New map engine#3

Draft

jgauchia wants to merge 16 commits intomainfrom

devel_flatgeobuf

Commits on Jan 1, 2026

feat(tile-generator): Add FlatGeobuf converter with R-Tree spatial indexing
jgauchia
committed

Commits on Jan 2, 2026

fix: Simplify zoom levels files
jgauchia
committed

Commits on Jan 3, 2026

refact(generator): Switch from unified files to z/x/y tile structure
jgauchia
committed

Commits on Jan 4, 2026

docs: Update README.md
jgauchia
committed

Commits on Jan 5, 2026

feat(generator): Add node simplification based on zoom level (Douglas-Peucker, 1px tolerance)
jgauchia
committed

Commits on Jan 8, 2026

Commits on Jan 9, 2026

Commits on Jan 10, 2026

fix(viewer): add round joins for thick lines to smooth curves
jgauchia
committed