Clean up [workspace.lints.clippy] - Unwrap/Error Handling lints

Rules: `unnecessary_unwrap, needless_question_mark, unnecessary_literal_unwrap, bind_instead_of_map, expect_fun_call, io_other_error, unnecessary_fallible_conversions`

Start at the workspace.lints.clippy configuration and inspect the code affected by the seven listed unwrap and error-handling lints. Run the project's Clippy checks, address applicable warnings across the workspace, and confirm the checks pass without introducing unrelated changes.

Written by the indexing model from the issue text.