fix(errors): store cli_path as attribute on CLINotFoundError#989

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anthropics:mainanthropics/claude-agent-sdk-python:mainfrom

SHAI-Akshay-Tripathi:store-cli-path-on-cli-not-found-errorSHAI-Akshay-Tripathi/claude-agent-sdk-python:store-cli-path-on-cli-not-found-errorCopy head branch name to clipboard