* docs: turn the end-to-end audit into a delivery roadmap
* fix: deliver roadmap security and data-correctness foundation
* fix: type saved paint properties for the MapLibre 6 API
* build: account explicitly for the MapLibre 6 worker cost
* docs: record the paired foundation delivery and measured worker cost
* style: remove trailing blank line from sanitizer regression
* ci: expose exact-commit manual validation to pull requests
* Add map customization and ten-second Live Follow worldwide
* Refine follow cards and restore gesture timing in browser checks
* Keep selected follow visible and settle rendering during live updates
* Bring CartoLite visuals and recovery to the worldwide server with Netgraph
* Remove remaining country-overlay cleanup references
* Align the CI container identity with the integration checks
* Exercise worldwide grid areas in the large-topology benchmark