Show install summary when configuration is valid

Previously the Install menu preview was empty when everything was valid,
leaving the user with no "ready" signal. Now show "Ready to install"
plus a two-column summary of the current configuration.

- New _install_summary() composes an aligned key/value table with rows
  for disks+FS+LUKS, bootloader, kernel, profile, greeter, package
  count, network, locale and timezone. Column width adapts to the
  longest translated label so translations keep the alignment.
- Rows whose underlying config is not set are skipped rather than
  rendered as empty.
- base.pot / uk base.po: add new msgids for summary labels.

archinstall/lib/global_menu.py

@@ -498,6 +498,70 @@ class GlobalMenu(AbstractMenu[None]):
 
 		return None
 
+	def _install_summary(self) -> str:
+		"""
+		Render a concise two-column summary of the current install configuration.
+
+		The left column holds section labels, the right column holds values.
+		Column width adapts to the longest translated label so translations
+		do not break the alignment. Rows whose underlying config is not set
+		are skipped.
+
+		Returns an empty string if nothing meaningful to show.
+		"""
+		rows: list[tuple[str, str]] = []
+
+		disk_config: DiskLayoutConfiguration | None = self._item_group.find_by_key('disk_config').value
+		if disk_config and disk_config.device_modifications:
+			disk_parts: list[str] = []
+			for mod in disk_config.device_modifications:
+				path = str(mod.device_path)
+				root_part = mod.get_root_partition()
+				flags: list[str] = []
+				if root_part and root_part.fs_type:
+					flags.append(root_part.fs_type.value)
+				if disk_config.disk_encryption:
+					flags.append(tr('LUKS'))
+				disk_parts.append(f'{path} ({" + ".join(flags)})' if flags else path)
+			rows.append((tr('Disks'), ', '.join(disk_parts)))
+
+		bl_config: BootloaderConfiguration | None = self._item_group.find_by_key('bootloader_config').value
+		if bl_config and bl_config.bootloader != Bootloader.NO_BOOTLOADER:
+			rows.append((tr('Bootloader'), bl_config.bootloader.value))
+
+		kernels: list[str] | None = self._item_group.find_by_key('kernels').value
+		if kernels:
+			rows.append((tr('Kernel'), ', '.join(kernels)))
+
+		profile_config: ProfileConfiguration | None = self._item_group.find_by_key('profile_config').value
+		if profile_config and profile_config.profile:
+			names = profile_config.profile.current_selection_names()
+			rows.append((tr('Profile'), ', '.join(names) if names else profile_config.profile.name))
+			if profile_config.greeter:
+				rows.append((tr('Greeter'), profile_config.greeter.value))
+
+		packages: list[str] | None = self._item_group.find_by_key('packages').value
+		if packages:
+			rows.append((tr('Packages'), str(len(packages))))
+
+		net_config = self._item_group.find_by_key('network_config').value
+		if isinstance(net_config, NetworkConfiguration):
+			rows.append((tr('Network'), net_config.type.display_msg()))
+
+		locale_config: LocaleConfiguration | None = self._item_group.find_by_key('locale_config').value
+		if locale_config:
+			rows.append((tr('Locale'), locale_config.sys_lang))
+
+		tz = self._item_group.find_by_key('timezone').value
+		if tz:
+			rows.append((tr('Timezone'), tz))
+
+		if not rows:
+			return ''
+
+		label_width = max(len(label) for label, _ in rows) + 2
+		return '\n'.join(f'{label:<{label_width}}{value}' for label, value in rows)
+
 	def _prev_install_invalid_config(self, item: MenuItem) -> str | None:
 		if missing := self._missing_configs():
 			text = tr('Missing configurations:\n')
@@ -508,7 +572,10 @@ class GlobalMenu(AbstractMenu[None]):
 		if error := self._validate_bootloader():
 			return tr(f'Invalid configuration: {error}')
 
-		return None
+		summary = self._install_summary()
+		if summary:
+			return f'{tr("Ready to install")}\n\n{summary}'
+		return tr('Ready to install')
 
 	def _prev_profile(self, item: MenuItem) -> str | None:
 		profile_config: ProfileConfiguration | None = item.value

archinstall/locales/base.pot

@@ -1245,6 +1245,21 @@ msgstr ""
 msgid "Invalid configuration: {error}"
 msgstr ""
 
+msgid "Ready to install"
+msgstr ""
+
+msgid "Disks"
+msgstr ""
+
+msgid "Packages"
+msgstr ""
+
+msgid "Network"
+msgstr ""
+
+msgid "Locale"
+msgstr ""
+
 msgid "Type"
 msgstr ""
 

archinstall/locales/uk/LC_MESSAGES/base.po

@@ -1219,6 +1219,21 @@ msgstr "Модель"
 msgid "Invalid configuration: {error}"
 msgstr "Неправильна конфігурація: {error}"
 
+msgid "Ready to install"
+msgstr "Готово до встановлення"
+
+msgid "Disks"
+msgstr "Диски"
+
+msgid "Packages"
+msgstr "Пакети"
+
+msgid "Network"
+msgstr "Мережа"
+
+msgid "Locale"
+msgstr "Локаль"
+
 msgid "Type"
 msgstr "Тип"