txnprovider/txpool: extract best's wait loop into a defer-locked helper

`trace_call`: trace_call initializes the trace field as a non-null empty array even when trace was not requested, instead of returning null for every unrequested trace type

High sustained MDBX COW writes at mainnet tip (110-140 MiB/block)

cl/sentinel/communication/ssz_snappy: DecodeAndRead's TODO points at a closed, unrelated issue

execution/cache, execution/commitment: epoch reuse after Clear can alias a later unwind and serve dead-fork state

Garbage numbers in the "Downloading Execution History" log

glamsterdam-devnet-7: EIP-8037 (State Creation Gas Cost Increase)

rpc: prune-mode endpoint availability is largely untested (checkPruneHistory vs checkPruneBlocks)

v3.5.0 parallel execution (Block-STM) serves incorrect receipt (wrong status + gasUsed) for mainnet tx — distinct from #22106/#22110

execution/cache: replace warmup drain-on-unwind with getter-level epoch capture