Cardano Updates

Eliminate the legacy 'TxOut CtxTx era' and 'TxOut CtxUTxO era' type
signatures and pattern matches from cardano-cli's non-Byron code paths.
Byron-era code uses a separate pre-Shelley tx output model and is left
alone — 'Exp.TxOut' is not applicable there.

  * 'friendlyTxOut' in 'Compatible/Json/Friendly.hs' now takes
    'Exp.TxOut (LedgerEra era)' and reads address, value, datum, and
    reference script directly via the ledger lenses ('addrTxOutL',
    'valueTxOutL', 'datumTxOutL', 'referenceScriptTxOutL'). The two
    call sites ('basePairs', 'friendlyReturnCollateral') wrap the
    body's ledger outputs with 'Exp.TxOut' instead of going through
    'fromShelleyTxOut → fromCtxUTxOTxOut'. The dead 'friendlyTxOutValue'
    helper is dropped.

  * 'filteredUTxOsToText' in 'EraBased/Query/Run.hs' now takes a
    'ShelleyBasedEra era' witness, converts the api 'UTxO era' to the
    ledger UTxO once via 'toLedgerUTxO', then renders each entry from
    '(TxIn, Exp.TxOut (ShelleyLedgerEra era))' using ledger lenses.
    The pre-Babbage datum slot has no uniform ledger representation,
    so the renderer emits an empty placeholder there and shows the
    babbage+ ledger datum elsewhere — debug-style output, no golden
    tests touched.

  * Removed 'validateTxReturnCollateral' from
    'Type/Error/TxValidationError.hs'. It was exported but never
    called outside its own module; the actual return-collateral
    construction in 'EraBased/Transaction/Run' builds
    'Exp.TxReturnCollateral' directly.

Remaining uses of legacy ctx-typed tx outputs in cardano-cli are
confined to Byron-only modules.

Adapt to cardano-api PR #1209, which removes the legacy 'TxOut CtxTx era'
from the Compatible and Experimental APIs:

  * 'createCompatibleTx' now takes '[Exp.TxOut (ShelleyLedgerEra era)]'
    plus a new 'Map L.DataHash (L.Data ...)' argument carrying any
    supplemental datum bodies. The legacy 'TxOut CtxTx era' bundled
    supplemental datums inside outputs; 'Exp.TxOut' only carries the
    datum hash, so callers thread the full datum bodies in explicitly.
  * The bridge helpers 'fromLegacyTxOut', 'legacyDatumToDatum',
    'supplementalDatumFromLegacy', 'toLedgerDatum', and the
    'DatumDecodingError' type are deleted from 'Cardano.Api.Experimental.Tx'.

Migration:

  * 'mkTxOut' and 'toTxOutInAnyEra' now return
    '(Exp.TxOut (ShelleyLedgerEra era), Map DataHash (L.Data ...))'
    directly, building the legacy 'TxOut CtxTx era' internally only as
    a stepping stone for 'toShelleyTxOutAny'.
  * 'createCompatibleTx' call site in 'Compatible/Transaction/Run.hs'
    folds the per-output supplemental datums via 'Map.unions' and
    passes them as the new argument.
  * 'toTxOutInEra' and 'toTxOutInShelleyBasedEra' in
    'EraBased/Transaction/Run.hs' delegate directly to 'mkTxOut' (the
    deleted 'fromLegacyTxOut' is gone).
  * 'TxCmdDatumDecodingError' is removed since the underlying
    'Exp.DatumDecodingError' is gone and the new conversion is total.

Temporary 'cabal.project' additions (to be removed once #1209 is
merged and the next cardano-api is published to CHaP):

  * 'source-repository-package' pointing at the PR branch so CI can
    build against the unpublished API.
  * Per-package '-Wwarn=deprecations -Wwarn=unused-imports' for
    cardano-cli. The PR branch is several commits ahead of
    cardano-api-11.1.0.0 and surfaces unrelated TxBody/TxBodyContent
    deprecations (cardano-api PR #1200) plus a redundant
    'Cardano.Ledger.Core' import in 'Cardano.CLI.Read' that became
    visible after upstream re-exports widened. Both are separate
    cleanups out of scope for this PR.

Migrates Cardano.CLI.Compatible.Json.Friendly off the old-API
Tx / TxBody / TxBodyContent onto Exp.SignedTx / Exp.UnsignedTx, with
the public renderer functions (friendlyTx, friendlyTxBody,
friendlyTxImpl, friendlyTxBodyImpl) now taking Exp.Era era instead of
ShelleyBasedEra era. This is the last consumer of old-API
TxBodyContent in cardano-cli.

Behaviour change: 'cardano-cli debug transaction view' and
'cardano-cli transaction view' now only accept Conway and Dijkstra
tx / tx-body files. Pre-Conway files (Shelley, Allegra, Mary, Alonzo,
Babbage) fail with a DeprecatedEra error. The corresponding pre-Conway
golden tests have been removed.

Migrates Cardano.CLI.Compatible.Json.Friendly off the old-API
Tx / TxBody / TxBodyContent onto Exp.SignedTx / Exp.UnsignedTx, with
the public renderer functions (friendlyTx, friendlyTxBody,
friendlyTxImpl, friendlyTxBodyImpl) now taking Exp.Era era instead of
ShelleyBasedEra era. This is the last consumer of old-API
TxBodyContent in cardano-cli.

Behaviour change: 'cardano-cli debug transaction view' and
'cardano-cli transaction view' now only accept Conway and Dijkstra
tx / tx-body files. Pre-Conway files (Shelley, Allegra, Mary, Alonzo,
Babbage) fail with a DeprecatedEra error. The corresponding pre-Conway
golden tests have been removed.

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.