CardKeep: Events & RSVP

New: Address a family collectively with a new Contact Name field (e.g. "The Davies Family") — used automatically in texts and on the RSVP page when there's no individual name on file. Archive lists you're done with instead of deleting them, with filters for active / archived / all. New "Photo Hero" invitation style — your photo, full width, no overlay. Collaborators with edit access can now send and reply to text messages, with quick-insert buttons for first name, event details, and RSVP links, and messages are labeled with who sent them. Improved: More reliable sync, with faster recovery from slow or dropped connections. A contact's message history now shows the right conversation when they're on more than one list. Fixed: Choose from Library" now works when scanning an address list or name/phone list — it previously did nothing when tapped. A handful of smaller bugs around list archiving, RSVP status display, and message read counts.