feat(fish): add remote deploy helper

AGENTS.md

@@ -101,3 +101,5 @@ The domain model (Host, Module, Skeleton, Auto-loader, Enable convention, overla
   Keep fractional scaling sharp with Hyprland's `xwayland.force_zero_scaling` and Steam's own `STEAM_FORCE_DESKTOPUI_SCALING` instead.
 - AdGuard's LAN wildcard rewrite for `*.alexion.dev` points names at the reverse-proxy guest, including non-HTTP ports.
   Keep `git.alexion.dev:2022` working by proxying that TCP stream through the reverse-proxy guest to Gitea.
+- Remote deploy helpers that run target-side `sudo` over SSH need a TTY.
+  Use `ssh -t` unless the target command is guaranteed not to prompt for sudo credentials.

modules/fish/functions/deploy-to.fish

@@ -50,4 +50,4 @@ set escaped_branch (string escape -- $branch)
 set escaped_host (string escape -- $host)
 set remote_command "cd ~/wrk/dotfiles && git fetch origin && git switch -- $escaped_branch && git reset --hard origin/$escaped_branch && sudo nixos-rebuild switch --flake .#$escaped_host --print-build-logs"
 
-ssh $host $remote_command
+ssh -t $host $remote_command