Apply userop timeout based on client options

[0xFirekeeper]

PR-Codex overview

This PR introduces a cancellation mechanism for fetching the user operation receipt in the SmartWallet class, improving timeout handling and responsiveness.

Detailed summary

• Replaced the initial while loop for fetching txHash with a using statement for CancellationTokenSource.
• Added a try-catch block to handle OperationCanceledException.
• Threw an exception with a message if the operation times out, instead of proceeding silently.

✨ Ask PR-Codex anything about this PR by commenting with /codex {your question}

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 75.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 72.70%. Comparing base (bee1518) to head (5179dd9).

Files with missing lines	Patch %	Lines
...irdweb/Thirdweb.Wallets/SmartWallet/SmartWallet.cs	75.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #128      +/-   ##
==========================================
- Coverage   72.82%   72.70%   -0.12%     
==========================================
  Files          34       34              
  Lines        5232     5239       +7     
  Branches      691      693       +2     
==========================================
- Hits         3810     3809       -1     
- Misses       1248     1254       +6     
- Partials      174      176       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.