Add GDPR compliance assessment skill

[dakshverma23]

• Complete 9-phase workflow for GDPR Article 3-50 assessment
• Article 30 RoPA parser, validator, and report generator scripts
• Framework mappings: NIST CSF 2.0, MITRE ATT&CK
• Compliance scorecard template with weighted scoring
• 2026-current references (ICO, EDPB, Data Use & Access Act)

[rajpratham1]

Thanks for contributing this GDPR compliance assessment skill. The overall structure is well organized and covers important GDPR topics, including Article 30 records, validation, reporting, and compliance templates.

Before merging, I think a few improvements are needed:

• The report generation script contains a very basic Markdown-to-HTML conversion that relies on string replacements. This is likely to generate invalid HTML for many documents. Consider using a proper Markdown library instead.
• The parser currently relies on simple keyword matching to extract Article 30 information. Since the generated output may be incomplete or inaccurate, the limitations should be documented more prominently and test cases should be included.
• The repository currently does not include automated tests for the parser, validator, or report generator. Adding unit tests would make future maintenance much easier.
• Some documentation contains regulatory statistics and compliance guidance. Please verify that these values are current and reference authoritative sources where appropriate.
• Because this PR introduces more than 2,000 lines of content, adding usage examples or sample input/output files would help reviewers validate the workflow end-to-end.

Overall this is a valuable addition, but I'd like to see these quality and maintainability improvements before approving.