feat: migración PZ La Casita, fix motor N/A/RUEDA, cache-buster catálogo y variant_ids

pos/services/catalog_service.py

@@ -349,11 +349,28 @@ def get_engines(master_conn, model_id, year_id, mye_ids=None):
         FROM model_year_engine mye
         JOIN engines e ON e.id_engine = mye.engine_id
         WHERE mye.model_id = ANY(%s) AND mye.year_id = %s{mye_filter}
-        ORDER BY e.name_engine, mye.trim_level
+        ORDER BY e.name_engine, mye.trim_level, mye.id_mye
     """, tuple(params))
     rows = cur.fetchall()
     cur.close()
-    return [{'id_mye': r[0], 'name_engine': r[1], 'trim_level': r[2] or ''} for r in rows]
+
+    def _clean_engine_name(name):
+        if not name or name.strip().upper() in ('N/A', 'RUEDA', ''):
+            return 'Sin especificar'
+        return name.strip()
+
+    # Deduplicate identical (name, trim) entries so the user doesn't see
+    # multiple indistinguishable "Sin especificar" options.
+    seen = set()
+    results = []
+    for id_mye, name_engine, trim_level in rows:
+        clean_name = _clean_engine_name(name_engine)
+        key = (clean_name, trim_level or '')
+        if key in seen:
+            continue
+        seen.add(key)
+        results.append({'id_mye': id_mye, 'name_engine': clean_name, 'trim_level': key[1]})
+    return results
 
 
 def get_categories(master_conn, mye_id, allowed_brands=None):