fix: Use i18n key for full-text search placeholder

Replace hardcoded '(full-text)' with i18n key 'search.fullText'
so it displays '(Volltext)' in German.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: raifdmueller

website/src/main.js

@@ -85,7 +85,7 @@ function triggerSearchIndexBuild() {
     .then(() => {
       ;['search-input', 'header-search-input'].forEach((id) => {
         const el = document.getElementById(id)
-        if (el) el.placeholder = `${i18n.t('search.placeholder')} (full-text)`
+        if (el) el.placeholder = `${i18n.t('search.placeholder')} ${i18n.t('search.fullText')}`
       })
     })
     .catch((err) => {

website/src/translations/de.json

@@ -14,6 +14,7 @@
   "main.proposeAnchor": "Neuen Anker vorschlagen",
   "main.documentation": "Dokumentation",
   "search.placeholder": "Anchors durchsuchen...",
+  "search.fullText": "(Volltext)",
   "filter.allRoles": "Alle Rollen",
   "filter.anchors": "Anker",
   "footer.tagline": "Semantic Anchors - Gemeinsames Vokabular für LLM-Kommunikation",

website/src/translations/en.json

@@ -14,6 +14,7 @@
   "main.proposeAnchor": "Propose New Anchor",
   "main.documentation": "Documentation",
   "search.placeholder": "Search anchors...",
+  "search.fullText": "(full-text)",
   "filter.allRoles": "All Roles",
   "filter.anchors": "anchors",
   "footer.tagline": "Semantic Anchors - Shared vocabulary for LLM communication",