8eb961b682
Several fire-and-forget promises failed silently: - RoomInput slash-command exe() rejections reset the editor as if they succeeded; now caught and shown via an error toast. - Favourite / low-priority room-tag toggles (setRoomTag/deleteRoomTag) swallowed rejections; now surfaced via the same error toast. - Call-decline sendEvent(RTCDecline) was uncaught; now logged best-effort while the local UI still dismisses. Adds a shared createErrorToast builder mirroring createDownloadToast. /kick and /ban route through rateLimitedActions, whose to() helper swallows non-429 errors, so those two can still resolve on failure — noted in code; the top-level exe() catch covers everything that does reject. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>