Task renumbering, expanded CoAudit review controls, and new keyboard shortcuts

Engagement Board

Inline task numbering (list view, auditors only): hover over a task or request's index number to reveal an edit icon. Type a new number and a preview shows exactly which tasks will shift before you confirm; press Escape to cancel without saving.
Renumber all (list view, auditors only): a new "Renumber" option in the Display menu reassigns sequential numbers to every task and request in the order they currently appear on screen. A preview dialog shows every change before anything is written.

Review any cell, cited or not: Validate and Flag now work on any cell — including cells with no attached evidence — from the ribbon buttons, keyboard shortcuts, or the in-pane verdict controls. Useful for values you've checked by eye and want to sign off on. Clearing a verdict-only cell removes the record entirely with no leftover trace.
Clear keyboard shortcut: Alt+Shift+C (Windows) / Option+C (Mac) now clears a review verdict from the selected cell or range, completing the Validate/Flag/Clear keyboard shortcut set. Works whether the spreadsheet grid or the task pane has focus.
Simpler engagement-switch confirmation: re-linking a workbook that has existing citations to a different engagement now shows a single, clearly-labeled button instead of two overlapping options — making the consequences easier to understand before confirming.

External ID: auditors can now set or clear an External ID on any engagement — a unique identifier used to connect the engagement to an external integration. The field saves automatically when you move away; a conflict with an existing ID in your firm shows an inline error.

The Skills introduction callout can now always be closed: the close button, pressing Escape, and clicking outside the panel all dismiss it immediately, even if the network is slow.

Notification emails are delivered more consistently. A recurring issue that occasionally caused digest emails to be delayed has been resolved.