v3.23.3 review: pin the notice box targeting with a DOM test

The review of 1786300 found the box targeting pinned only by source-pattern
assertions.  The new test drives ramShowCntrLow through the fake document
and asserts the notice lands in the originating view's box (and hides the
other one), so a regression to the static '#ram-cntr-low' lookup fails
behaviourally, not just textually.

847 frontend + 830 Python.

frontend/tests/ram.test.js

@@ -928,6 +928,26 @@ test('ramCntrLowHtml states the facts without a fabricated counter', () => {
 	assert.match(html, /id="sp-cntr-low"/);
 });
 
+test('ramShowCntrLow targets the originating view box', () => {
+	// the notice must land in the pill the failed operation ran in: the
+	// Secured packet notice used to be written into the hidden RAM container,
+	// so the buttons were unreachable from the plain send (v3.23.3)
+	globalThis.t = s => s;
+	const els = fakeRamDocument(['ram-cntr-low', 'sp-cntr-low']);
+	ramShowCntrLow(2, 'sp');
+	assert.ok(els['sp-cntr-low'].innerHTML.includes("ramSyncCounter(2, 'sp')"),
+		els['sp-cntr-low'].innerHTML);
+	assert.ok(!els['sp-cntr-low'].classList.contains('hidden'));
+	assert.strictEqual(els['ram-cntr-low'].innerHTML, '');
+	assert.ok(els['ram-cntr-low'].classList.contains('hidden'));
+	ramShowCntrLow(1, 'ram');
+	assert.ok(els['ram-cntr-low'].innerHTML.includes("ramSyncCounter(1, 'ram')"),
+		els['ram-cntr-low'].innerHTML);
+	assert.ok(!els['ram-cntr-low'].classList.contains('hidden'));
+	assert.ok(els['sp-cntr-low'].classList.contains('hidden'));
+	delete globalThis.t;
+});
+
 test('the explorer shows versions on app and ISD rows too', () => {
 	globalThis.t = s => s;
 	const out = ramRenderExploreHtml(null,