Restore block_hash to Batch

It's not only helpful (to easily check where Serai's view of the external
network is) but it's necessary in case of a non-trivial chain fork to determine
which blockchain Serai considers canonical.

processor/scanner/src/lib.rs

@@ -11,9 +11,9 @@ use borsh::{BorshSerialize, BorshDeserialize};
 use serai_db::{Get, DbTxn, Db};
 
 use serai_primitives::{NetworkId, Coin, Amount};
-use serai_validator_sets_primitives::Session;
 use serai_coins_primitives::OutInstructionWithBalance;
 
+use messages::substrate::ExecutedBatch;
 use primitives::{task::*, Address, ReceivedOutput, Block, Payment};
 
 // Logic for deciding where in its lifetime a multisig is.
@@ -444,29 +444,17 @@ impl<S: ScannerFeed> Scanner<S> {
   /// `queue_burns`. Doing so will cause them to be executed multiple times.
   ///
   /// The calls to this function must be ordered with regards to `queue_burns`.
-  #[allow(clippy::too_many_arguments)]
   pub fn acknowledge_batch(
     &mut self,
     mut txn: impl DbTxn,
-    batch_id: u32,
-    publisher: Session,
-    in_instructions_hash: [u8; 32],
-    in_instruction_results: Vec<messages::substrate::InInstructionResult>,
+    batch: ExecutedBatch,
     burns: Vec<OutInstructionWithBalance>,
     key_to_activate: Option<KeyFor<S>>,
   ) {
-    log::info!("acknowledging batch {batch_id}");
+    log::info!("acknowledging batch {}", batch.id);
 
     // Queue acknowledging this block via the Substrate task
-    substrate::queue_acknowledge_batch::<S>(
-      &mut txn,
-      batch_id,
-      publisher,
-      in_instructions_hash,
-      in_instruction_results,
-      burns,
-      key_to_activate,
-    );
+    substrate::queue_acknowledge_batch::<S>(&mut txn, batch, burns, key_to_activate);
     // Commit this txn so this data is flushed
     txn.commit();
     // Then run the Substrate task