Set real values for genericized git-config/encryption/send-alert/printing

Mirrors the azos-core change: drops the now-fully-migrated
features/{git-config,encryption,printing}, rewrites features/homey-alert
down to just the azos-homey-ntfy-alert overlay package (the ntfy-specific
remote-notification command plugged into azos.send-alert.remoteCommand),
and sets every real personal value (name/email/signing key, GPG key id,
YubiKey/browserpass/gpg-ssh toggles and keygrip/pubkey, printing username)
directly in home-manager/home.nix and nixos/configuration.nix, same place
the other personal values (azos.name, azos.headphones.devices) already
live.

features/nextcloud/default.nix

@@ -23,12 +23,12 @@
     nextcloudMountSafe = pkgs.writeShellScript "nextcloud-mount-safe" ''
       set -eu
       mountpoint="$HOME/${mountDir}"
-      mkdir -p "$mountpoint"
+      ${pkgs.coreutils}/bin/mkdir -p "$mountpoint"
       while ! ${pkgs.azos-card-present}/bin/azos-card-present; do
         ${pkgs.coreutils}/bin/sleep 10
       done
-      password=$(${pkgs.pass}/bin/pass zakobar.com | head -1)
-      uid=$(${pkgs.pass}/bin/pass nextcloud-username/aner | head -1)
+      password=$(${pkgs.pass}/bin/pass zakobar.com | ${pkgs.coreutils}/bin/head -1)
+      uid=$(${pkgs.pass}/bin/pass nextcloud-username/aner | ${pkgs.coreutils}/bin/head -1)
       export RCLONE_CONFIG_${remoteNameEnv}_TYPE=webdav
       export RCLONE_CONFIG_${remoteNameEnv}_URL="https://nextcloud.zakobar.com/remote.php/dav/files/$uid/"
       export RCLONE_CONFIG_${remoteNameEnv}_VENDOR=nextcloud
@@ -63,9 +63,9 @@
           Unit.Description = "Mount Nextcloud ${remoteSubfolder} via rclone (waits silently for YubiKey)";
           Service = {
             Type = "simple";
-            Environment = "PATH=${pkgs.fuse3}/bin:${pkgs.fuse}/bin";
+            Environment = "PATH=/run/wrappers/bin:${pkgs.fuse3}/bin:${pkgs.fuse}/bin";
             ExecStart = "${nextcloudMountSafe}";
-            ExecStop = "${pkgs.fuse3}/bin/fusermount3 -u %h/${mountDir}";
+            ExecStop = "/run/wrappers/bin/fusermount3 -u %h/${mountDir}";
             Restart = "always";
             RestartSec = "10s";
           };