Cardano Updates

feat: improve Plutus data type constructor ergonomics

* fmt: rewrap test imports / call chains to satisfy `cargo fmt --check`
  (CI Lints job was failing on the previously hand-formatted blocks).
* test: pin the wire shape of `GetPoolDistr2` (tag 36) and
  `GetDRepsDelegations` (tag 39) explicitly, so an off-by-one tag in
  encode/decode can no longer slip past the suite by virtue of using
  the same wrong constant on both sides.
* api: add the four post-V_16 query helpers that mirror the existing
  `block_query_*!` macro pattern: `get_ledger_peer_snapshot(kind)`,
  `get_pool_distr_v2(maybe_pools)`, `get_stake_distribution_v2()`, and
  `get_dreps_delegations(set)`. Without these wrappers callers hitting
  a v23 node still had to construct the new `BlockQuery` variants by
  hand. Legacy helpers (`get_big_ledger_snapshot`, `get_pool_distr`,
  `get_stake_distribution`) are kept untouched for back-compat with
  pre-v15/v21 peers.

Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>

Catches the Node-to-Client handshake up to NodeToClientV_23 (the cardano-node
10.7.x release line targeted for the van Rossem hard fork) and aligns the
LocalStateQuery and LocalTxSubmission codecs with the matching upstream
additions.

* handshake/n2c: add PROTOCOL_V17..V23 constants, extend v1_and_above and
  v10_and_above so newer cardano-node peers negotiate above V_16.
* localstate BlockQuery: add GetPoolDistr2 (v21), GetStakeDistribution2 (v21),
  GetDRepsDelegations (v23), and a new GetLedgerPeerSnapshot(kind) variant
  that encodes the v15+ two-element form of tag 34 (legacy
  GetBigLedgerPeerSnapshot is preserved for older peers and disambiguated by
  array length on decode). Replace the unreachable!() catch-all with a
  proper decode error.
* localtxsubmission ConwayLedgerFailure: replace the U8(u8) backward-compat
  placeholder at tag 8 with the real WithdrawalsMissingAccounts variant the
  ledger 10.7 line introduced, and add IncompleteWithdrawals at tag 9.
* pallas-hardano haskell_display: cover the two new ConwayLedgerFailure
  variants in the Haskell-style formatter.

LedgerPeerSnapshot stays typed as AnyCbor, so the v22 SRV-record additions
and v23 encoding change pass through opaquely. pallas-primitives and
pallas-traverse need no changes for this hard fork (intra-Conway, no new
transaction shape, no PlutusV4 — that lands in Dijkstra).

Wire shapes are derived from the upstream Haskell encoders
(encodeShelleyQuery, ConwayLedgerPredFailure EncCBOR). Roundtrip and
wire-shape unit tests assert codec self-consistency; byte-for-byte
agreement with a live 10.7 node should be confirmed at integration time.

Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>

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

Skip the replay worker once ls.closed is set and have Close wait on a
new replayWG before the database is torn down, so a SIGTERM during
catch-up can no longer race fork-resolution DB reads against shutdown
phase 3. Fixes #2107.

Signed-off-by: SAY-5 <[email protected]>

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