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>

web/tests/drag.spec.ts

@@ -0,0 +1,53 @@
+// What a drag near an edge scrolls (app 0.2.78): on a phone the row of pages sideways and the page itself up and
+// down, on a wide window the canvas both ways.
+import { beforeEach, describe, expect, it } from "vitest";
+import { dragScrollers, edgeStep, scrollsAlong } from "../src/drag";
+
+// jsdom has no layout: give an element the sizes a browser would measure, and the overflow longhands it computes.
+function sized(element: HTMLElement, size: { scrollWidth?: number; clientWidth?: number; scrollHeight?: number; clientHeight?: number }) {
+  for (const [key, value] of Object.entries(size)) Object.defineProperty(element, key, { configurable: true, value });
+  return element;
+}
+let canvas: HTMLElement, pages: HTMLElement;
+beforeEach(() => {
+  document.body.innerHTML = '<div class="canvas"><div class="pages"></div></div>';
+  canvas = document.querySelector<HTMLElement>(".canvas")!;
+  pages = document.querySelector<HTMLElement>(".pages")!;
+});
+
+describe("the scroller of a drag", () => {
+  it("scrolls the canvas both ways on a wide window", () => {
+    // The canvas scrolls (overflow: auto); the row of pages is wider than it but doesn't scroll itself.
+    Object.assign(canvas.style, { overflowX: "auto", overflowY: "auto" });
+    sized(canvas, { scrollWidth: 1800, clientWidth: 900, scrollHeight: 1200, clientHeight: 700 });
+    sized(pages, { scrollWidth: 1800, clientWidth: 900 });
+    const { x, y } = dragScrollers(document);
+    expect(x).toBe(canvas);
+    expect(y).toBe(canvas);
+  });
+  it("scrolls the row of pages sideways and the page up and down on a phone", () => {
+    // At 960 px and narrower: the canvas is overflow: visible and the row of pages overflow-x: auto.
+    Object.assign(canvas.style, { overflowX: "visible", overflowY: "visible" });
+    pages.style.overflowX = "auto";
+    sized(canvas, { scrollWidth: 390, clientWidth: 390, scrollHeight: 900, clientHeight: 900 });
+    sized(pages, { scrollWidth: 1400, clientWidth: 358 });
+    const { x, y } = dragScrollers(document);
+    expect(x).toBe(pages);
+    expect(y).toBe(document.scrollingElement);
+  });
+  it("falls back to the canvas when the row of pages fits", () => {
+    pages.style.overflowX = "auto";
+    sized(pages, { scrollWidth: 358, clientWidth: 358 });
+    expect(dragScrollers(document).x).toBe(canvas);
+    expect(scrollsAlong(null, "x")).toBe(false);
+  });
+});
+
+describe("the step near an edge", () => {
+  it("moves 12 px towards an edge within 60 px of it, and not in between", () => {
+    expect(edgeStep(10, [0, 400])).toBe(-12);
+    expect(edgeStep(200, [0, 400])).toBe(0);
+    expect(edgeStep(390, [0, 400])).toBe(12);
+    expect(edgeStep(120, [100, 900])).toBe(-12);
+  });
+});