api#347: сохранить part в именованных наборах и процентных контрактах

admin/tests/link-builder.php

@@ -53,7 +53,7 @@ $targets = $linkStore->read('targets.json');$targets['first']['domain']='renamed
 $renamed = $builder->get('first');
 linkCheck(str_starts_with($renamed['url'],'https://renamed.example/?') && !str_contains($renamed['url'],'first.example'), 'domain rename rebases saved URL to current origin');
 linkCheck($renamed['selection']===$modified && $renamed['saved_at']===$updated['saved_at'] && parse_url($renamed['url'],PHP_URL_QUERY)===parse_url($updated['url'],PHP_URL_QUERY), 'domain rename preserves selection, timestamp and existing query noise');
-foreach (array_keys($selection) as $key) {
+foreach (array_diff(array_keys($selection),['part']) as $key) {
     $manualSelection=array_fill_keys(array_keys($selection),'rnd');$manualSelection[$key]='9';
     $manual=$builder->save('second',$manualSelection);parse_str(parse_url($manual['url'],PHP_URL_QUERY),$manualParameters);
     linkCheck($builder->get('second')===$manual&&$manual['selection'][$key]==='9'&&$manualParameters[$key][4]==='9','manual digit 9 encodes and persists for '.$key);