Cardano Updates

friendlyTx and friendlyTxBody now take ShelleyBasedEra era and accept
Exp.SignedTx era / Exp.UnsignedTx (ShelleyLedgerEra era). They are no
longer parameterised by Exp.Era era (which is Conway-only) — the
renderer works for Shelley through Conway tx and tx-body files,
unblocking transaction view for pre-Conway tx files.

friendlyTxBodyImpl reads every field directly from the ledger TxBody
via lenses, so the old API's TxBodyContent constructor and
getTxBodyContent are no longer used in this module.

The body composes a list of pairs from per-feature helpers
(validityRangePair, mintPairFor, collateralInputsPairFor,
requiredSignersPairFor, referenceInputsPairFor, totalCollateralPairFor,
returnCollateralPairFor, alonzoScriptWitnessPairsFor,
conwayBodyPairsFor). Era-gated helpers return [Aeson.Pair] and emit []
in eras that don't have the field, so JSON keys for absent-in-this-era
fields (e.g. "mint" in Shelley, "collateral inputs" in Mary) are
omitted from the output rather than rendered as null. The eon-based
dispatchers (forShelleyBasedEraInEon, AlonzoEraOnwards,
ConwayEraOnwards, ...) are no longer used in this module.

Also adds an Alonzo YAML golden test alongside the existing JSON
golden to cover the YAML output path for that era.

Relies on cardano-api 11.1.0.0 (PR IntersectMBO/cardano-api#1199),
which widened Exp.SignedTx / Exp.UnsignedTx to all Shelley-based eras.

Now that the friendly renderer covers Shelley through Babbage, those
tx bodies' update field is no longer just noise — it carries real
governance state (a ProposedPPUpdates map keyed by genesis-key hash and
an EpochNo). Render it directly from the ledger TxBody via
`updateTxBodyL`. Conway replaced update proposals with the new
governance system, so the field is absent (not null) in Conway+.

Adds `updateProposalPairFor` and `renderUpdate` helpers; the
per-era PParamsUpdate is rendered via its ledger ToJSON instance.

Removes the deprecated `--update-proposal-file` flag from the era-based
`transaction build` and `transaction build-raw` commands by dropping the
two `pUpdateProposalFile` parser hookups and the corresponding record
fields (`mUpdateProposalFile` / `mUpdateProprosalFile`) from
`TransactionBuildCmdArgs` and `TransactionBuildRawCmdArgs`.

Update proposals are deprecated since Conway and the value was already
being discarded internally — the flag was a no-op. Conway and later
eras already excluded the flag from --help (the `Featured
ShelleyToBabbageEra` constraint), so this only affects scripts that
were silently passing the flag for show.

Compatible-mode (`compatible <era> transaction signed-transaction`)
keeps `--update-proposal-file`, since pre-Conway eras still need it.