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>

README.md

@@ -94,6 +94,11 @@ The firmware and built-in CLI are tested with **ESPHome 2026.6.2**.
   night hours, 24- or 12-hour clock, return to the home page, and optional swiping
   between pages. Home Assistant automations can turn **Auto standby** off and on per
   screen (firmware 0.2.41+), for example to keep a screen on while someone is home.
+- **Settings on the screen itself** (firmware 0.2.44+): hold the top bar for about a
+  second and a half and the screen opens its own settings page — brightness, night,
+  the clock, swiping, rotation, and what this screen is (name, IP address, firmware,
+  whether Home Assistant is connected, and Restart). Changes show up in ESP Screens
+  within a second. See [Settings on the screen](#settings-on-the-screen).
 - **Guition rotation:** 0°, 90°, 180°, or 270°, directly from the management page.
   Native LVGL rotation turns the display and touch together. The CYD keeps its fixed
   orientation and its own calibration.
@@ -313,6 +318,30 @@ If not everything fits next to the name, the name gets an ellipsis and the scree
 leading items; the editor marks those with dashes. Until updated, older firmware shows
 only the name and the time (if that's in the bar).
 
+## Settings on the screen
+
+Everything you would want to change while standing in front of the panel is on the screen
+itself (firmware 0.2.44+). Tiles, the top bar and the pages stay in ESP Screens, where you
+have a mouse.
+
+**Opening it:** hold the top bar — the strip with the screen's name and the clock — until the
+blue line along the top edge is full, about a second and a half. Letting go early cancels.
+Rather have a button? Put the built-in **Settings** card on a page like any other tile. From
+Home Assistant, `esphome.<screen>_open_settings` opens it too (`page` 0 menu, 1 Brightness,
+2 Night, 3 Screen, 4 This screen, -1 closes it).
+
+| Group | What is on it |
+|---|---|
+| Brightness | Brightness, Auto standby, Standby after, Standby brightness |
+| Night | Night mode, Starts, Ends, Night brightness |
+| Screen | 12/24-hour clock, back to page 1 by itself and after how long, also on standby, swiping between pages, rotation (boards that turn) |
+| This screen | Name, IP address, firmware version, Home Assistant connected, Restart |
+
+Tap a toggle to flip it, `-` and `+` to change a number or a time — hold them and a time walks
+whole hours — and tap a chip like the clock to cycle it. Every change is saved on the screen,
+takes effect at once, and appears in ESP Screens within a second, so both sides always show
+the same value.
+
 ## Updates and keeping your settings
 
 | Change | Action |