Update oracle documentation for PDBs

[JLeonL]

Summary

Update documentation for PDBs

Type of change

• New page
• New section / subcategory
• Edit to an existing page
• Image(s) only
• Repository/tooling change (workflows, config, template, ...)

Details

• Section affected: Plugins / Integrations / Discovery / Extras / Other
• Languages:
  • English (docs/en/)
  • Spanish (docs/es/)
• Sidebar impact: none / new top-level section (check hooks.py pin if so)
• Files changed:
  • docs/en/discovery/oracle.md — Updated PDBs documentation
  • docs/es/discovery/oracle.md — Updated PDBs documentation

Verification

• Validator tests pass: python3 -m unittest discover -s tests -p 'test_validate_docs.py'
• Blocking quality gates pass: python3 scripts/validate_docs.py --fail-on blocking
• Strict build completed successfully (check one command):
  • .venv/bin/mkdocs build --strict
  • UID=$(id -u) GID=$(id -g) docker compose run --rm docs build --strict
• Images referenced with correct relative path and per-language fallback
• Optional: preview checked at http://localhost:8000 (preview is not validation)