TabAlts gains client-side match filters (Email / Client ID / IP toggles plus a hide-IPs-shared-by-more-than-N-users threshold for VPN noise) with a shown/hidden status count, and a Selected user panel that loads the row account's counts, admin notes, warning history, and ban history in one place. Detail requests are guarded against stale selections.
TabModeration gains an Open alt graph button plus alts-table double-click, both routing to the User Alts tab. UserContextMenu gains an Investigate alts action. TabAlts gains row double-click navigation with a Back history stack so moderators can walk the alt graph without retyping names.
- Switch to the User Alts tab when it is created, so the first investigate
click does not open it in the background.
- Treat an empty RespOk as "user not found" and use a generic message for
error codes, matching what the server actually returns.
- Exclude the depth-0 seed row from the related-account count.
- Guard the reply with the requested user name so a stale response cannot
overwrite a newer one.
- Move the duplicated formatEpoch body into widgets/utility/epoch_format.h.
New TabAlts tab with user search, depth selector (1-3), and an alt table showing per-row match evidence (Via, Depth, Shared fan-out) alongside the account data. Sends Command_GetUserAlts with the requested depth and degrades gracefully against old servers (missing evidence fields render as dashes). Wired as a transient single-reuse tab via TabSupervisor::openTabAlts with no menu action or persisted setting; closed on disconnect like the other staff tabs.
