esim: local eUICC operations in the Phone simulator tab (v2.8.0)

New eSIM pill (Phone simulator) for SGP.22/32 cards, built on pySim's
ES10 static API — no lpac, no new dependencies, no pysim patches, no
SM-DP+ interaction:

- Chip: EID, EUICCInfo1/2, configured addresses (ES10a/b).
- Profiles: GetProfilesInfo with metadata (state, nickname, provider,
  ICCID, ISD-P AID, class, owner, icon).
- Notifications: read-only ListNotification viewer.
- Switch: Enable/DisableProfile with RefreshFlag=1; the card's REFRESH
  (fetched/answered/logged by the transport's proactive handler) or an ok
  result triggers _esim_reinit() — reset + equip + _apply_equipped_card —
  so the ICCID, network state and cached views are re-read.
- Server: pysim_simple_server/esim.py, GET /api/esim/chip|profiles|
  notifications, POST /api/esim/profile (all under _CARD_LOCK; 400
  not_an_euicc), euicc/eid in /api/status.
- Tests: tests/test_esim.py (fake scc, monkeypatched store_data_tlv),
  frontend/tests/esim.test.js; help EN/RU, docs/api.md, AGENTS.

frontend/tests/esim.test.js

@@ -0,0 +1,94 @@
+const { test } = require('node:test');
+const assert = require('node:assert');
+const fs = require('node:fs');
+const path = require('node:path');
+
+const html = fs.readFileSync(path.join(__dirname, '..', 'index.html'), 'utf8');
+
+function extractFunc(src, name) {
+	const re = new RegExp('(?:async\\s+)?function\\s+' + name + '\\s*\\([^)]*\\)\\s*\\{');
+	const m = re.exec(src);
+	if (!m) throw new Error('function ' + name + ' not found');
+	let i = m.index + m[0].length - 1;
+	let depth = 0;
+	for (; i < src.length; i++) {
+		if (src[i] === '{') depth++;
+		else if (src[i] === '}') {
+			depth--;
+			if (depth === 0) break;
+		}
+	}
+	return src.slice(m.index, i + 1);
+}
+
+let code = '';
+for (const fn of ['esimLabel', 'esimGroupEid', 'esimFieldRows', 'esimResultText',
+	'esimStateLabel', 'esimOperationsText', 'esimProfileRows']) {
+	code += extractFunc(html, fn) + '\n';
+}
+for (const c of ['ESIM_CHIP_LABELS', 'ESIM_RESULT_KEYS']) {
+	code += html.match(new RegExp('const ' + c + ' = \\{[\\s\\S]*?\\n\\};'))[0]
+		.replace('const ', 'var ') + '\n';
+}
+code += 'function t(s){return s;}\n';
+eval(code);
+
+test('esimGroupEid groups the hex digits in fours', () => {
+	assert.strictEqual(esimGroupEid('89049032000000000000000000000001'),
+		'8904 9032 0000 0000 0000 0000 0000 0001');
+	assert.strictEqual(esimGroupEid(''), '');
+});
+
+test('esimLabel maps known chip keys and prettifies the rest', () => {
+	assert.strictEqual(esimLabel('svn'), 'SVN');
+	assert.strictEqual(esimLabel('default_dp_address'), 'Default SM-DP+ address');
+	assert.strictEqual(esimLabel('some_unknown_key'), 'Some unknown key');
+});
+
+test('esimFieldRows flattens nested values and skips empties', () => {
+	const rows = esimFieldRows({
+		svn: '1.2.3', empty: null, blank: '', nested: { profile_version: '2.2' },
+		list: ['a', 'b'], zero: 0,
+	});
+	assert.deepStrictEqual(rows, [
+		['SVN', '1.2.3'],
+		['Nested / profile version', '2.2'],
+		['List', 'a, b'],
+		['Zero', '0'],
+	]);
+});
+
+test('esimResultText localizes result codes and passes errors through', () => {
+	assert.strictEqual(esimResultText({ result: 'catBusy' }), 'card is busy with a CAT session');
+	assert.strictEqual(esimResultText({ result: 'ok' }), 'ok');
+	assert.strictEqual(esimResultText({ error: 'no card' }), 'no card');
+	assert.strictEqual(esimResultText(null), '');
+});
+
+test('esimStateLabel and esimOperationsText map the profile metadata', () => {
+	assert.strictEqual(esimStateLabel('enabled'), 'Enabled');
+	assert.strictEqual(esimStateLabel('disabled'), 'Disabled');
+	assert.strictEqual(esimStateLabel('other'), 'other');
+	assert.strictEqual(esimOperationsText(['enable', 'delete']), 'enable, delete');
+	assert.strictEqual(esimOperationsText([]), '');
+});
+
+test('esimProfileRows renders the metadata in a stable order', () => {
+	const rows = esimProfileRows({
+		iccid: '8970119000004002667', isdp_aid: 'A0000005591010FFFFFFFF8900000100',
+		provider: 'Miranda', name: 'Miranda LTE', class: 'operational',
+		owner: '250-99', icon_type: 'png',
+	});
+	assert.deepStrictEqual(rows.map(r => r[0]),
+		['ICCID', 'ISD-P AID', 'Provider', 'Profile name', 'Class', 'Owner', 'Icon']);
+	assert.strictEqual(rows[0][1], '8970119000004002667');
+});
+
+test('the eSIM pill is wired into the Phone simulator tab', () => {
+	assert.ok(html.includes('data-phone-sub="esim"'));
+	assert.ok(html.includes('id="phone-sub-esim"'));
+	assert.ok(html.includes("'phone', 'tr', 'esim'"));
+	assert.ok(html.includes('id="esim-refresh-btn"'));
+	assert.ok(html.includes('id="esim-profiles"'));
+	assert.ok(html.includes('id="esim-notifications"'));
+});