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>

docs/TEST_RESULTS_0274.md

@@ -24,7 +24,8 @@ CHANGELOG 0.2.74 and the compatibility note in docs/RELEASING.md. Built on 0.2.7
 
 - Python (`.venv-portal`): 396 tests OK, including the new `tests/test_full_page_tiles.py` (sizes and footprints,
   in-order packing, free slots, validation of full and page tiles, the firmware they need, the layout sensor, the wire
-  form of built-in tiles, tile events for Claude in Home Assistant, the 48 limit).
+  form of built-in tiles, tile events for Claude in Home Assistant, the 48 limit). Correction: the committed 0.2.74
+  runs 409 tests; 396 was counted on the branch before the rebase onto the Vue editor.
 - C++ (`c++ -std=c++17 -Wall -Wextra -pedantic`): 17/17 PASS. `tests/test_runtime_model.cpp` now covers 48 tiles, a
   list sized to the layout, `screen.page_<n>` validation and page targets, and full tiles in `pack()` and `place()`
   (a page of their own, snapping to the page start, the page count).
@@ -77,7 +78,9 @@ the harness follows each board's demo layout). What the checks cover:
 Both bench boards were OTA-flashed with firmware 0.2.62 from the Mac (`esphome upload easy-<board>-device.yaml
 --device <ip>`), the Guition first, and report 0.2.62 in Home Assistant. Heap right after boot (HA sensors): Guition
 89 KB free / 60 KB minimum / 45 KB largest block (0.2.59: 76 / 57 / 33), CYD 116 KB / 107 KB / 59 KB (0.2.59: 106 /
-96 / 51).
+96 / 51). Correction: the after-boot figures are not the steady state. With 48 populated tiles the CYD has about
+97 KB free, a 49 KB largest block and a 78.6 KB minimum; a 13-tile steady state is about 98 KB free / 49 KB largest
+block, so compare against those, not against 116 / 59.
 
 - `hw_push.py <scene> [cyd]` pushes one full-page scene straight to a board's `screen_message` action and, on the
   Guition, snapshots the LVGL render through `ui_snapshot`: the big button (lit amber, in Max's dark look a brown