab, Studio sat under promptwise's toolbar with a header of its own, three columns that didn't fit (the Design panel wrapped one word a line and its tab read "esign"), and opened on a blank first frame.

Related work

Refs the promptwise change that adds Inspector and Export to the Timeline tab's toolbar (BebraAI/bebraai, branch claude/friendly-curie-p7d5j5). That side shows the two buttons only once Studio has reported its state, so it works with either release.

How

• promptwise/usePromptwiseToolbar.ts is the message bridge; StudioHeader keeps the Inspector and Export logic in named functions shared by its buttons and the bridge, and renders nothing when embedded.
• buildEditLayout builds the compact layout under 1000px (happy-dom's 1024px default keeps the existing dock tests on the three columns).
• Pills, the strip inside the card and the hint are in promptwise/theme.css; toolbar toggles keep the accent tint, which BoardUI assigns to selection states.
• useStudioUrlState seeks to openingTime when embedded and the link has no time. Its cognitive complexity (17) is inherited and unchanged, so it carries a fallow suppression with that reason.

Test plan

• Unit tests added/updated: the embedded header (no markup, commands, state, foreign messages ignored), the compact layout, the opening frame, the empty state's order and its ask-agent message, the stage's ring.
• Manual testing performed: Studio's dev server in an iframe at 640×820 and 900×860, light and dark, and in promptwise's web app with its Timeline tab (Inspector pressed from promptwise's toolbar).
• All Studio tests pass (720 files), typecheck, oxlint, oxfmt and the fallow audit.

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Generated by Claude Code