Fix crash in /aardbei/diff_people

piket_server/routes/aardbei.py

     return match_local_aardbei(aardbei_people)
 
 
-@app.route("/people/aardbei_diff", methods=["POST"])
+@app.route("/aardbei/diff_people", methods=["POST"])
 def aardbei_diff() -> Tuple[Dict[str, Any], int]:
     data: Dict[str, str] = request.json
     link = common_prepare_aardbei_sync(
         {
             "num_changes": link.num_changes,
             "new_people": [member.person.full_name for member in link.remote_only],
-            "link_existing": [match.local.name for match in link.matches],
-            "altered_name": [match.local.name for match in link.matches],
+            "link_existing": [match.local.full_name for match in link.matches],
+            "altered_name": [match.local.full_name for match in link.matches],
         },
         200,
     )
 
 
-@app.route("/people/aardbei_apply", methods=["POST"])
+@app.route("/aardbei/sync_people", methods=["POST"])
 def aardbei_apply() -> Union[Tuple[Dict[str, Any], int]]:
     data: Dict[str, str] = request.json
     link = common_prepare_aardbei_sync(