add german stubs, mastodon test

scripts/create_german_stubs.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+set -e
+
+CONTENT_DIR="../content"
+
+find "$CONTENT_DIR" -type f \( -name 'index.md' -o -name '_index.md' \) | while read -r file; do
+  base="${file%.md}"             # Remove .md
+  new_file="${base}.de.md"       # Append .de.md
+
+if [ ! -f "$new_file" ]; then
+  echo "Creating $new_file"
+  cp "$file" "$new_file"
+
+  # macOS-compatible sed (empty backup extension)
+  sed -i '' 's/^title = "\(.*\)"/title = "Übersetzung: \1"/' "$new_file"
+else
+  echo "Skipping $new_file (already exists)"
+fi
+
+done
+
+echo "German stub creation complete."