fix(normalizer): preserve trailing Bemerkung text after parent pattern

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

tools/import-normalizer/persons_tree.py

@@ -267,7 +267,13 @@ def _parse_bemerkung(
         if not m:
             continue
 
-        name_part = m.group(1).strip().rstrip("!., ")
+        # Split the captured group on the first comma or semicolon to separate
+        # the name part from any trailing description (e.g. ", nach Mexiko emigriert")
+        raw_names, _, trailing = m.group(1).strip().partition(",")
+        if not trailing:
+            raw_names, _, trailing = raw_names.partition(";")
+        name_part = raw_names.strip().rstrip("!., ")
+        remainder = trailing.strip().lstrip(".,! ")
         parts = [p.strip() for p in _AND_RE.split(name_part) if p.strip()]
         rels: list[dict] = []
         unres: list[dict] = []
@@ -300,7 +306,6 @@ def _parse_bemerkung(
                     "reason": reason,
                 })
 
-        remainder = s[m.end():].strip().lstrip(".,! ")
         return rels, unres, remainder
 
     # No pattern matched — full text goes to notes, nothing to unresolved