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Fixes #151
This PR updates the ElectrumClientBuilder (and related builder logic) to use std::time::Duration for timeout configuration, instead of a u8 value representing seconds.
Notes to the reviewers
Replaced timeout: Option with timeout: Option in the builder.
Adjusted all relevant function calls and tests accordingly.
Confirmed that all existing integration tests pass.
Checklists:
I've signed all my commits
I followed the contribution guidelines
I ran cargo fmt, cargo clippy, and cargo test before pushing
I’m linking the issue being fixed by this PR
Supersedes #178
This replaces the previous PR which had CI and branch issues.