CoAudit-first add-in layout with file sorting and grouping

Features

Redesigned Excel and Word add-in layout. CoAudit chat is now the default view when you open the task pane — no extra click required. The document viewer and file manager live in a collapsible right sidebar. On wider panes, both panels appear side by side with a draggable divider; on narrower panes, dedicated controls let you switch between them. The sidebar's width is remembered across sessions.
File sorting and grouping in the Document Manager. A new display-settings control (gear icon) in the file toolbar lets you sort files by date added (newest first, the default) or by name, and — when inside a document group — group files by citation status or text-recognition status so you can focus on what still needs work. If any files have failed text recognition, the gear shows a red badge and the first menu item takes you straight to those files.
Clear guidance for unprovisioned accounts. If you sign in with an account that isn't yet connected to an audit firm, the add-in now shows a plain "Welcome to Punchcard" screen explaining what to do, with a Check again button (provisioning can complete while the pane is open) and a sign-out option — instead of a working-looking interface where every action silently failed.

Non-admin workbook attachment now works. Non-admin users can now attach a workbook or document to an engagement from the add-in — the form was previously locked and gave no indication why.
CoAudit "Conversation too long" shows immediately. When a chat grows too large to continue, the error appears right away instead of after several invisible failed attempts. The message and guidance remain the same.
Scrolling in Excel no longer jumps. With the add-in open, scrolling the spreadsheet no longer snapped back to the selected cell.
Word add-in notifies you when a restart is needed. If a ribbon action stops responding because Word needs to be restarted, the add-in now shows a clear notification — instead of silently freezing all ribbon controls.
Cite, Lasso, and Sum now open the document viewer. Activating a drawing tool from the ribbon now reliably brings the document into view, rather than landing on the file list and cancelling the draw.
Document Manager no longer shows a previous user's files. After signing out of the Word add-in, the file tree is cleared — a subsequent user no longer sees the prior account's document groups and file names before their own files load.
Engagement category colors are more readable. Dot colors in the engagement breadcrumb menu now use the same calibrated palette as the rest of the product — several shades that were previously too light to read against their backgrounds have been corrected.