Refactor timeout builder to accept Option<Duration>

[Rahamath-unnisa]

This PR refactors the timeout builder logic to accept Option instead of requiring a concrete Duration. This change improves flexibility for client configuration, allowing consumers to opt out of setting a timeout when desired.
🔧 Changes Made

• Updated ElectrumConfig to use Option for timeout
• Adjusted Client::from_config to handle None gracefully
• Updated examples and tests to reflect the new API
  Motivation
  This change aligns with Issue Timeout should be set with a std::time::Duration #151 and improves ergonomics for downstream users who may not always need a timeout. It also simplifies integration with wallet builders and other client abstractions.
  Linked Issue
  Closes Timeout should be set with a std::time::Duration #151

[oleonardolima]

Please make sure you've read the contributing guidelines at https://github.com/bitcoindevkit/bdk_wallet/blob/master/CONTRIBUTING.md, and make sure that your code is compiling and the tests pass before opening the PR.

[Rahamath-unnisa]

I’ve followed the contributing guidelines and confirmed that the code compiles successfully with all tests passing.

…

On Mon, 27 Oct 2025 at 19:42, Leonardo L. ***@***.***> wrote: *oleonardolima* left a comment (bitcoindevkit/rust-electrum-client#178) <#178 (comment)> Please make sure you've read the contributing guidelines at https://github.com/bitcoindevkit/bdk_wallet/blob/master/CONTRIBUTING.md, and make sure that your code is compiling and the tests pass before opening the PR. — Reply to this email directly, view it on GitHub <#178 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BRHYZRRMUGVDI2CBG7AFVKT3ZYR3BAVCNFSM6AAAAACI6D2K22VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTINJRGQ4DANJUG4> . You are receiving this because you authored the thread.Message ID: ***@***.***>