* Implement Solana head detection strategies with metrics tracking and testing
* Add benchmark tests for Solana BlockSubscribe and SlotSubscribe strategies
* Implement metrics logging and strategy configuration for Solana head detection
* Add metrics logging and comparison for SLOT_SUBSCRIBE strategy
* Refactor SolanaChainSpecificTest: Consolidate tests for slotSubscribe strategy, remove BlockSubscribe tests, and enhance caching logic. Delete SolanaStrategyBenchmark for performance comparison.
* add synthetic parentHash, improve tests
* Fix linter
* Optimize Solana getLatestBlock to use single getEpochInfo call
Replace two separate RPC calls (getSlot + getBlockHeight) with a single getEpochInfo call that returns both absoluteSlot and blockHeight
* Enhance height estimation logic in SolanaChainSpecific: Implement optimistic height estimation and improve error handling for RPC failures. Update tests to validate new behavior.
* Refactor height verification in SolanaChainSpecific: Replace getBlockHeight with getEpochInfo for improved efficiency and accuracy in height estimation. Update logic to handle actual slot and height retrieval.
cd57300751