refactor(sydnix-cli): rewrite sydnix-cli

holy shit. why. why did i write the first version LOL. so fucking ocmplicated. and half broken.

hosts/sydpc/configuration.nix

@@ -1,4 +1,4 @@
-{ config, pkgs, lib, disko, sydnix-cli, ... }:
+{ config, pkgs, lib, disko, ... }:
 
 {
   imports = [
@@ -112,8 +112,8 @@
   environment.systemPackages = [
     pkgs.neovim
     pkgs.git
-    sydnix-cli.packages.x86_64-linux.default
     (import ../../scripts/port-tools { inherit pkgs; })
+    (import ../../scripts/sydnix-cli { inherit pkgs; })
 
     # Waypipe provides the equivalent of X11 forwarding for Wayland.  When
     # connecting to a remote, it is required that `waypipe` is on the remote's