feat: added business models, implemented business signup and signin

solution/config/errors.py

@@ -0,0 +1,9 @@
+from django.core.exceptions import ValidationError
+
+
+class UniqueConstraintError(Exception):
+    def __init__(self, validation_error: ValidationError) -> None:
+        self.validation_error = validation_error
+
+
+__all__ = ["UniqueConstraintError"]

solution/config/settings.py

@@ -414,8 +414,11 @@ INSTALLED_APPS = [
     "django_guid",
     "ninja",
     # Internal apps
+    "apps.core",
+    "apps.business",
     # API v1 apps
     "api.v1.ping",
+    "api.v1.business",
 ]
 
 # GUID