message: feat: log transaction adding failures in pool
diff: @@ -409,7 +409,10 @@ where
  // We can sort it by some rules
  for tx in new_txs {
  - let _ = self.add_to_pool(tx);
  + let tx_hash = tx.hash();
  + if let Err(error) = self.add_to_pool(tx) {
  + info!(target: "txs_pool", "Failed to add proposed tx {:} to pool, reason: {:?}", tx_hash, error);
  + }
  }
  }
  