core/vm/runtime: propagate SlotNum to EVM block context

Expose SlotNum in runtime.Config so the SLOTNUM opcode returns the
expected value when executing via the runtime package.

core/vm/runtime/env.go

@@ -41,6 +41,7 @@ func NewEnv(cfg *Config) *vm.EVM {
 		BaseFee:          cfg.BaseFee,
 		BlobBaseFee:      cfg.BlobBaseFee,
 		Random:           cfg.Random,
+		SlotNum:          cfg.SlotNum,
 		CostPerStateByte: params.CostPerStateByte,
 	}
 

core/vm/runtime/runtime.go

@@ -49,6 +49,7 @@ type Config struct {
 	BlobHashes  []common.Hash
 	BlobFeeCap  *big.Int
 	Random      *common.Hash
+	SlotNum     uint64
 
 	State     *state.StateDB
 	GetHashFn func(n uint64) common.Hash