rootshell: Local Terminal, SSH

Appearance - Twenty new app icon variants in Settings -> Appearance -> App Icon: an original set of eight, plus a "Radical of the Unknown" collection of twelve themed after popular terminal color schemes (Solarized, Dracula, Nord, Gruvbox, Tokyo Night, Catppuccin, Bases, Mono, Monokai, Rose Pine). Picking a variant updates the home-screen icon, the animated About icon, and the Live Activity widget at the same time. - A new "Change App Icon" Shortcuts action switches the icon from a shortcut, automation, or Focus mode trigger. - The Classic app icon has been re-mastered. Connections - SSH, mosh, and tssh sessions now implement OpenSSH's "~" escape sequences. At the start of a line: ~. disconnect, ~? help, ~# list active forwards, ~I connection info, ~~ send a literal tilde. Suppressed inside bracketed paste. - A yellow OpenSSH 9.9-style banner now warns when an SSH session negotiates a non-post-quantum key exchange. The Connection Info "Post-Quantum Secure" badge was split into separate key-exchange and host-key signals. - A new SSH Transport settings subpage collects health monitoring, probe interval, and post-quantum warning. - A new SSH Server Compatibility toggle switches public-key auth to a probe-first flow, for routers and embedded servers that reject pre-signed offers. - The local-shell ssh command accepts -AA as a shortcut for agent forwarding with auto-approval, and a new --path flag opts into a Homebrew/Linuxbrew/Go-friendly PATH prepend (otherwise your remote command goes over the wire verbatim). - Tailscale resource lists and Quick Connect suggestions hide devices offline for more than 30 minutes. - tssh resume retries with exponential backoff for up to 24 hours, instead of giving up after a single 30-second attempt. AI Agent - New AWS Bedrock provider routes Claude requests through Amazon Bedrock in your own AWS account, reusing the existing Cloud account flow (Access Keys or SSO/STS). Local Shell - Command substitution and arithmetic expansion: $(...), $((...)), and backticks now expand at the prompt instead of being passed through literally. - Plain parameter expansion ($VAR, ${VAR}, $0-$9, $@ $* $# $? $$ $! $-) now expands at the prompt. Terminal - Per-font cell-width and cell-height sliders (±25%) in Font settings, scoped per font family. Live Activity - A new "Info Only" filter keeps the activity alive on WiFi or Network info alone, without requiring an open terminal or active VPN. BUG FIXES - Fixed a long-standing bracketed-paste hang where a large paste could leave the terminal silently buffering until the next tab focus change. - Fixed an iPhone wedge after returning from background where the UI advanced one frame per touch. - Fixed a terminal size desync after returning from background. - Fixed Backspace in the bundled iOS Vim's INSERT mode. - The watchOS Smart Stack mirror of the Live Activity widget no longer shows a placeholder where the app icon should be. - The AI Agent now re-anchors when the underlying shell context changes; opening it on a tab where you'd SSHed and exited used to keep targeting the previous context. - The AI Agent toolbar menu no longer pulses during streaming. - SSH sessions opened from the local shell now wire up to the agent-approval prompt, so a forwarded-agent identity request no longer silently stalls. - Profile editor validation messages render inline under the offending field. - The reconnect roam banner no longer flickers through several "last seen" timestamps before settling. - Opening Connection Info on iPhone with the keyboard up no longer leaves the keyboard covering the sheet. - Lock-screen Live Activity session totals now aggregate across multiple windows. - Live Activities orphaned by force-quit, OS kill, or crash are adopted in place at launch. - Touch selection handles reappear after backgrounding or dismissing a sheet over a live selection. - Tightened gesture recognizers around vertical scroll vs. the horizontal split-switch swipe.