Change constants to immutable format.

[iteyelmp]

immutable can be initialized in the constructor, and the value will be used as part of the bytecode.

old constants

 17, // maxKvSizeBits, 131072
 39, // shardSizeBits ~ 512G
 2, // randomChecks
 4718592000, // minimumDiff 5 * 3 * 3600 * 1024 * 1024 / 12 = 4718592000 for 5 replicas that can have 1M IOs in one epoch
 7200, // cutoff = 2/3 * target internal (3 hours), 3 * 3600 * 2/3
 32, // diffAdjDivisor
 100, // treasuryShare, means 1%

 startTime, // startTime
 1500000000000000, // storageCost - 1,500,000Gwei forever per blob - https://ethresear.ch/t/ethstorage-scaling-ethereum-storage-via-l2-and-da/14223/6#incentivization-for-storing-m-physical-replicas-1
 340282366367469178095360967382638002176n, // dcfFactor, it mean 0.95 for yearly discount
 1048576, // nonceLimit 1024 * 1024 = 1M samples and finish sampling in 1.3s with IO rate 6144 MB/s: 4k * 2(random checks) / 6144 = 1.3s
 treasuryAddress, // treasury
 3145728000000000000000n, // prepaidAmount - 50% * 2^39 / 131072 * 1500000Gwei, it also means 3145 ETH for half

put blob gas use:
https://dashboard.tenderly.co/tx/sepolia/0x0364e1e03435154398f25c47db94676e8cf00c14ad1980459c60ccdb2271d182/gas-usage

replace blob gas use:
https://dashboard.tenderly.co/tx/sepolia/0x59cf5e73c2e06cc8631382f463d43f53524155eba1419ed96e3e36f63f6809ad/gas-usage