Cardano Updates

Signed-off-by: Tripura Repalle <[email protected]>

Signed-off-by: Yurii Shynbuiev <[email protected]>

Signed-off-by: Yurii Shynbuiev <[email protected]>

# Conflicts:
#	modules/midnight_state/src/state.rs

Signed-off-by: Yurii Shynbuiev <[email protected]>

Remove 5 modules (Gen, BlockParameters, Shelley, Babbage, Byron) that
are now provided by cardano-ledger-read. Build.hs stays as wallet-specific
DSL, importing mkBlockEra and BlockParameters from the library.

Also bumps cardano-ledger-read s-r-p to include Gen modules and removes
unused build-depends (cardano-crypto-praos, cardano-protocol-tpraos,
deepseq, ouroboros-consensus, ouroboros-consensus-cardano,
ouroboros-consensus-protocol, ouroboros-network-api).

Closes #5205

* Create .gitattributes

following advice here: to override stupid, incorrect Linguist determination that our 99.9% Markdown code is >50% Python.

* Delete .gitattributes

* add .gitattributes to only count Markdown files

Signed-off-by: Chris Gianelloni <[email protected]>

toLedgerDatum was incorrectly converting TxOutSupplementalDatum to
L.Datum (inline representation). Per the Alonzo ledger spec,
supplemental datums should produce L.DatumHash on the output, with
the full datum data going into TxDats separately.

Also updates fromLegacyTxOut to return supplemental datum data
alongside the TxOut, so callers can populate txSupplementalDatums.
Adds supplementalDatumFromLegacy helper for this purpose.

getDatums previously extracted datums from transaction outputs using
L.dataTxOutL, which could not distinguish between inline datums and
supplemental datums, causing both to be added to TxDats.

Per the Alonzo ledger spec, supplemental datums are only those whose
hashes correspond to output DatumHash fields. Inline datums should
never appear in TxDats.

This commit introduces a txSupplementalDatums field on TxBodyContent
so supplemental datums can be provided explicitly, and refactors
getDatums to use this field instead of extracting from outputs.

Document the architectural decision to replace the legacy
TxBodyContent build era type with a simplified TxBodyContent era
that uses ledger types directly, eliminates the build phantom
parameter, and integrates with the ADR-010 witness API.