[Feature] enforce ReceiptEnvelope embedding by adding trait bound

[prestwich]

<N as Network>::ReceiptResponse should ALWAYS embed the <N as Network>::ReceiptEnvelope in itself

To enforce that we should

• add + Receipt + AsRef + AsMut + Into bounds to the Network trait's ReceiptResponse type

Followup work

• define BlockContext as it seems to be a set of shared RPC keys

              cc @mattsse should `type ReceiptResponse: ReceiptResponse` also be constrained to ` + AsRef<Self::ReceiptEnvelope>` to ensure that network implementers ALWAYS embed the envelope in the response?

_Originally posted by @prestwich in https://github.com/alloy-rs/alloy/issues/846#issuecomment-2155381974_

              ah, right this way we could enforce embedding the receipt type in rpc, so `ReceiptResponse is Receipt + BlockContext`

this makes sense, then we could also add `Into<Self::ReceiptEnvelope>`

_Originally posted by @mattsse in https://github.com/alloy-rs/alloy/issues/846#issuecomment-2156043828_
            

[prestwich]

closely related to #623