Better comment navigation

When discussions grow as trees

Comments are now trees: anyone can fork a branch and let a tangent run its course without disturbing the thread it came from.

Discussions on a paper rarely stay on one line. Someone asks a sharp question, a tangent picks up steam, and suddenly the main point is buried.

Click a comment thread on a paper and Curie lands you on the most active branch by default—wherever most new replies are still arriving. Jumping to a neighboring branch or back up to the parent takes a single click, and unread markers flag the parts of the tree you haven’t caught up on.

Fixes & minor improvements

• Inbox groups updates by paper; unread replies are marked on their file
• Comment composer shows which paper and passage you are replying to
• Edit a reply in place without reopening the composer
• Activity feed now records status changes, access changes, and who took each action
• Renamed My Library to Home and Collection to Space
• Google login now asks which account to use on every sign-in
• Fixed Reader failing to open some files uploaded from a device
• Fixed broken inbox links pointing to deleted content
• Fixed TTS failing to start on the first play after changing voice