RSS → ntfy bridge with modern web UI

Features: feed CRUD, per-feed ntfy target (incl. private servers),
Telegram/webhook channels, keyword filters, image attachments,
per-feed intervals, OPML import/export, notification history & stats,
users with roles, admin alerts, RU/EN i18n, light/dark theme,
notification preview, history search, activity chart. Dockerized.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/templates/login.html

@@ -0,0 +1,36 @@
+{% extends "base.html" %}
+{% block title %}RSS → ntfy{% endblock %}
+{% block body %}
+<div class="login-wrap">
+  <form class="login-card" method="post" action="/login">
+    <div class="login-logo">📡</div>
+    <h1>RSS → ntfy</h1>
+    <p class="muted" data-i18n="login.subtitle">Войдите, чтобы продолжить</p>
+    {% if error %}<div class="alert error" data-i18n="login.error">{{ error }}</div>{% endif %}
+    <label><span data-i18n="login.user">Логин</span>
+      <input type="text" name="username" autocomplete="username" required autofocus>
+    </label>
+    <label><span data-i18n="login.pass">Пароль</span>
+      <input type="password" name="password" autocomplete="current-password" required>
+    </label>
+    <button type="submit" class="btn primary block" data-i18n="login.submit">Войти</button>
+    <div class="login-controls">
+      <button type="button" class="icon-btn" id="theme-btn" data-i18n-title="theme.toggle">🌓</button>
+      <select id="lang-select" class="lang-select">
+        <option value="ru">RU</option>
+        <option value="en">EN</option>
+      </select>
+    </div>
+  </form>
+</div>
+{% endblock %}
+{% block scripts %}
+<script>
+  applyI18n();
+  const ls = document.getElementById("lang-select");
+  ls.value = getLang();
+  ls.onchange = () => { setLang(ls.value); applyI18n(); };
+  document.getElementById("theme-btn").onclick = () =>
+    setTheme(getTheme() === "dark" ? "light" : "dark");
+</script>
+{% endblock %}