feat: add aarna afi 802v2 ERC20 token metadata and logo

[s-pcode]

website : https://www.aarna.ai/ docs : https://docs.aarna.ai/ deployed contract addresses : https://docs.aarna.ai/resources/addresses

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[!NOTE] Add ERC20 token metadata and SVG logo for aarna afi 802v2 on Ethereum (0xB68E430c56Ed9E548E864a68A60F9d41f993b32c).

• Assets — Ethereum (eip155:1)
  • New ERC20 token: aarna afi 802v2 (afi 802v2)
    • Metadata added at metadata/eip155:1/erc20:0xB68E430c56Ed9E548E864a68A60F9d41f993b32c.json with decimals: 18, erc20: true, and logo reference.
    • SVG logo added at icons/eip155:1/erc20:0xB68E430c56Ed9E548E864a68A60F9d41f993b32c.svg.

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