playground: Fix sign message bug

[chakra-guy]

Explanation

This PR fixes the bug in the playground apps around solana message signing

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've highlighted breaking changes using the "BREAKING" category above as appropriate

---

Note

Normalize invoke parameters by chain (keep objects for Solana methods, arrays for EVM) and update ScopeCards to use the new signature.

• Helpers:
  • Update normalizeMethodParams(method, params, scope) in playground/multichain-react(-native)/src/helpers/MethodInvocationHelpers.ts to:
    • Keep params as objects for Solana methods/scopes.
    • Ensure arrays for EVM methods.
    • Retain special handling for eth_signTypedData_v3/v4.
• Components:
  • Update ScopeCard.tsx (React and React Native) to pass scope to normalizeMethodParams and align logs.
  • Minor JSX/className formatting cleanup in React ScopeCard.
• Solana:
  • Import ordering cleanup in solana-method-signatures.ts (React).

^{Written by Cursor Bugbot for commit db710fe. This will update automatically on new commits. Configure here.}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.99%. Comparing base (07036cd) to head (db710fe).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1372   +/-   ##
=======================================
  Coverage   74.99%   74.99%           
=======================================
  Files         184      184           
  Lines        4519     4519           
  Branches     1108     1108           
=======================================
  Hits         3389     3389           
  Misses       1130     1130           

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud