feat: batch matching stateOverrides in call

[haydenshively]

When client.batch.multicall is enabled, call() skips batching entirely for any call that includes a stateOverride. However, the downstream multicall action already supports forwarding stateOverride to eth_call, so there's no fundamental reason calls sharing the same stateOverride can't be batched together.

This PR removes the blanket !rpcStateOverride guard and instead groups batched calls by their serialized stateOverride value. Calls with the same override batch together; calls with different overrides (or no override) go to separate batches. The stateOverride is then forwarded as the third param in the batched eth_call.

Changes:

• Removed the !rpcStateOverride check that prevented all state-overridden calls from batching
• Forward rpcStateOverride through scheduleMulticall and include it in the batched eth_call params
• Include JSON.stringify(rpcStateOverride) in the batch scheduler ID so calls are grouped by identical overrides
• Added test covering same-override batching and different-override separation

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🦋 Changeset detected

Latest commit: 1271756

The changes in this PR will be included in the next version bump.

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[haydenshively]

@jxom is there anything I can do to help get this merged?

[haydenshively]

bump, how can I help?

[spennyp]

+1 would be great for this to be supported