feat(i18n): tool scripts in English

- tools/build_word_template.py: default field placeholder
- tools/generate_word_vorlagen.sh: header comments

tools/generate_word_vorlagen.sh

@@ -2,10 +2,10 @@
 # Convert the formal-document Markdown vorlagen to Word .docx
 # using slohmaier-doc-template.docx as style reference.
 #
-# Word ist Industriestandard fuer formelle Freigabe / ISO-9001-Audits.
-# Markdown bleibt die Source of Truth, Word wird daraus generiert.
+# Word is the industry standard for formal release / ISO 9001 audits.
+# Markdown remains the source of truth; Word is generated from it.
 #
-# Diese Vorlagen werden zu Word konvertiert:
+# These templates are converted to Word:
 set -euo pipefail
 
 REPO_ROOT="$(cd "$(dirname "$0")/.." && pwd)"
@@ -18,7 +18,7 @@ if [[ ! -f "$TEMPLATE" ]]; then
   python3 "$REPO_ROOT/tools/build_word_template.py"
 fi
 
-# Formelle Dokumente (zu Word):
+# Formal documents (to Word):
 FORMAL_DOCS=(
   PID-vorlage
   PM-Plan-vorlage
@@ -48,5 +48,5 @@ for doc in "${FORMAL_DOCS[@]}"; do
 done
 
 echo ""
-echo "Done. Word-Vorlagen unter: $DST/"
+echo "Done. Word templates at: $DST/"
 ls -la "$DST/"