Fix what a full test round of today's releases found: a ticking single clock, a switch that works in standby, no taps from a swipe (0.2.78)

A test and code-analysis round of 0.2.72 to 0.2.76 (suites at every tag, sanitizers, ESP32 and GitHub builds, host
harnesses on both boards, the editor in a browser, best practice checked against ESPHome, LVGL, Home Assistant and
Vue) found these, fixed here with Max's choices for the product questions:

- Firmware 0.2.65: the second hand of a single analog clock moves again; on a page that is one full on/off tile the
  waking push also switches it; on the Guition a flick is never a tap and a finger that slides off a tile doesn't tap
  it; Previous/Next react to a firm press; the same Go to page tile may sit on several pages; a layout the screen has
  no memory for is refused instead of crashing; 64-bit redraw mask for 48 tiles; Montserrat 14 no longer built.
- App: Save refuses a layout too long for one message or too big for eight pages; an offline screen keeps its
  firmware version from the device registry; HA refusals reach the editor; 128 KB requests; changelog out of the
  live stream; cached hashed assets; tini as init and a clean stop; changelog parsing without asterisks or crashes.
- Editor: clicking the open screen keeps unsaved edits, edits during a save stay unsaved, a Page row and phone
  dragging to other pages, repeated page tiles, limits from the server, HA's error messages, a type-checked build.
- tools/check.sh + GitHub Actions + a CYD flash budget; docs match 48 tiles and the new editor.

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

AGENTS.md

@@ -8,7 +8,8 @@ Every push to GitHub is a release: always also bump the add-on version in
 screen_manager/config.yaml (with a CHANGELOG line), otherwise HA won't see an update.
 Generate packages with tools/generate_packages.py; don't edit them by hand.
 A screen gets its tiles from the add-on while it runs: every card works in all
-twenty positions, and no Home Assistant entity belongs in a board profile.
+48 positions (eight pages of six, firmware 0.2.62+), and no Home Assistant entity
+belongs in a board profile.
 Preserve the data schema, protocol compatibility, unique keys, and CYD preferences.
 Test updates against existing data. Don't publish an unknown storage version without
 a migration. Production Ingress needs no long-lived token or public port.
@@ -75,8 +76,10 @@ and screens for lookups and tests. If that file is missing you are not on his ma
   filtered physical ADC values. Don't apply the affine correction twice, in both the driver and the UI.
 - The calibration wizard assumes swap_xy=false, mirror_x=true, mirror_y=false,
   and LVGL 90°. A changed orientation also requires a new projection/tests.
-- Run the Python tests, both C++ test suites, and ESPHome validation/build on code changes.
-  Firmware tests and hardware acceptance are different checks.
+- Run `tools/check.sh` on code changes (the Python tests, every C++ test, both generators, the
+  editor's tests, types and build); on a firmware change also `tools/check.sh --firmware`, which
+  compiles both boards and applies the CYD's flash budget (docs/RELEASING.md step 2). CI runs the
+  same script. Firmware tests and hardware acceptance are different checks.
 - `diagnostics/run_ui_test.py` renders without HA actions; don't touch the screen
   during that test. Use `--name` for the expected device identity.
   `diagnostics/send_layout.py` pushes a demo layout with every card type to a