- Converse (useChat) lifts to the provider: survives desktop panel <-> mobile
drawer swaps, internal /campanha navigation and resize (new tab still resets).
- Chat Panel/Separator always mounted (RRP panel-count change forces a full
navigation); footprint hidden via elementRef + .b167-ai-chat-hidden
(display:none !important), avoiding RRP's imperative collapse/expand races.
- Single 'open' flag drives both surfaces (open && viewport); reconciled with
the panel at desktop settle and on user drag-collapse (gated by isUserInteraction).
- Mobile Drawer extracted to CampaignAIDrawer; FAB/setOpen unified; focus moves
into the chat on the mobile->desktop swap.
- e2e campaignAiChatResize: desktop->mobile, mobile->desktop, closed stays
closed, fresh mobile visit closed, navigation survival, new tab resets.
- Impl plan: docs/plans/migrar-chat-painel-drawer-resize-impl.md
Closes#416
0e38d19d42