feat: support Google Sheets datasets

[Dawn-Fighter]

Summary

• Adds support for using public Google Sheets links as CSV-backed prompt datasets.
• Converts standard Sheets browser links and published sheet links to direct CSV export URLs before loading.
• Documents how to use a Google Sheet as a custom CSV source.

Testing

• Ran python3 -m py_compile agentic_security/probe_data/data.py.
• I could not run the pytest suite in this local checkout because the environment is missing project test dependencies like pytest and runtime dependencies like colorama.

Happy to contribute this. I picked this up from #86 because Google Sheets feels like a practical way for teams to keep shared red-team prompt sets updated without exporting CSV files manually.

Closes #86

[Copilot]

Pull request overview

Adds support for using public Google Sheets URLs as CSV-backed prompt datasets by translating standard and published Sheets links into their CSV export URLs prior to fetching. Documentation is updated to describe the new capability.

Changes:

• New normalize_google_sheets_csv_url helper handling both standard (/spreadsheets/d/<id>/edit) and published (/spreadsheets/d/e/<id>/pubhtml) URLs, preserving gid from query string or fragment.
• fetch_csv_content invokes the normalizer before issuing the HTTP request.
• docs/datasets.md documents the new Google Sheets workflow with an example.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
agentic_security/probe_data/data.py	Adds Google Sheets URL normalization and wires it into the CSV fetch path.
docs/datasets.md	Documents the new Google Sheets dataset source with usage example.

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[msoedov]

Thanks for the patch! It looks like this has already been addressed in #290.

[Dawn-Fighter]

it's okay thanks for replying