fix: preserve spend signatures in getCompressionSignaturesForAccount

- Add in_accounts and batch_nullify_context hashes to kept_account_hashes
  in filter_by_known_trees, so spend transaction entries are not filtered out
- Remove filter in v2 parser that excluded input accounts also present in
  outputs, making v2 consistent with v1 behavior

Author: ananas-block

src/ingester/parser/state_update.rs

@@ -185,6 +185,17 @@ impl StateUpdate {
         // Track which account hashes we're keeping for filtering account_transactions later
         let mut kept_account_hashes = HashSet::new();
 
+        // Add input (spent) account hashes - these don't have tree info but should be kept
+        // for account_transactions tracking
+        kept_account_hashes.extend(self.in_accounts.iter().cloned());
+
+        // Add batch nullify context hashes (v2 batch input accounts)
+        kept_account_hashes.extend(
+            self.batch_nullify_context
+                .iter()
+                .map(|ctx| Hash::from(ctx.account_hash)),
+        );
+
         // Filter out_accounts
         let out_accounts: Vec<_> = self
             .out_accounts

src/ingester/parser/tx_event_parser_v2.rs

@@ -9,7 +9,6 @@ use crate::ingester::parser::state_update::{AccountTransaction, StateUpdate};
 use crate::ingester::parser::tx_event_parser::create_state_update_v1;
 
 use super::state_update::AddressQueueUpdate;
-use crate::common::typedefs::hash::Hash;
 use light_event::parse::event_from_light_transaction;
 use light_compressed_account::Pubkey as LightPubkey;
 use solana_pubkey::Pubkey;
@@ -139,20 +138,10 @@ where
             .extend(event.batch_input_accounts.clone());
 
         // Create account_transactions for v2 batch input accounts
-        // but only for accounts that are not being created in this same transaction
-        let output_account_hashes: std::collections::HashSet<_> = state_update_event
-            .out_accounts
-            .iter()
-            .map(|acc| acc.account.hash.clone())
-            .collect();
-
         state_update_event.account_transactions.extend(
             event
                 .batch_input_accounts
                 .iter()
-                .filter(|batch_account| {
-                    !output_account_hashes.contains(&Hash::from(batch_account.account_hash))
-                })
                 .map(|batch_account| AccountTransaction {
                     hash: batch_account.account_hash.into(),
                     signature: tx,