feat: different scaling gas constants based on forked network

[zeapoz]

What 💻

• Introduces a new enum ForkNetwork encapsulating network local values.

Why ✋

Currently, the scaling gas estimation parameters are hardcoded here and here. However, these should actually be dependant on the network we fork from. These values can not yet be fetched from a publicly available source and as such, this PR introduces a temporary measure for hardcoding different gas estimation constants for each valid network source.

Evidence 📷

1. Running the test node with cargo run --release fork <NETWORK>.
2. Sending the following request:

curl -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"zks_estimateFee","params":[{"from":"0x40609141Db628BeEE3BfAB8034Fc2D8278D0Cc78", "to": "0xBC989fDe9e54cAd2aB4392Af6dF60f04873A033A", "data":"0x06fdde03"}],"id":1}' http://localhost:8011

3. Observing the logged values (note: tracing::trace! statements changed to println! for better clarity) results in:

mainnet

sepolia-testnet

[MexicanAce]

LGTM