fix(transfers): archive child/spouse from parent after separation

When a child separation completes, the child record now gets is_archived=1
so it no longer appears in the parent's family tree. Previously only status
was changed to 'separated' but the record remained visible.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Modules/Transfers/Services/TransferProcessor.php

@@ -194,16 +194,20 @@ final class TransferProcessor
                 null
             );
 
-            // 6. Update source dependents
+            // 6. Update source dependents — archive them from parent
             if ($request['child_id']) {
                 $db->update('children', [
                     'status'        => 'separated',
                     'classification'=> 'separated',
+                    'is_archived'   => 1,
+                    'archived_at'   => date('Y-m-d H:i:s'),
                     'updated_at'    => date('Y-m-d H:i:s'),
                 ], '`id` = ?', [(int) $request['child_id']]);
             } elseif ($request['spouse_id']) {
                 $db->update('spouses', [
                     'status'     => 'separated',
+                    'is_archived' => 1,
+                    'archived_at' => date('Y-m-d H:i:s'),
                     'updated_at' => date('Y-m-d H:i:s'),
                 ], '`id` = ?', [(int) $request['spouse_id']]);
             }