docs: add Google-style docstrings to errors.py

[Aashita101]

Summary

Added Google-style docstrings to all public classes and methods in utils/errors.py

Related Issue

Fixes #30

Type of Change

• Bug fix
• New feature
• Documentation
• Refactoring
• Test changes
• CI/Chore

Testing

• uv run ruff check passes
• uv run mypy passes
• uv run pytest passes
• Manual testing done

Description

Added Google-style docstrings to the AgentError and ConfigError classes in utils/errors.py, including their __init__, __str__, and to_dict methods. The docstrings follow the Google format with Args, Returns, and Attributes sections where applicable.

[Hell1213]

@Aashita101 Thanks for you contribution , I'm on it will review it shortly

[Hell1213]

Review: docs/errors-docstrings

Hi @Aashita101, thanks for the PR! The docstrings look clean and well-formatted.

One thing to note: PR #51 by @Rudrani-Mukherjee also addresses the same issue (#30) with docstrings for utils/errors.py. Both PRs modify the same file with different wording. You may want to coordinate with each other or the maintainers will pick one.

Minor: The file ends with a proper newline (good), unlike PR #51 which is missing one.

Tests pass, no lint issues introduced.

[Hell1213]

Docstrings look clean, follow the right Google-style format. Good addition.

[Aashita101]

Hi @Hell1213! Just wanted to note that the 2 failing checks are workflow/environment related — not caused by the docstring changes:
Gitleaks is failing due to GITHUB_TOKEN not being configured for PR scans
CI is failing due to a missing Gemini API key in the environment
The docstrings themselves pass formatting and review.
Since I'm the assigned contributor by the bot for issue #30, I'd appreciate it if this PR (#55) could be merged once the workflow configuration is sorted. Happy to help if needed!