v3.0.10

Arnis Meld Fork 3.0.10

The stadium model no longer lands on football fields. The 3D pipeline
kept dropping a generated stadium GLB onto ordinary soccer grounds
(leisure=stadium fires down to 10k m2, which is most of them); the
archetype is deleted outright. Pitch lines, goals and court markings are
a different system and are untouched.

Upstream wave 2 is incorporated, selectively. Three commits ported: the
scanline fill now samples the integer lattice (centre sampling made the
two fill paths disagree by up to a row - a visible seam wherever a
polygon crossed the size threshold between them), the scan is work-capped
by rows x edges (rows alone let a pathological coastline demand ~400
billion edge tests), and a ring the fill refused for size no longer
leaves a lone outline - which also sharpens this fork's own 3.0.6 guard,
which was swallowing the edges of thin slivers and open ways.

The other three upstream commits were verified rather than assumed: two
are fixes this fork shipped first (crops lit under baked lighting, 1.8.2
wave, superset block list; the oversized-polygon scanline itself, 3.0.6,
same design), and an 801-line block-palette reorder with an empty commit
message was rejected - it walks straight through the ID space this
fork's custom blocks occupy.

364 tests. The compare badge reads 0 behind; every upstream commit is
triaged to a terminal decision in the port ledger before the merge that
clears it.