Add Blockscout explorer URLs for Humanity Protocol chains

[stoneton]

What

Registers the Blockscout API endpoints for Humanity Protocol mainnet (chain 6985385) and Humanity Protocol testnet (chain 7080969) in BlockscoutClient.NETWORK_WITH_URL.

Why

The network enums and Safe deployment addresses for both chains are already present (added in v7.8), but no explorer client is registered, so contract metadata/ABI fetching is unavailable for these chains in downstream services (safe-transaction-service, safe-decoder-service).

Verification

Both explorers are Alchemy-hosted Blockscout instances; the v2 API returns verified contract ABIs:

• mainnet: https://humanity-mainnet.explorer.alchemy.com/api/v2/smart-contracts/0xD3f42c1DeBDCF75AB8204004b1CC9d7e7Ebf17Bd → UniswapV3Factory, is_verified: true
• testnet: https://humanity-testnet.explorer.alchemy.com/api/v2/smart-contracts/0x4e1DCf7AD4e460CfD30791CCC4F9c8a4f820ec67 → SafeProxyFactory, is_verified: true

🤖 Generated with Claude Code

[github-actions]

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[datadog-official]

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[falvaradorodriguez]

Thank you for your submission, we really appreciate it. Like many open-source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution. You can sign the CLA by just posting a Pull Request Comment same as the below format.

I have read the CLA Document and I hereby sign the CLA

You can retrigger this bot by commenting recheck in this Pull Request. Posted by the CLA Assistant Lite bot.

Please @stoneton, could you sign the CLA? Thanks