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>

frontend/docker-entrypoint.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+set -e
+
+# Ensure node_modules are in sync with package.json
+# This handles the case where the anonymous volume has stale dependencies
+if [ ! -d "node_modules" ] || [ "package.json" -nt "node_modules" ]; then
+    echo "Installing npm packages..."
+    npm install --network-timeout=600000 --retry 3
+fi
+
+# Execute the CMD
+exec "$@"