JSON-RPC types do not agree with Ethereum's OpenRPC spec

[0xaatif]

As an example, take debug_getBadBlocks (alphabetically, the first method in the spec)

- name: debug_getBadBlocks
  summary: Returns an array of recent bad blocks that the client has seen on the network.
  params: []
  result:
    name: Blocks
    schema:
      title: Bad block array
      type: array
      items:
        $ref: '#/components/schemas/BadBlock'

https://github.com/ethereum/execution-apis/blob/v1.0.0-beta.4/src/debug/getters.yaml#L82-L91

BadBlock looks like

BadBlock:
  title: Bad block
  type: object
  required:
    - block
    - hash
    - rlp

https://github.com/ethereum/execution-apis/blob/v1.0.0-beta.4/src/schemas/block.yaml#L140-L146

But in alloy, we return a Vec<Block>:

alloy/crates/provider/src/ext/debug.rs

Line 30 in b621af0

async fn debug_get_bad_blocks(&self) -> TransportResult<Vec<Block>>;

This is the wrong struct (there's no BadBlock struct anyway)

[EdwardJES]

Keen to take the the BadBlock task.

[mattsse]

cool @EdwardJES for this we need a new helper type and then simply swap out the return type