fix(import): Stammbaum-/Eltern-/isResident-Tickets der Züchterin (18)

Import-Logik:
- Externe Gründer (Zooladen/„von Privat"/„from …, <Land>") bekommen keine
  erfundenen Chart-Eltern mehr → Bill, Cooky, Zadar haben korrekt unbekannte
  Eltern (is_external_origin). [#5,#13,#28]
- Hagrid: externe Zucht wird nicht mehr als Bestand markiert (isResident=false)
  + Leerhüllen-Dedup → ein Datensatz mit Eltern Snickers × Milka. [#17,#18,#20a]
- Gender-Index: eindeutiges Geschlecht schlägt unbekanntes Duplikat → Rollen-
  Auflösung repariert (Vance→Mutter Enya, Zac→Vater Vance/Mutter Dorie). [#33,#35]
- „Eltern: X + Y"-Wurfnotizen werden geparst (~46 Würfe); v.d.↔von-den-Namens-
  kanon (Theodore→BlackFire). [#9,#11,#30]

Daten-Overrides (conflict-decisions.json, jetzt auch Gender + exakte Eltern):
- Mozart→weiblich [#2], Yuki=Camaro×Izumi [#23], Gold-Mutter=Chelsea [#36],
  Arya=Vance×Sansa (Geschwisterverpaarung) [#16], Tony→Sammy [#12],
  Odelia [#15], Jamie→Danny [#31], Silver=Taro×Beatrice [#11].

Frontend: GerbilDetailPage blendet für isResident=false Würfe + Charakter aus
(Hinweis nonResidentNote). [#17,#20b]

Tests: test_extract/test_merge_resolve erweitert; vitest 135, playwright tiere 34 grün.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tools/import/extract.py

@@ -149,6 +149,38 @@ def is_clan_zucht(z):
     return norm_zucht(z) == "kleinechaote"
 
 
+# Name/breeder markers for an externally-acquired animal whose ancestry is NOT
+# in the breeder's own charts: pet shops, "von Privat" private hobbyists and
+# foreign catteries ("from … , Croatia"). Such founders have genuinely UNKNOWN
+# parents — the chart-position heuristic must not fabricate parents for them.
+_EXTERNAL_MARKERS = re.compile(
+    r"\b(zooladen|zoohandlung|obi|fressnapf|dehner|von\s+privat|privatkauf|"
+    r"vom\s+bauern|aus\s+der\s+zoohandlung)\b", re.IGNORECASE)
+# Foreign acquisition: "<name> from <cattery>, <Country>" (a comma + country word).
+_FOREIGN_FROM = re.compile(
+    r"\bfrom\b.+,\s*(croatia|kroatien|poland|polen|netherlands|niederlande|"
+    r"belgium|belgien|france|frankreich|austria|österreich|switzerland|schweiz|"
+    r"italy|italien|spain|spanien|czech|tschechien|hungary|ungarn)\b", re.IGNORECASE)
+
+
+def is_external_origin(name, zucht=None, breeder=None):
+    """True if an animal is an externally-acquired founder with genuinely unknown
+    ancestry (pet shop, private hobbyist, foreign cattery). For such animals the
+    positional chart heuristic must NOT invent parents — their parents are unknown.
+
+    NOT external: own stock ('… von den Kleinen Chaoten') and ordinary German
+    catteries that appear as in-chart ancestors (e.g. 'of Black Forest') — those
+    can legitimately have charted ancestors elsewhere; this gate is only for the
+    leaf/founder markers above.
+    """
+    blob = " ".join(p for p in (name, zucht, breeder) if p)
+    if _EXTERNAL_MARKERS.search(blob):
+        return True
+    if _FOREIGN_FROM.search(name or ""):
+        return True
+    return False
+
+
 def canon_pair(raw):
     """Full raw name -> (normalised call-name, canonical zucht)."""
     name, zucht = split_name_zucht(raw)
@@ -319,6 +351,11 @@ def _reconstruct_parents(animals):
         if not nxt:
             continue
         for a in group:
+            # Externally-acquired founders (pet shop / von Privat / foreign cattery)
+            # have genuinely UNKNOWN ancestry — do NOT invent chart-position parents
+            # for them (tickets #5 Bill von Privat, #13 Cooky vom Zooladen, #28 Zadar).
+            if is_external_origin(a.get("name"), a.get("zucht"), a.get("breeder")):
+                continue
             r = a["_row"]
             above = [x for x in nxt if x["_row"] <= r]
             below = [x for x in nxt if x["_row"] > r]
@@ -1103,6 +1140,12 @@ def apply_conflict_decisions(merged, conflicts, path):
             a["farbschlagVariants"] = [d["farbschlag"]]
         if d.get("dateOfDeath"):                       # D5 death-date resolutions
             a["death"] = norm_dob(d["dateOfDeath"])
+        if d.get("gender"):                            # gender override (box colour misread)
+            g = d["gender"].strip().lower()
+            g = {"m": "male", "männlich": "male", "w": "female",
+                 "f": "female", "weiblich": "female"}.get(g, g)
+            if g in ("male", "female"):
+                a["gender"] = g
         if "father" in d or "mother" in d:
             new_refs = []
             if d.get("father"):