eth: add fillTransaction, drop raw field

[bomanaps]

#512

[s1na]

Want 7702 tx too

[s1na]

We might need to update these to support the more recent cell proofs

[bomanaps]

for the post-PeerDAS sidecar shape would you prefer we mirror the engine API pattern with a separate Transaction4844UnsignedWithSidecarV2 cell proofs variant added alongside the existing one in FilledTransaction.oneOf, replace the current proofs field outright since the spec ships through-fork, or keep proofs as bytes[] with a fork conditional description?

[s1na]

Having looked at this again: I think we can just add a comment that for post-PeerDAS the proofs field is expected to contain the cell proofs if provided and its length == 128 * len(blobs).

[s1na]

Example could have been kept btw

[s1na]

I generated an example which has also the tx object with a valid signature:

    examples:
      - name: eth_signTransaction example
        params:
          - name: Transaction
            value:
              from: '0x9d8a62f656a8d1615c1294fd71e9cfb3e4855a4f'
              nonce: '0x9'
              to: '0xd46e8dd67c5d32be8058bb8eb970870f07244567'
              gas: '0x76c0'
              gasPrice: '0x9184e72a000'
              value: '0x9184e72a'
              input: '0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675'
        result:
          name: Transaction result
          value:
            raw: '0xf892098609184e72a0008276c094d46e8dd67c5d32be8058bb8eb970870f07244567849184e72aa9d46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f07244567526a0839ebaab7774ffdae60d418fc8b4192d2cb861ac31acbb5fef2602
  7d1b8f10aea015396a78493395691c10fccc33ec13f2eeb96a3ba2b4ca1652c91bb2b348d12b'
            tx:
              type: '0x0'
              chainId: '0x1'
              nonce: '0x9'
              to: '0xd46e8dd67c5d32be8058bb8eb970870f07244567'
              gas: '0x76c0'
              gasPrice: '0x9184e72a000'
              value: '0x9184e72a'
              input: '0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675'
              v: '0x26'
              r: '0x839ebaab7774ffdae60d418fc8b4192d2cb861ac31acbb5fef26027d1b8f10ae'
              s: '0x15396a78493395691c10fccc33ec13f2eeb96a3ba2b4ca1652c91bb2b348d12b'

[bomanaps]

Addressed all comments, added the example and a note on proofs for post-PeerDAS

[s1na]

LGTM