dedicated GET /campaigns/:id/poll page for sharing poll links. Stable URL unaffected by tab state. Shows full scheduling widget (or “next session” banner if already confirmed). Lists other open polls the user is in at the bottom so they can navigate to vote on multiple campaigns. Share button updated to point here. Fixed after_sign_in_path_for to honour Devise stored location so shared links redirect back correctly after sign-in. PWA scope already covers / so links open in the installed PWA.
BL-041
Shipped