fix: which-pack names the first screen in brief

The sentence fits the page's 400-word ceiling and its 20-word sentences.
A test reading the site generator skips under Python 3.8, as the others
do, and the core plan test names the cores --core gave.

scripts/generate_site.py

@@ -3941,12 +3941,10 @@ def first_screen_words() -> list[str]:
     since."""
     installer = _installer()
     # The screen it opens first: the setup found, or the list when none
-    # is. Install and Choose systems come on the next one (tui_audit_16
-    # P3-10).
-    return [f"The command asks **{installer.TUI_FOUND_TITLE}** with the setup it found, "
-            f"or **{installer.TUI_CHOOSE_TITLE}** with a list when it finds none. Then "
-            f"**{installer.TUI_INSTALL_ROW}** gets every file, "
-            f"**{installer.TUI_SYSTEMS_ROW}** only the consoles you pick."]
+    # is. Install comes on the next one, Choose systems beside it and named
+    # above on the page (tui_audit_16 P3-10).
+    return [f"It asks **{installer.TUI_FOUND_TITLE}** (or **{installer.TUI_CHOOSE_TITLE}**), "
+            f"then offers **{installer.TUI_INSTALL_ROW}**."]
 
 
 def check_pass_line() -> str:

tests/test_install_tui.py

@@ -9880,6 +9880,7 @@ class AuditEighteenAndEleven(_CardFixtures, unittest.TestCase):
         """P3-11."""
         state = checked_state()
         state.cli_systems, state.cores, state.regions = ["sony-playstation"], ["x"], ["us"]
+        state.cli_cores = ["x"]
         text = " ".join(" ".join(install.tui_view(state, 120, 40)).split())
         self.assertIn("(--system), --core, --region.", text)
 
@@ -13934,6 +13935,8 @@ class AuditTwentyThreeAndSixteen(unittest.TestCase):
 
     # Root cause 6: the pages say what the installer shows.
 
+    @unittest.skipIf(sys.version_info < (3, 9),
+                     "the site generator needs Python 3.9")
     def test_which_pack_names_the_first_screen(self):
         """tui_audit_16 P3-10: which-pack said the command opens a screen
         where Install and Choose systems are, the second screen."""

tests/test_site_r2_entry.py

@@ -167,7 +167,7 @@ class GetYourFilesOrder(unittest.TestCase):
         text = _page("which-pack.md")
         order = [text.index(mark) for mark in (
             "## Pick your setup", "| Setup | Runs on | BIOS folder | ZIP |", "<FilePicker",
-            "## Not in the list? One command finds it", "The command asks **",
+            "## Not in the list? One command finds it", "It asks **",
             "<summary>Is it safe?</summary>",
         )]
         self.assertEqual(order, sorted(order))