organic: Add external BioC api

www/organic/external/bioqs/.operators.py

@@ -69,6 +69,7 @@ def main() -> None:
                 'validTo': '-'.join(reversed(srow[2].split('-'))),
                 'type': srow[3],
                 'attachmentSid': srow[4],
+                'url': f'https://elwig.at/organic/external/bioqs/attachments/{urllib.parse.quote(srow[0])}',
             })
         if not first:
             print(',', flush=True)