Stage 6: server image with a console installer (0.4.0)

- server/ profile and build-iso.sh [desktop|server]; make iso-server,
  make qemu-server, run-qemu.sh --serial; login on tty and ttyS0
- das-server: SSH, chrony, NetworkManager/dhcpcd, Docker with Compose,
  nftables (closed except SSH, own table), fail2ban reading socklog,
  sshd without root passwords, Docker log rotation, tools
- das-server-install: dialog installer in Ukrainian and English, or
  unattended with --config; GPT + Btrfs subvolumes, GRUB for UEFI and BIOS,
  serial console, SSH key with optional keys-only logins
- das-install-common: mount-source and postinstall shared with Calamares
- dsv: runit service manager (list, enable, disable, start, stop,
  restart, status, logs) with bash completion, also on the desktop
- das-update split into a subpackage without GTK; the window and tray
  icon move to /usr/libexec/das/das-update-gui
- das-snapper-setup enables dbus, which snapper needs
- TODO: ISO size review with measured numbers and options

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

srcpkgs/das-installer/template

@@ -1,8 +1,8 @@
 # Template file for 'das-installer'
 pkgname=das-installer
-version=0.2.0
+version=0.3.0
 revision=1
-depends="calamares das-snapshots das-theme sudo"
+depends="calamares das-install-common das-theme sudo"
 short_desc="Das OS installer: Calamares configuration and branding for the live ISO"
 maintainer="Das <anry.das@gmail.com>"
 license="MIT"
@@ -13,8 +13,6 @@ do_install() {
 	vmkdir usr/share/calamares
 	vcopy "${FILESDIR}/calamares/*" usr/share/calamares
 	vbin ${FILESDIR}/das-install
-	vinstall ${FILESDIR}/postinstall 755 usr/libexec/das/installer
-	vinstall ${FILESDIR}/mount-source 755 usr/libexec/das/installer
 	vinstall ${FILESDIR}/installer-icon 755 usr/libexec/das/installer
 	vinstall ${FILESDIR}/das-installer.desktop 644 usr/share/applications
 	vinstall ${FILESDIR}/das-installer-icon.desktop 644 etc/xdg/autostart