fix: transaction duplication within one block

[Nicholas090]

Problem

getHeaderInfo returns the block's timestamp. When building the same transaction within a single block , the same timestamp of the same block leads to duplicate transaction errors because the transaction ID/hash ends up identical.

Changes

• timestamp is explicitly overridden with Date.now() to ensure uniqueness when needed.

Impact

• Reduces occurrences of duplicate transaction errors when creating transactions in quick succession.

[srbaeza-ai]

• src/lib/TransactionBuilder/helper.ts

[Stan202310]

We provide a method called getCurrentRefBlockParams in the trx module from v6.1.0, which allows you to obtain the block header data. You can also modify this data to prevent transaction duplication. To use the data, pass it to the blockHeader property in the last parameter when creating a transaction.