chore(title): h1 header → "Human Experience Filter Simulation" (4-lang, matches page title)

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

simulator/static/i18n.js

@@ -17,7 +17,7 @@
 
   // Visitor-facing control chrome. Keys match `data-i18n` attributes in index.html.
   const UI_STRINGS = {
-    "app.title":      { en: "Human Experience Filter — Alteration Preview", es: "Filtro de Experiencia Humana — Vista previa de alteración", fr: "Filtre d’Expérience Humaine — Aperçu d’altération", ja: "ヒューマン・エクスペリエンス・フィルター — 変容プレビュー" },
+    "app.title":      { en: "Human Experience Filter Simulation", es: "Simulación del Filtro de Experiencia Humana", fr: "Simulation du Filtre d’Expérience Humaine", ja: "ヒューマン・エクスペリエンス・フィルター・シミュレーション" },
     "loading.title":  { en: "Loading Universe", es: "Cargando el universo", fr: "Chargement de l’univers", ja: "宇宙を読み込み中" },
     "welcome.launch": { en: "Launch Simulator", es: "Iniciar simulador", fr: "Lancer le simulateur", ja: "シミュレーターを起動" },
     "credits.link":   { en: "ⓘ Credits & licenses", es: "ⓘ Créditos y licencias", fr: "ⓘ Crédits et licences", ja: "ⓘ クレジットとライセンス" },

simulator/static/index.html

@@ -44,7 +44,7 @@
     </div>
   </div>
   <header>
-    <h1 data-i18n="app.title">Human Experience Filter — Alteration Preview</h1>
+    <h1 data-i18n="app.title">Human Experience Filter Simulation</h1>
     <a href="about.html" class="credits-link" data-i18n="about.link">About</a>
     <a href="credits.html" class="credits-link" data-i18n="credits.link">ⓘ Credits &amp; licenses</a>
   </header>