refactor(core): extract historical balance bypass rules

[gzliudan]

Proposed changes

Move the historical balance bypass table and application logic out of state_processor.go into a dedicated file.

Keep the state processing flow focused without changing the bypass behavior, and add focused tests for matching and non-matching historical rules.

Types of changes

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• build: Changes that affect the build system or external dependencies
• ci: Changes to CI configuration files and scripts
• chore: Changes that don't change source code or tests
• docs: Documentation only changes
• feat: A new feature
• fix: A bug fix
• perf: A code change that improves performance
• refactor: A code change that neither fixes a bug nor adds a feature
• revert: Revert something
• style: Changes that do not affect the meaning of the code
• test: Adding missing tests or correcting existing tests

Impacted Components

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• Consensus
• Account
• Network
• Geth
• Smart Contract
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Checklist

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• This PR has sufficient test coverage (unit/integration test) OR I have provided reason in the PR description for not having test coverage
• Tested on a private network from the genesis block and monitored the chain operating correctly for multiple epochs.
• Provide an end-to-end test plan in the PR description on how to manually test it on the devnet/testnet.
• Tested the backwards compatibility.
• Tested with XDC nodes running this version co-exist with those running the previous version.
• Relevant documentation has been updated as part of this PR
• N/A

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[Copilot]

Pull request overview

This PR refactors the “historical balance bypass” logic out of core/state_processor.go into a dedicated module, keeping the transaction application flow cleaner while preserving the bypass behavior, and adds targeted unit tests around bypass matching vs skipping.

Changes:

• Replace the inline historical-bypass table/logic in ApplyTransactionWithEVM with a call to applyHistoricalBalanceBypass.
• Introduce core/state_processor_historical_bypass.go containing the bypass rules and application helper.
• Add unit tests covering apply/skip scenarios for the historical bypass.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
core/state_processor.go	Removes the large inline bypass block and calls the extracted helper during tx application.
core/state_processor_historical_bypass.go	New dedicated bypass rules table and applyHistoricalBalanceBypass implementation.
core/state_processor_historical_bypass_test.go	New tests validating bypass application and expected skip behavior.

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