feat: add persistent badges and admin badge page

app/templates/settings/badges.html

@@ -0,0 +1,41 @@
+{% extends "base.html" %}
+{% from "partials/macros.html" import badge_card, nav_icon %}
+{% block title %}Badge-Regeln · Putzliga{% endblock %}
+{% block page_title %}Badge-Regeln{% endblock %}
+{% block content %}
+  <section class="settings-tabs">
+    {% for endpoint, label, icon in settings_tabs %}
+      <a href="{{ url_for(endpoint) }}" class="settings-tab {% if active_settings_tab == endpoint %}is-active{% endif %}">
+        {{ nav_icon(icon) }}
+        <span>{{ label }}</span>
+      </a>
+    {% endfor %}
+  </section>
+
+  <section class="panel">
+    <p class="eyebrow">Admin-Bereich</p>
+    <h2>Badges konfigurieren</h2>
+    <p class="muted">Die Icons stammen aus `heinz.marketing` und wurden für Putzliga lokal übernommen. Schwelle, Bonus und Aktiv-Status kannst du hier steuern.</p>
+    <div class="badge-settings">
+      {% for badge in badges %}
+        <form method="post" action="{{ url_for('settings.update_badge', badge_id=badge.id) }}" class="badge-setting-card">
+          <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
+          {{ badge_card(badge) }}
+          <div class="field field--compact">
+            <label>Schwelle</label>
+            <input type="number" name="threshold" min="1" value="{{ badge.threshold }}">
+          </div>
+          <div class="field field--compact">
+            <label>Bonus</label>
+            <input type="number" name="bonus_points" min="0" value="{{ badge.bonus_points }}">
+          </div>
+          <label class="checkbox checkbox--compact">
+            <input type="checkbox" name="active" {% if badge.active %}checked{% endif %}>
+            <span>Aktiv</span>
+          </label>
+          <button type="submit" class="button button--secondary">Badge speichern</button>
+        </form>
+      {% endfor %}
+    </div>
+  </section>
+{% endblock %}