Hardware fixes: issue version, installer Cyrillic, console TUIs (0.9.2)

- /etc/issue shows the Das OS version instead of the kernel's; the server
  installer carries it into the installed system.
- das-server-installer: setfont -C /dev/tty0 before the language menu
  (sudo runs it in its own pty, so the Cyrillic was drawn as Latin), and
  floppy drives are no longer offered as install targets.
- ncdu on the desktop image and in das-server 0.4.0.
- das-shell 0.2.0: each prompt line sets its own color; the dbanner start
  screen buttons are no longer covered by the key bar; on the Linux
  console (TERM=linux) dprompt and dbanner draw solid borders and swap
  the glyphs that no console font has (▊▎▔▁ and others) for ones it has.

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

srcpkgs/das-shell/files/python/das_shell/banner_app.py

@@ -17,7 +17,7 @@ from textual.widgets import (Button, Checkbox, Footer, Header, Input, Label, Lis
 from . import banner, widgets
 from .canvas import TOOLS, Canvas
 from .i18n import t, title
-from .tui_common import AskDialog, Swatches, run_as_root
+from .tui_common import AskDialog, Swatches, console_mode, run_as_root
 
 TOOL_NAMES = {
     "pen": ("Олівець", "Pen"), "eraser": ("Гумка", "Eraser"), "line": ("Лінія", "Line"),
@@ -657,7 +657,8 @@ class StartScreen(Screen):
     CSS = """
     #list { width: 46; border-right: solid $primary; }
     #start_preview { padding: 0 1; }
-    .buttons { height: 3; dock: bottom; }
+    #start_main { height: 1fr; }
+    .buttons { height: auto; }
     .buttons Button { margin-right: 1; }
     """
     BINDINGS = [
@@ -671,7 +672,7 @@ class StartScreen(Screen):
 
     def compose(self):
         yield Header()
-        with Horizontal():
+        with Horizontal(id="start_main"):
             yield ListView(id="list")
             yield VerticalScroll(Static(id="start_preview"))
         with Horizontal(classes="buttons"):
@@ -769,6 +770,7 @@ class BannerApp(App):
 
     def __init__(self):
         # The terminal's own 16 colors: the picture looks as it will at login
+        console_mode()
         super().__init__(ansi_color=True)
 
     def on_mount(self):