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/Dockerfile

@@ -0,0 +1,16 @@
+FROM node:22-alpine
+
+WORKDIR /app
+
+COPY package.json package-lock.json* ./
+RUN npm install --network-timeout=600000 --retry 3
+
+COPY . .
+
+# Startup script that ensures node_modules are in sync with package.json
+COPY docker-entrypoint.sh /docker-entrypoint.sh
+RUN chmod +x /docker-entrypoint.sh
+
+EXPOSE 5173
+
+ENTRYPOINT ["/docker-entrypoint.sh"]