Fix WebGL timeline startup ordering

public/js/text-processor-module.js

@@ -24,6 +24,7 @@ class TextProcessorModule extends BaseModule {
             'hyphenate',
             'setLocale',
             'loadHyphenopolyLoader',
+            'ensureHyphenopolySeedElements',
             'normalizeHyphenationLocale',
             'applyLocaleTypography',
             'getTypographyLocale',
@@ -162,6 +163,7 @@ class TextProcessorModule extends BaseModule {
             this.hyphenatorReady = false;
 
             await this.loadHyphenopolyLoader();
+            this.ensureHyphenopolySeedElements(locale);
 
             window.Hyphenopoly.config({
                 require: {
@@ -203,6 +205,35 @@ class TextProcessorModule extends BaseModule {
         }
     }
 
+    ensureHyphenopolySeedElements(locale = 'en-us') {
+        const normalizedLocale = this.normalizeHyphenationLocale(locale);
+        let container = document.getElementById('hyphenopoly_seed_elements');
+        if (!container) {
+            container = document.createElement('div');
+            container.id = 'hyphenopoly_seed_elements';
+            container.setAttribute('aria-hidden', 'true');
+            Object.assign(container.style, {
+                position: 'absolute',
+                width: '1px',
+                height: '1px',
+                overflow: 'hidden',
+                opacity: '0',
+                pointerEvents: 'none',
+                left: '-9999px',
+                top: '-9999px'
+            });
+            document.body.appendChild(container);
+        }
+        container.innerHTML = '';
+        ['hyphenate', 'hyphenatePipe'].forEach((className) => {
+            const seed = document.createElement('span');
+            seed.className = className;
+            seed.lang = normalizedLocale;
+            seed.textContent = normalizedLocale.startsWith('de') ? 'Silbentrennung' : 'hyphenation';
+            container.appendChild(seed);
+        });
+    }
+
     loadHyphenopolyLoader() {
         return new Promise((resolve, reject) => {
             if (window.Hyphenopoly && typeof window.Hyphenopoly.config === 'function') {