feat(IFK-9): interactive world map, charts, stats banner, timeline

- Add centralized data/countries.json with all 17 countries (EN/DE/FR)
- Add Leaflet choropleth world map with TopoJSON boundaries
- Add stats banner shortcode (enforced/passed/progress/guidelines counts)
- Add Chart.js charts (status donut, age limits bar, legislation timeline)
- Add Mermaid timeline of legislation milestones 2020-2026
- Refactor child-safety-map table to use data file (DRY)
- Update all 3 language articles (EN/DE/FR)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

layouts/shortcodes/world-map.html

@@ -0,0 +1,91 @@
+{{ $lang := .Page.Language.Lang }}
+{{ $countries := hugo.Data.countries }}
+
+<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/leaflet@1.9.4/dist/leaflet.min.css" />
+<style>
+.ifk-map-wrap { max-width: 100%; margin: 2rem 0; }
+.ifk-map-wrap h3 { text-align: center; margin-bottom: 0.5rem; font-size: 1.25rem; }
+.ifk-map-subtitle { text-align: center; color: #666; font-size: 0.85rem; margin-bottom: 1rem; }
+#ifk-world-map { width: 100%; height: 420px; border-radius: 8px; background: #f0f4f8; }
+.ifk-map-legend {
+  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center;
+  margin-top: 1rem; font-size: 0.8rem;
+}
+.ifk-map-legend-item { display: flex; align-items: center; gap: 0.35rem; }
+.ifk-map-legend-swatch { width: 14px; height: 14px; border-radius: 3px; border: 1px solid rgba(0,0,0,0.1); }
+@media (max-width: 640px) { #ifk-world-map { height: 280px; } }
+</style>
+
+<div class="ifk-map-wrap">
+  <h3>{{ if eq $lang "de" }}Interaktive Weltkarte: Kinderschutzgesetze{{ else if eq $lang "fr" }}Carte interactive : lois de protection de l'enfance{{ else }}Interactive Map: Child Protection Laws{{ end }}</h3>
+  <p class="ifk-map-subtitle">{{ if eq $lang "de" }}Klicken Sie auf ein Land für Details{{ else if eq $lang "fr" }}Cliquez sur un pays pour plus de détails{{ else }}Click a country for details{{ end }}</p>
+  <div id="ifk-world-map"></div>
+  <div class="ifk-map-legend">
+    <div class="ifk-map-legend-item"><div class="ifk-map-legend-swatch" style="background:#1e40af"></div>{{ if eq $lang "de" }}In Kraft{{ else if eq $lang "fr" }}En vigueur{{ else }}Enforced{{ end }}</div>
+    <div class="ifk-map-legend-item"><div class="ifk-map-legend-swatch" style="background:#3b82f6"></div>{{ if eq $lang "de" }}Verabschiedet{{ else if eq $lang "fr" }}Adopté{{ else }}Passed{{ end }}</div>
+    <div class="ifk-map-legend-item"><div class="ifk-map-legend-swatch" style="background:#93c5fd"></div>{{ if eq $lang "de" }}In Bearbeitung{{ else if eq $lang "fr" }}En cours{{ else }}In Progress{{ end }}</div>
+    <div class="ifk-map-legend-item"><div class="ifk-map-legend-swatch" style="background:#dbeafe"></div>{{ if eq $lang "de" }}Richtlinien{{ else if eq $lang "fr" }}Directives{{ else }}Guidelines{{ end }}</div>
+    <div class="ifk-map-legend-item"><div class="ifk-map-legend-swatch" style="background:#e2e8f0"></div>{{ if eq $lang "de" }}Keine Daten{{ else if eq $lang "fr" }}Pas de données{{ else }}No Data{{ end }}</div>
+  </div>
+</div>
+
+<script src="https://cdn.jsdelivr.net/npm/leaflet@1.9.4/dist/leaflet.min.js"></script>
+<script src="https://cdn.jsdelivr.net/npm/topojson-client@3.1.0/dist/topojson-client.min.js"></script>
+<script>
+(function() {
+  var LANG = {{ $lang }};
+  var STATUS_COLORS = { enforced: '#1e40af', passed: '#3b82f6', progress: '#93c5fd', guidelines: '#dbeafe' };
+  var STATUS_LABELS = {
+    en: { enforced: 'Enforced', passed: 'Passed', progress: 'In Progress', guidelines: 'Guidelines' },
+    de: { enforced: 'In Kraft', passed: 'Verabschiedet', progress: 'In Bearbeitung', guidelines: 'Richtlinien' },
+    fr: { enforced: 'En vigueur', passed: 'Adopté', progress: 'En cours', guidelines: 'Directives' }
+  };
+
+  var countries = {{ $countries | jsonify }};
+  var byIsoNum = {};
+  countries.forEach(function(c) { byIsoNum[c.isoNum] = c; });
+
+  var map = L.map('ifk-world-map', {
+    center: [25, 10], zoom: 2, minZoom: 2, maxZoom: 6,
+    scrollWheelZoom: false, zoomControl: true
+  });
+
+  L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
+    attribution: '&copy; <a href="https://openstreetmap.org/copyright">OpenStreetMap</a>',
+    maxZoom: 6
+  }).addTo(map);
+
+  fetch('https://cdn.jsdelivr.net/npm/world-atlas@2.0.2/countries-110m.json')
+    .then(function(r) { return r.json(); })
+    .then(function(topo) {
+      var geo = topojson.feature(topo, topo.objects.countries);
+      L.geoJSON(geo, {
+        style: function(feature) {
+          var id = String(feature.id).padStart(3, '0');
+          var c = byIsoNum[id];
+          return {
+            fillColor: c ? STATUS_COLORS[c.status] : '#e2e8f0',
+            weight: 0.8,
+            color: '#94a3b8',
+            fillOpacity: c ? 0.8 : 0.3
+          };
+        },
+        onEachFeature: function(feature, layer) {
+          var id = String(feature.id).padStart(3, '0');
+          var c = byIsoNum[id];
+          if (!c) return;
+          var loc = c[LANG] || c.en;
+          var labels = STATUS_LABELS[LANG] || STATUS_LABELS.en;
+          layer.bindPopup(
+            '<strong>' + c.flag + ' ' + loc.name + '</strong><br>' +
+            '<em>' + loc.law + '</em><br>' +
+            '<span style="color:' + STATUS_COLORS[c.status] + ';font-weight:600">' + labels[c.status] + '</span> (' + c.year + ')<br>' +
+            loc.detail
+          );
+          layer.on('mouseover', function(e) { e.target.setStyle({ weight: 2, color: '#1e293b' }); });
+          layer.on('mouseout', function(e) { e.target.setStyle({ weight: 0.8, color: '#94a3b8' }); });
+        }
+      }).addTo(map);
+    });
+})();
+</script>