feat(apis_metainfo): print warning when APIS_BASE_URI is not set

apis_core/apis_metainfo/apps.py

@@ -1,6 +1,16 @@
 from django.apps import AppConfig
+from django.conf import settings
+import logging
+
+logger = logging.getLogger(__name__)
 
 
 class MetainfoConfig(AppConfig):
     default_auto_field = "django.db.models.AutoField"
     name = "apis_core.apis_metainfo"
+
+    def ready(self):
+        if getattr(settings, "APIS_BASE_URI", None) is None:
+            logger.warning(
+                "You should set the APIS_BASE_URI setting - we are using https://example.org as a fallback!"
+            )