SYSTEM_ARCHITECTURE

Category: 01. AI / ML Hackathons
Section: Phase 2: Technical Blueprint

Act as a senior AI software architect.
Using the following PRD and TRD, design a realistic hackathon architecture for an AI/ML project.

PRD: [PASTE PRD]
TRD: [PASTE TRD]

Provide:
1. Recommended tech stack (Frontend, Backend, AI frameworks)
2. Frontend architecture
3. Backend architecture
4. AI inference architecture (How the request reaches the model and returns)
5. Database choice (SQL/NoSQL/Vector)
6. Authentication approach
7. External APIs/services
8. Complete request/data flow diagram (Text-based)
9. Folder structure
10. Major components
11. Security considerations
12. Deployment architecture
13. Simplifications that can be made for a hackathon

Explain every technical decision in beginner-friendly language. 
Do not introduce unnecessary technologies. Prefer a simple architecture that can be explained easily to judges.

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