Add OWASP AI resource importers

[Bornunique911]

Summary

This PR adds AI-related OWASP resource importer support for issue #471.

It introduces the parser/data/test layer for:

• OWASP AI Security Verification Standard (AISVS)
• OWASP Top 10 for LLM and Gen AI Apps 2025

This is the first upstream PR in the stacked #471 review series.

What changed

• added parser support for AISVS
• added parser support for OWASP Top 10 for LLM and Gen AI Apps 2025
• added bundled source data for these resources
• added parser test coverage for the new OWASP AI resources

Why this is split out

The full #471 work is too large to review effectively as one PR.

This PR isolates one OWASP resource family so the parser/data model can be reviewed independently before the later Kubernetes, cheat sheet, backend analysis, and frontend changes.

Validation

./venv/bin/python -m pytest application/tests/owasp_aisvs_parser_test.py application/tests/owasp_llm_top10_2025_parser_test.py -q