first approach to pty

AGENTS.md

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+## Agent Instructions
+
+### Build, Lint, and Test
+
+- Build: `cargo build`
+- Lint: `cargo clippy`
+- Test: `cargo test`
+- Run a single test: `cargo test --test <test_name>`
+
+### Code Style
+
+- **Formatting**: Use `cargo fmt` to format the code.
+- **Imports**: Group imports by standard library, external crates, and project modules.
+- **Types**: Use explicit types.
+- **Naming Conventions**: Follow Rust's naming conventions (e.g., `snake_case` for variables and functions, `PascalCase` for types).
+- **Error Handling**: Use `Result` and `?` for error propagation. Use `panic!` only for unrecoverable errors.
+- **Logging**: Use the `log` crate for logging.