fix(crypto, state): resolve panic on 32-bit OSes

[b00f]

Description

This PR addresses a panic occurring on 32-bit operating systems, including Raspberry Pi devices running 32-bit ARM OS.

The root cause of the issue lies in the varying word sizes used in the big.Int implementation across different operating systems. A word is defined as an int in the big.Int implementation. Therefore, on 32-bit operating systems, each word is 32 bits, while on 64-bit systems, it is 64 bits.

Since we use kilic/bls12-381 in the wallet, this issue affects us directly. The problem has been addressed in their repository here. However, the repository is currently unmaintained. The ultimate solution would be to replace it with the gnark-crypto implementation of BLS.

In the meantime, this patch resolves the panic.

Additionally, this PR fixes some tests in the persistent Merkle tree that were failing due to the same int size discrepancy across different operating systems.

Related Issue(s)

• Fixes raspberry pi runtime error #1565

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.27%. Comparing base (86a8ba9) to head (b90a692).
Report is 21 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1604      +/-   ##
==========================================
+ Coverage   75.07%   76.27%   +1.19%     
==========================================
  Files         234      236       +2     
  Lines       12156    18240    +6084     
==========================================
+ Hits         9126    13912    +4786     
- Misses       2582     3871    +1289     
- Partials      448      457       +9     

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