startup: cardless start is a normal state, not an init failure (v2.2.17)

- __main__ catches NoCardError from the startup init (fast and stock paths,
  and the stock fallback) and reports it with one line - 'INIT: no card in
  the reader - server ready; insert a card or press Equip' - without a
  traceback and without the stock-pysim fallback. Any other init failure
  still falls back with its traceback.
- The cardless PysimApp construction no longer prints pySim's 'Waiting for
  card...' or pySim-shell's 'pySim-shell not equipped!': a new _LineFilter
  (server.py) drops whole matching lines while proxying encoding/isatty/
  fileno (the cmd2 Rich console probes them on its stdout).
- Removed the now-duplicate 'INIT: card not initialized' tail line and the
  cat_cla assignment when no card was detected (scc exists but is cardless).
- Tests: tests/test_startup_cardless.py (line filter semantics incl. partial
  lines, one-line cardless report, no fallback call, real failures keep the
  fallback + traceback, muted PysimApp construction). Live-verified against
  an empty SCR 3310: two init lines, no traceback, API serves 2.2.17.
- Docs: READMEs quick start, help EN+RU (Card reader), AGENTS (equip flow).
  SW cache otaman-v184.

frontend/help-ru.html

@@ -517,7 +517,7 @@ start.bat           # запускает сервер (PWA + API)</pre>
 		<li><strong>Резерв сервера</strong> — при запуске без аргументов ридера сервер сам опрашивает PC/SC-ридер при старте (3 попытки с интервалом 2&nbsp;с)</li>
 		<li><strong>Serial-ридеры</strong> — запустите сервер вручную с <code class="font-mono text-sm">-d /dev/ttyUSB0</code> (Linux)</li>
 	</ul>
-	<p class="text-sm mb-3">Если карта отсутствует, вкладка &laquo;Картридер&raquo; показывает &laquo;Карта не обнаружена. Вставьте карту и нажмите Подключить карту&raquo;.</p>
+	<p class="text-sm mb-3">Если карта отсутствует, вкладка &laquo;Картридер&raquo; показывает &laquo;Карта не обнаружена. Вставьте карту и нажмите Подключить карту&raquo;. Вставьте карту — сервер инициализирует её автоматически (auto-equip включён по умолчанию) — либо нажмите <strong>Equip card</strong>. Сам сервер запускается и с пустым картридером: отсутствие карты — нормальное состояние, а не ошибка.</p>
 
 	<h3 id="manual-install" class="text-lg font-medium mb-2">9.6 Ручная установка</h3>
 	<pre class="font-mono text-xs bg-gray-100 dark:bg-slate-800 rounded p-3 mb-3"># Создать и активировать venv

frontend/help.html

@@ -517,7 +517,7 @@ start.bat           # starts the server (serves PWA + API)</pre>
 		<li><strong>Server fallback</strong> — started without reader arguments, the server itself probes for a PC/SC reader at startup (3 attempts, 2&nbsp;s apart)</li>
 		<li><strong>Serial readers</strong> — start the server manually with <code class="font-mono text-sm">-d /dev/ttyUSB0</code> (Linux)</li>
 	</ul>
-	<p class="text-sm mb-3">If no card is present, the Card reader tab shows &ldquo;No card detected&rdquo;. Insert the card and click <strong>Equip card</strong> to initialize it.</p>
+	<p class="text-sm mb-3">If no card is present, the Card reader tab shows &ldquo;No card detected&rdquo;. Insert the card — the server auto-equips it (auto-equip is on by default) — or click <strong>Equip card</strong>. The server itself starts fine with an empty reader; the absence of a card is a normal state, not an error.</p>
 
 	<h3 id="manual-install" class="text-lg font-medium mb-2">9.6 Manual installation</h3>
 	<pre class="font-mono text-xs bg-gray-100 dark:bg-slate-800 rounded p-3 mb-3"># Create and activate a venv

frontend/index.html

@@ -18,7 +18,7 @@
 <div class="max-w-7xl mx-auto px-6 py-2">
 
 	<div class="flex items-center justify-between mb-3">
-		<h1 class="text-2xl font-bold text-heading">OTAMan <span id="slogan" class="text-sm font-normal text-gray-500 dark:text-slate-400 ml-2" data-l10n="SIM OTA with a Human Face">SIM OTA with a Human Face</span> <span class="text-xs text-gray-400 dark:text-slate-500 ml-1">v2.2.16</span></h1>
+		<h1 class="text-2xl font-bold text-heading">OTAMan <span id="slogan" class="text-sm font-normal text-gray-500 dark:text-slate-400 ml-2" data-l10n="SIM OTA with a Human Face">SIM OTA with a Human Face</span> <span class="text-xs text-gray-400 dark:text-slate-500 ml-1">v2.2.17</span></h1>
 		<div class="flex items-center gap-4">
 			<span id="state-indicator" class="flex items-center select-none" style="cursor:default" title="Connecting...">
 				<span id="state-indicator-dot" class="text-xs text-gray-400" title="Connecting...">●</span>

frontend/sw.js

@@ -1,4 +1,4 @@
-const CACHE = 'otaman-v183';
+const CACHE = 'otaman-v184';
 const URLS = [
   'index.html',
   'help.html',