- Import `anyhow`, `clap::Command`, `log::debug`, and I/O traits - Fix all `Result` return types to include error type `anyhow::Error` - Replace `anyhow::anyhow!` with `anyhow!` macro calls - Fix transaction handling in `mode_save` - Add missing trait imports for I/O operations and string parsing Co-authored-by: aider (openai/andrew/openrouter/qwen/qwen3-coder) <aider@aider.chat>