feat: add stateful validations

[dafnamatsry]

This change is 

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 110 lines in your changes are missing coverage. Please review.

Project coverage is 44.71%. Comparing base (d545119) to head (4021f7f).

Files	Patch %	Lines
crates/gateway/src/utils.rs	0.00%	70 Missing ⚠️
...ates/gateway/src/stateful_transaction_validator.rs	0.00%	39 Missing ⚠️
crates/gateway/src/errors.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #74       +/-   ##
===========================================
- Coverage   61.27%   44.71%   -16.57%     
===========================================
  Files          11       12        +1     
  Lines         297      407      +110     
  Branches      297      407      +110     
===========================================
  Hits          182      182               
- Misses        110      220      +110     
  Partials        5        5               

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