feat: Restucturing Part7 Handler and Context rework #4532

Job	Run time
check no_std	27s
check	24s
clippy	35s
check no_std kzg-rs	31s
check serde	25s
check std	26s
docs	58s
test stable --no-default-features	1m 37s
fmt	12s
TyposCheck	6s
test stable	1m 47s
test stable --all-features	1m 46s
test beta --no-default-features	38s
test beta	39s
test beta --all-features	1m 4s
test nightly --no-default-features	34s
test nightly	36s
test nightly --all-features	59s
	13m 44s

Provide feedback