RoomCard displays a single stored room as an interactive card with actions.
Remarks
The card shows the room alias (or room name), feature badges (static/link,
password, waiting room, offline), creation date, and provides actions
for starting, configuring, copying the link, and deleting the room.
Layout:
Title row with alias and overflow menu
Room name subtitle (when alias differs)
Feature badges as chips
Creation date
Start button in card actions
Overflow menu with Settings, Copy Link, and Delete
RoomCard displays a single stored room as an interactive card with actions.