Show confirmed create/join guidance until local Continue without polling or ordinary game actions clearing unread text. Default shared toasts to no timeout with visible Dismiss controls.
Validation: 23 focused entry/action/seat tests, types/lint/build, and original local room creation with 43-second retention through polls and a circle change, explicit dismissal and no replay. No console errors. QA room preserved. Deployed acceptance remains open. Runtime fingerprint d57fa6a34bb1738017c2690ca5ad9f04b0b99458078a60c7ddd51e2c29483301; documentation overlay a8baa23802ac1c79321d67913c27512a199699839c1932947dfa3af95434cc37.