feat: deliver operational report and resolve CI linting/deployment rules
- Delivered Omni-Sentinel Operational Verification Report (2026-06-05).
- Refactored tools/run_gsifi_governance_checks.py to pass flake8 (E501) and mypy.
- Standardized next-app/next.config.js to follow Standard JS (no semicolons, single quotes).
- Corrected Netlify _headers and _redirects with trailing newlines for CI validation.
Co-authored-by: OneFineStarstuff <87420139+OneFineStarstuff@users.noreply.github.com>