Get Etherfi Effective Balances

Get all effective weETH balances for a specific block number for a given number of addresses.

Here is the flow of weETH:
1. Users deposit weETH into one of several bridges (ARB, ETH)
2. This weETH is minted to a single contract on the Derive chain
3. A socket bridge hook deposits this weETH into a Derive Vault which mints shares
4. Those shares are bridged back to the source chain in the form of weETH-C

To calculate the effective weETH balances that users have in our vaults, we need to:
1. total_deposits: the total amount of weETH deposited by users across all chains
2. user_shares: count how many weETH-C shares are held across chains / keep bridges in mind
3. Filter out users that have not registered with the orderbook
4. effective_balance: user_shares / total_shares * total_deposits

Lastly, must take into account pooling that occurs in Swell L2.

If no addresses are provided, returns all effective balances for all addresses.
NOTE: only users who have registered via derive.xyz are elligible to be tracked.
NOTE: This route cannot be tested locally