Add local visualization action

[Yuki-Imajuku]

No description provided.

[Copilot]

Pull Request Overview

Adds support for local visualization in ALE-Bench by extending the tool wrappers and Session API, updating utilities for image serialization, and expanding tests and documentation.

• Introduce local_visualization in tool_wrappers and wire it through Session, including argument validation and elapsed‐time logging.
• Provide new base64↔PIL utilities in utils.py to support image serialization in schemas.
• Update tests to cover setup paths and session action logs for visualization, and refine type hints across the codebase.
• Refresh documentation (README, CONTRIBUTING) and tighten CI type checking.

Reviewed Changes

Copilot reviewed 25 out of 25 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/ale_bench/tool_wrappers/local_visualization.py	Added setup_local_visualization_paths, case_iter_func, and local_visualization implementation
src/ale_bench/session.py	Integrated local_visualization method in Session, updated action‐log entries to include elapsed_time and added argument checks
src/ale_bench/utils.py	Added base64_to_pil and pil_to_base64 helpers and refactored pil_to_base64jpeg
tests/tool_wrappers/test_local_visualization.py	New parametrized tests for path setup of local visualization files
tests/test_session.py	Expanded session tests to assert local_visualization action‐log entries and validate new argument checks
README.md	Documented the new local_visualization API and streamlined development instructions
pyproject.toml	Enforced stricter import grouping and updated linting config
.github/workflows/check.yml	Upgraded mypy invocation to --strict

Comments suppressed due to low confidence (2)

src/ale_bench/utils.py:218

• The functions base64_to_pil and pil_to_base64 reference base64 and io but these modules are not imported. Add import base64 and import io at the top of the file.

def base64_to_pil(base64_str: str) -> Image.Image:

src/ale_bench/utils.py:232

• The type annotation uses Literal but Literal is not imported. Add from typing import Literal at the top of the file.

def pil_to_base64(image: Image.Image, image_format: Literal["JPEG", "PNG"] = "PNG") -> str: