eth/tracers: add tests for debug_standardTraceBadBlockToFile RPC method

[winor30]

This PR adds test coverage for debug_standardTraceBadBlockToFile method as part of addressing issue #30833.

The new test TestStandardTraceBadBlockToFile covers:

• Basic bad block tracing with transactions
• Error handling for non-existent blocks
• Transaction filtering by hash
• Bad blocks without transactions
• Custom tracer configuration

Also adds helper functions createTestTransactions and setupBadBlock for creating test scenarios.

Fixes #30833