Create user-friendly attestation flow diagram for NEAR AI Inference API

Description

Create a clear, user-friendly diagram that explains the attestation flow for the NEAR AI Inference API based on this repo: https://github.com/nearai/private-ml-sdk

Scope:
- Read the repo docs/code to understand the attestation steps and actors.
- Produce a diagram suitable for docs/marketing: easy to understand, minimal jargon, but technically accurate.
- Include key actors (client, NEAR AI Inference API/service, TEE/attestor/verifier as applicable) and artifacts (attestation report/quote, verification, keys/tokens).
- Show sequence + trust boundaries (e.g., cloud vs enclave vs client).

Deliverables:
- 1 primary diagram in SVG or PNG (high-res)
- 1 editable source (Figma link preferred; alternatives: draw.io, Excalidraw, Mermaid)
- Short legend/notes (1-2 paragraphs) explaining how to read it

Acceptance criteria:
- Diagram is accurate per repo, readable at typical doc width, and highlights why attestation matters (trust assumptions).