Change a screen's settings on the screen itself (0.2.52)

Holding the top bar for about a second and a half opens a settings page on the
screen, with a blue line filling along the top edge while you hold. A built-in
screen.settings tile and the esphome.<screen>_open_settings action open it too.

The page is one constexpr table of rows in settings_screen.h: Brightness,
Night, Screen (clock, back to page 1, swiping, rotation) and This screen (name,
address, firmware, Home Assistant, Restart). Toggles flip on a tap, numbers and
times step with -/+ (a held time walks whole hours), a choice cycles in a chip,
and a row that depends on a switch above it is greyed out. The LVGL objects exist
only while the page is open: +608 bytes of RAM and +10.7 KB of flash on the CYD.
A change is saved, applied and reported through the existing screen_setting
event, so ESP Screens shows the same value within a second.

New setting auto_home (default on, 2 minutes): an open card, the settings page
or a later page goes back to page 1 after that long without a touch, not only on
standby. It travels beside the frozen eleven-key settings block with its own
preference, so older firmware and older apps keep working.

docs/SETTINGS.md is the recipe for adding a setting; the Claude skill explains
the page. Firmware 0.2.44.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

tests/test_portal.py

@@ -8,7 +8,7 @@ import tempfile
 import unittest
 
 sys.path.insert(0, str(Path(__file__).resolve().parents[1] / 'screen_manager/app'))
-from core import discover, installation_yaml, packets, state_message, validate_layout, validate_settings
+from core import SETTINGS_BESIDE_BLOCK, discover, installation_yaml, packets, state_message, validate_layout, validate_settings
 
 class ProtocolTests(unittest.TestCase):
     def test_unicode_chunks_and_limits(self):
@@ -125,11 +125,11 @@ class ManagerTests(unittest.IsolatedAsyncioTestCase):
             with self.assertRaises(ValueError): fresh.save('text.screen',{**saved,'settings':{'brightness':0}})
             self.assertEqual(path.read_bytes(),before)
             await fresh.sync_one('text.screen',saved)
-            self.assertEqual(fresh.ha.messages[0][1]['settings'],{k:v for k,v in settings.items() if k not in ('swipe_pages','rotation')})
+            self.assertEqual(fresh.ha.messages[0][1]['settings'],{k:v for k,v in settings.items() if k not in SETTINGS_BESIDE_BLOCK})
             await fresh.sync_one('text.screen',saved)
             self.assertEqual(len(fresh.ha.messages),2)
             await fresh.sync_one('text.screen',saved,True)
-            self.assertEqual(fresh.ha.messages[2][1]['settings'],{k:v for k,v in settings.items() if k not in ('swipe_pages','rotation')})
+            self.assertEqual(fresh.ha.messages[2][1]['settings'],{k:v for k,v in settings.items() if k not in SETTINGS_BESIDE_BLOCK})
 
     async def test_reorder_aborts_old_batch(self):
         with tempfile.TemporaryDirectory() as temp: