Preprocess Typed Data JSON w/ >uint32 fields

[0xFirekeeper]

PR-Codex overview

This PR introduces a method to preprocess typed data JSON, specifically to stringify large integers. It updates the EcosystemWallet to use this method and adds tests to ensure the functionality works correctly.

Detailed summary

• Added PreprocessTypedDataJson method in Utils to stringify large integers in JSON.
• Updated EcosystemWallet to use processedJson instead of raw json when creating the request content.
• Added unit tests for PreprocessTypedDataJson covering various scenarios, including large numbers and nested structures.

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 91.89189% with 3 lines in your changes missing coverage. Please review.

Project coverage is 78.15%. Comparing base (1fef151) to head (fe9a000).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
Thirdweb/Thirdweb.Utils/Utils.cs	91.89%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #100      +/-   ##
==========================================
+ Coverage   77.92%   78.15%   +0.23%     
==========================================
  Files          28       28              
  Lines        4375     4412      +37     
  Branches      611      618       +7     
==========================================
+ Hits         3409     3448      +39     
  Misses        800      800              
+ Partials      166      164       -2     

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