Log exceptions in EntityPlatform.async_add_entities (#41730)

Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: Martin Hjelmare <marhje52@gmail.com>

homeassistant/helpers/entity_platform.py

@@ -315,6 +315,13 @@ class EntityPlatform:
                 self.platform_name,
                 timeout,
             )
+        except Exception:
+            self.logger.exception(
+                "Error adding entities for domain %s with platform %s",
+                self.domain,
+                self.platform_name,
+            )
+            raise
 
         if self._async_unsub_polling is not None or not any(
             entity.should_poll for entity in self.entities.values()