v1.8.0-bcb.1

Synced with upstream through its 1.8.0 release (below) — brings in the
disk-conflict guard rework and cloud pill for shared folders, the
single-owner flashcard store fix, and every 1.7.0 co-editing fix.

Changed

• Save (ribbon button or Mod-S) once again saves only the current document, undoing 1.6.0-bcb.3.1's "save everything" change — it was more confusing than convenient once multiple panes and windows were in play. In three-pane mode, Save and Autosave also move out of the ribbon into each pane's own title chip, so each pane has its own Save/Autosave controls that unambiguously act on that pane's document, instead of a shared ribbon pair whose target depended on whichever pane was focused.

Added

• Ctrl/Cmd+K now recognizes a selected URL and fills in the "Link to" field for you. Select a pasted link (with https://, a www. prefix, or a recognized domain like .com/.org) and press Ctrl/Cmd+K — the hyperlink dialog's destination field is pre-filled instead of empty, so you don't have to retype or re-paste the same URL a second time.
• Closing a window with unsaved changes in more than one pane now shows a separate, named prompt for each document, all at once — "Chapter One.docx" and "Chapter Two.docx" each get their own dialog stacked together, instead of one generic "You have unsaved changes" dialog repeated one at a time with no way to tell which document it was actually asking about. A document whose saved file can no longer be found (moved, renamed, or deleted) gets a "Bind new filepath…" button in place of plain Save.
• The home screen can now suggest reopening a whole three-pane workspace, not just individual recent files. When a multi-pane window with 2+ saved documents open closes, CardMirror remembers that set under a "Recent Workspaces" section — click it to reopen every doc together in the same pane layout, instead of hunting down each file separately in Recent. Desktop only.

Added

• The "Autosave problem" notice now offers a "Save As…" button when the saved file has gone missing or its folder refused the write, instead of only telling you to do that yourself. In three-pane mode this works even for a background pane — clicking it brings that document into view before opening the dialog.

Changed

• Autosave is now on by default for every document, instead of off until you turned it on per file. Turn it off per file from the ribbon toggle the same way as before — that choice is still remembered across closing and reopening the file.

Fixed

• In three-pane workspace mode, a successful autosave no longer saves silently. The Save button now flashes its checkmark the same way it does for a manual save or single-doc autosave — it just never did that for autosave in three-pane mode before.
• macOS: "Open With → Always Open With CardMirror" for .docx now actually sticks. It could silently reset itself (back to Word, Pages, or whatever else claims .docx) whenever macOS rebuilt its Launch Services database — after an app update, an OS update, or on its own. CardMirror now declares its .docx support in a way macOS can bind to durably.
• Windows: a recent build had quietly gone back to installing CardMirror as the default app for .docx on every install — the exact bug an earlier fix removed, because it made Word's right-click "New > Microsoft Word Document" disappear from Explorer. Reverted; CardMirror is Open-With-only for .docx on Windows again, as intended.