Cardano Updates

* mithril-cardano-node-internal-database from `0.1.11` to `0.1.12`
* mithril-aggregator-client from `0.1.10` to `0.1.11`
* mithril-aggregator-discovery from `0.1.4` to `0.1.5`
* mithril-merkle-tree from `0.1.1` to `0.1.2`
* mithril-aggregator from `0.8.48` to `0.8.49`
* mithril-client from `0.14.6` to `0.14.7`
* mithril-common from `0.6.69` to `0.6.70`

And adapt Cardano related test extensions.

alfred-margaret 2.1.1.0 (2026-04-24) uses bare `foldl'` which is only in
Prelude from base-4.20 (GHC 9.10) onwards, so it fails to compile under
GHC 9.6 and 9.8. It is pulled in transitively by hoogle via
hackage-revdeps, breaking the 42 shell-for / simple-shell test jobs.

After all sub-rule transitions (`SUBLEDGERS`, `CERTS`, `GOVS`, `UTXOW`),
apply batch-wide direct deposits to the final CertState via
`applyDirectDeposits` and `allDirectDeposits`.

`Ledger.lagda.md`:
+  Update `LEDGER-V` output: compute `certStateFinal` by applying
   `allDirectDeposits` to `certState₂`, use `certStateFinal` in the
   output `LedgerState` and in `rmOrphanDRepVotes`;
+  `LEDGER-I` unchanged (invalid batches don't apply deposits);
+  Document direct deposit application ordering and phantom asset
   prevention rationale.

`Ledger/Properties/Computational.lagda.md`:
+  Update `computeProof` valid branch to compute `certStateFinal` and use
   it in the output `LedgerState`.
+  Clean up redundant code.

After all sub-rule transitions (`SUBLEDGERS`, `CERTS`, `GOVS`, `UTXOW`),
apply batch-wide direct deposits to the final CertState via
`applyDirectDeposits` and `allDirectDeposits`.

`Ledger.lagda.md`:
+  Update `LEDGER-V` output: compute `certStateFinal` by applying
   `allDirectDeposits` to `certState₂`, use `certStateFinal` in the
   output `LedgerState` and in `rmOrphanDRepVotes`;
+  `LEDGER-I` unchanged (invalid batches don't apply deposits);
+  Document direct deposit application ordering and phantom asset
   prevention rationale.

`Ledger/Properties/Computational.lagda.md`:
+  Update `computeProof` valid branch to compute `certStateFinal` and use
   it in the output `LedgerState`.

CIP-159 changes the transaction balancing rules and introduces Phase-1
balance interval validation.  This commit updates the UTxO transition
system accordingly.

`Utxo.lagda.md`:
+  Add accountBalances : Rewards field to UTxOEnv and SubUTxOEnv for
   pre-batch account balance lookups;
+  Add HasAccountBalances type class and instances;
+  Update producedTx to include direct deposit amounts on the produced
   side of the preservation-of-value equation;
+  Add direct deposit registration premise to UTXO and SUBUTXO
   (`dom DirectDepositsOf ⊆ dom AccountBalancesOf`);
+  Add balance interval validation premise to UTXO and SUBUTXO
   (∀ (c,interval) ∈ BalanceIntervalsOf, InBalanceInterval using
   pre-batch account balances).

`Utxo/Properties/Computational.lagda.md`:
+  Update Computational-UTXO for new premise tuple arity (19+h → 21+h)

`Ledger.lagda.md`:
+  Add accountBalances field to SubLedgerEnv;
+  Populate accountBalances in SUBLEDGER-V, SUBLEDGER-I, LEDGER-V,
   LEDGER-I using RewardsOf certState₀ (pre-batch balances).