cards: From card button + normalized duplicate ICCID refusal (v2.2.18)

- The card create/edit form gets a From card button next to the ICCID
  field: it fills the field with the equipped card's EF.ICCID. It uses the
  availability model through a new 'card-iccid' requirement - enabled only
  while /api/status reports a connected card with a readable iccid; with a
  card but no readable ICCID the tooltip says so, otherwise the usual
  'insert and equip' hint applies. The last status ICCID is kept in
  _pysimCardIccid (cleared on disconnect) so the click needs no round-trip.
- Duplicate ICCID refusal now compares normalized values via
  cardsNormIccid/cardsFindDuplicateIccid (digits, spaced digits and raw EF
  hex all identify the same card), skips the row being edited, ignores an
  empty field, and names the conflicting preset in the alert (translated).
- i18n RU: From card -> 'С карты', duplicate/unreadable alerts.
- Tests: cardsFindDuplicateIccid across formats and edit-skip,
  cardsIccidFromCard fill + alert path, form wiring guards, _pysimCardIccid
  tracking in the card-state harness, card-iccid availability gating in the
  indicator harness. 261 Python + 400 frontend tests green.
- Docs: help EN+RU Cards field table, READMEs, AGENTS. SW otaman-v185.

frontend/tests/card_state.test.js

@@ -24,7 +24,7 @@ function extractFunc(src, name) {
 let code = 'var _pysimCardStateKey = null;\nvar _pysimCardSession = null;\n'
 	+ 'var _pysimServerAvailable = null;\nvar _pysimCardEquipped = false;\n'
 	+ 'var _pysimProactiveSeq = null;\nvar _pysimStkSig = null;\nvar _pysimAdmVerified = null;\n'
-	+ 'var _cardsAutoIccid = null;\n';
+	+ 'var _cardsAutoIccid = null;\nvar _pysimCardIccid = null;\n';
 code += extractFunc(html, 'pysimCardStateUpdate') + '\n';
 code += extractFunc(html, 'pysimAvailabilityState') + '\n';
 code += extractFunc(html, 'pysimControlDisabled') + '\n';
@@ -61,6 +61,7 @@ function setup() {
 	_pysimAdmVerified = null;
 	_pysimServerAvailable = null;
 	_cardsAutoIccid = null;
+	_pysimCardIccid = null;
 	globalThis.document = {
 		getElementById: id => id === 'state-indicator-adm' ? adm : el,
 		querySelectorAll: () => [],
@@ -122,6 +123,19 @@ test('a disconnect clears the ICCID auto-selection guard', () => {
 	assert.strictEqual(_cardsAutoIccid, null);
 });
 
+test('the last status ICCID is kept for the From card button', () => {
+	setup();
+	pysimCardStateUpdate(status({ connected: true, card_present: true, card_session: 2, iccid: '8970119000004600098' }));
+	assert.strictEqual(_pysimCardIccid, '8970119000004600098');
+	// equipped but unreadable -> null (button disabled)
+	pysimCardStateUpdate(status({ connected: true, card_present: true, card_session: 2, iccid: null }));
+	assert.strictEqual(_pysimCardIccid, null);
+	// disconnect clears it as well
+	pysimCardStateUpdate(status({ connected: true, card_present: true, card_session: 2, iccid: '8970119000004600098' }));
+	pysimCardStateUpdate(status({ connected: false, card_present: false, card_session: 6 }));
+	assert.strictEqual(_pysimCardIccid, null);
+});
+
 test('card session change triggers a data reset', () => {
 	const { calls } = setup();
 	pysimCardStateUpdate(status({ card_session: 3 }));