Secure GCP Deployment & UI Upgrade

I need the project in the public repo ­https://github.com/Vs7sai/sixn running reliably on my Google Cloud Platform account under strict security best practices. That means private VPC networking, least-privilege IAM roles, encrypted secrets (Secret Manager or equivalent), HTTPS everywhere, and hardening steps such as firewall rules and audit logging turned on from day one.

Once it is live, I want the frontend refreshed with modern design elements—specifically animated transitions that feel smooth on both desktop and mobile, plus a fully responsive layout so the screens adapt gracefully across breakpoints. Please keep the existing branding intact while introducing these touches.

Finally, I’d like two extension tracks completed:

• Integration with other services: hook the app to at least one external API that makes sense for the codebase (we can decide together which), wiring authentication and error handling properly.
• Performance enhancements: profile the current code and deployment, eliminate obvious bottlenecks, and document the gains.

Deliverables
1. Production-ready GCP deployment (Terraform, Cloud Run/Kubernetes, or another managed option) with a step-by-step setup guide.
2. Updated UI committed to the repo with animated transitions and responsive behaviour demonstrated.
3. Implemented integration and performance improvements, each covered by concise technical notes and measurable results.
4. A short hand-off session or document so I can reproduce and maintain the stack.

If you have experience hardening GCP workloads and polishing frontends with modern JS/CSS frameworks, let’s discuss timelines and approach.