Initial commit: SmoothSchedule multi-tenant scheduling platform

This commit includes:
- Django backend with multi-tenancy (django-tenants)
- React + TypeScript frontend with Vite
- Platform administration API with role-based access control
- Authentication system with token-based auth
- Quick login dev tools for testing different user roles
- CORS and CSRF configuration for local development
- Docker development environment setup

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

core/apps.py

@@ -0,0 +1,18 @@
+"""
+Smooth Schedule Core App Configuration
+"""
+from django.apps import AppConfig
+
+
+class CoreConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'core'
+    verbose_name = 'Smooth Schedule Core'
+    
+    def ready(self):
+        """
+        Import signals and perform app initialization.
+        """
+        # Import signals here when needed
+        # from . import signals
+        pass