feat: provide instance name through dandischema instance config

instead of a hardcoded value

Author: candleindark

dandiapi/api/models/version.py

@@ -217,9 +217,11 @@ def _populate_metadata(self):
             ),
             'manifestLocation': manifest_location(self),
             'name': self.name,
-            'identifier': f'DANDI:{self.dandiset.identifier}',
+            'identifier': f'{settings.DANDI_SCHEMA_INSTANCE_CONFIG.instance_name}:'
+            f'{self.dandiset.identifier}',
             'version': self.version,
-            'id': f'DANDI:{self.dandiset.identifier}/{self.version}',
+            'id': f'{settings.DANDI_SCHEMA_INSTANCE_CONFIG.instance_name}:'
+            f'{self.dandiset.identifier}/{self.version}',
             'repository': settings.DANDI_WEB_APP_URL,
             'url': (
                 f'{settings.DANDI_WEB_APP_URL}/dandiset/{self.dandiset.identifier}/{self.version}'