v0.7.1-beta: BGP Visibility Details

[DeepZone]

Motivation

• Provide a detailed, read-only BGP visibility check for prefixes and expected origin ASNs using RIPEstat data.
• Improve preflight decision quality by surfacing observed origins, MOAS, peer counts and specificity hints while preserving RouteForge's read-only model.
• Integrate visibility checks into Change Cases, reporting and audit trails for traceable operator workflows.

Description

• Added a new backend service BgpVisibilityService that queries RIPEstat (routing-status and bgp-state), extracts visible origins, visibility flags, peer counts, more/less-specific hints and maps results to OK/WARNING/CRITICAL/UNKNOWN with human-friendly summaries and recommendations (backend/app/services/bgp_visibility_service.py).
• Added API schema and endpoint POST /api/check/bgp-visibility with payload prefix, optional expected_origin_as and optional change_case_id, enforcing operator/admin roles, reusing existing check/report persistence and attaching checks/reports to Change Cases (404 on unknown case) (backend/app/api/routes_checks.py, backend/app/schemas.py).
• Emit audit event bgp_visibility_checked when a visibility check runs and continue to emit existing check_attached_to_change_case and report_attached_to_change_case events when applicable.
• Frontend additions: runBgpVisibilityCheck API helper, a new BGP Visibility UI page with prefix + optional expected-origin inputs, status badge, summary, origins, expected-origin-seen flag, multiple origins indicator, recommendations and expandable structured details, role-aware execution (admin/operator allowed, viewer can view but not run) (frontend/src/api.ts, frontend/src/components/BgpVisibilityForm.tsx, frontend/src/components/Layout.tsx, frontend/src/App.tsx).
• Change Case UI: added a "Run BGP Visibility Check" action that sends the selected change_case_id and reloads case reports after success (frontend/src/components/ChangeCasesView.tsx).
• Updated versioning and docs to v0.7.1-beta and added release notes/README/ROADMAP entries describing the feature and read-only / external-data caveats (RELEASE_NOTES.md, README.md, ROADMAP.md, backend/frontend version bumps).

Testing

• Backend: ran cd backend && pytest -q with all tests passing (96 passed, with warnings about deprecations only).
• Frontend: ran cd frontend && npm run build and produced a successful production build (vite build completed).

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Codex Task