feat(scheduling): retire replaced participant responses

src/govoplan_scheduling/backend/router.py

@@ -67,7 +67,7 @@ from govoplan_scheduling.backend.service import (
     submit_scheduling_availability,
     submit_public_scheduling_participation,
     update_scheduling_candidate_slot,
-    update_scheduling_request_with_invitation_tokens,
+    update_scheduling_request_with_change_log,
 )
 
 
@@ -431,7 +431,7 @@ def api_update_scheduling_request(
         request_id=request_id,
     )
     try:
-        request, _invitation_tokens = update_scheduling_request_with_invitation_tokens(
+        request, participant_mutations = update_scheduling_request_with_change_log(
             session,
             tenant_id=principal.tenant_id,
             request_id=request_id,
@@ -439,6 +439,21 @@ def api_update_scheduling_request(
         )
     except SchedulingError as exc:
         raise _scheduling_http_error(exc) from exc
+    for mutation in participant_mutations:
+        _audit_invitation_action(
+            session,
+            principal=principal,
+            request_id=request_id,
+            participant_id=mutation.participant_id,
+            action=mutation.action,
+            details={
+                "replacement_participant_id": mutation.replacement_participant_id,
+                "changed_fields": list(mutation.changed_fields),
+                "invitation_revoked": mutation.invitation_revoked,
+                "retired_response_count": mutation.retired_response_count,
+                "notification_id": mutation.notification_id,
+            },
+        )
     response = _request_response(request, principal=principal)
     session.commit()
     return response