fix(extract): Polygonlöcher im Chunk-Payload erhalten, split_by_chunk_all abdecken

Ruling 34 (Important, Fix-Runde 1 zu Aufgabe 6): _ring() verwarf jedes Loch
eines Polygons (nur poly.exterior wurde in Weltkoordinaten -> three.js
uebertragen). Vor dem Chunk-Zuschnitt war das meist harmlos, weil das
groesste Loch die Bucht selbst ist und beim Zuschneiden ohnehin herausfaellt
- danach blieb es aber ein echter Datenverlust: ein von Strassen umschlossener
Block wurde zu Asphalt, ein Innenhof zu Gebaeudemasse, ein Teich im Park zu
Wiese. Gemessen an echten Daten: 120 Strassen-Chunk-Stuecke (449.876 m2),
127 Stadtflaechen-Stuecke (208.657 m2 wobei 1 weiteres Park-Stueck), 30
Land-Stuecke (11.402 m2) und mindestens 75 Gebaeude-Stuecke trugen ein
verworfenes Loch.

_ring() wird _rings(): liefert [poly.exterior, *poly.interiors] in derselben
Transformation, Aussenring zuerst. Payload-Schema aendert sich entsprechend
fuer land/surfaces/roads/buildings von einem flachen Ring zu einer Liste von
Ringen; centerlines und palms sind unveraendert (keine Polygone). Task 7s
extrudePolygons() ruft ShapeUtils.triangulateShape(ring, []) bereits mit
einem (bisher leeren) Loecher-Array - die Aenderung passt jetzt durchgehend,
bevor Aufgabe 7 gebaut wird. write_debug_png() zeichnet weiterhin nur den
Aussenring (poly[0]), Loecher werden im Debug-Bild nicht dargestellt.

Neuer Test test_polygon_holes_survive_into_the_payload prueft das direkt an
einem Block mit Loch; die Koordinaten wurden vor dem Festschreiben gegen die
tatsaechliche chunk_payload()-Transformation nachgerechnet (uv run python,
nicht nur von Hand). test_coordinates_are_chunk_local_three_js musste auf
das neue [0]-Aussenring-Indexing angepasst werden.

Ruling 35 (Important): split_by_chunk_all() - die Variante, die run.py
tatsaechlich benutzt, nicht das getestete split_by_chunk() - hatte einen
MultiPolygon-Zweig ohne jede Testabdeckung. Neuer Test mit einer Klammerform
(Steg ausserhalb der Chunk-Zelle, zwei Zinken je einmal hineinreichend)
trifft genau diesen Zweig gezielt; er war schon vor der Aenderung gruen -
bestaetigt als Abdeckungsluecke, nicht als Bug.

uv run pytest -v: 36 passed (34 zuvor + 2 neu).

Pipeline (run.py) am gecachten Mosaik neu durchlaufen: weiterhin 144
Chunk-Dateien, public/data/vice-a/ jetzt 2,7 MB (zuvor 2,5 MB; +0,2 MB fuer
die erhaltenen Loecher). Insgesamt tragen jetzt 415 Chunk-Stuecke mindestens
ein Loch: Land 30/213, Stadtflaechen 127/1145 (+1 Park-Flaeche), Strassen
120/953, Gebaeude 137/2859 (80 global-eindeutige Gebaeude vor
Chunk-Duplizierung). Land/Strassen/Stadtflaechen treffen die oben genannten
Referenzwerte exakt; bei Gebaeuden weicht die Stueckzahl vom Review-Befund
(75) ab. Stichprobe der vier flaechenmaessig groessten Gebaeude-Loecher
(Debug-PNGs chunk_8_0, chunk_2_10, chunk_5_11 sowie ein viertes) zeigt
plausible echte Ring-Bauwerke (ein stadionartiger Rundbau, eine
Wendel-Parkrampe) statt offensichtlicher Fehlklassifikation - die
verbleibende Abweichung duerfte an der bereits im Task-6-Bericht
offengelegten Restunsicherheit der Gebaeude-Ueberlappungsrekonstruktion
liegen (263 vs. 258 spekulative Gebaeude), nicht an dieser Aenderung; im
Fix-Bericht dokumentiert.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

public/data/vice-a/chunk_2_6.json

@@ -1 +1 @@
-{"chunk":[2,6],"origin":[-500,-1000],"land":[[[0.0,250.0],[0.0,0.0],[250.0,0.0],[250.0,250.0],[0.0,250.0]]],"surfaces":[{"poly":[[98.5,237.0],[100.0,235.5],[110.0,238.5],[113.22,250.0],[98.66,250.0],[98.5,237.0]],"kind":"urban"},{"poly":[[176.5,247.0],[176.5,234.0],[170.0,231.5],[164.5,226.0],[162.0,219.5],[109.0,220.5],[108.0,231.5],[98.5,229.0],[98.5,220.0],[250.0,217.71],[250.0,231.85],[211.5,224.0],[206.61,250.0],[176.29,250.0],[176.5,247.0]],"kind":"urban"},{"poly":[[191.0,202.5],[191.5,194.0],[199.0,194.5],[250.0,185.42],[250.0,201.68],[191.0,202.5]],"kind":"urban"},{"poly":[[223.0,38.5],[214.0,40.5],[211.0,45.5],[156.0,53.5],[150.5,57.0],[137.5,129.0],[115.5,203.0],[98.5,203.0],[107.5,172.0],[127.5,133.0],[138.5,102.0],[151.0,3.5],[162.0,1.5],[250.0,1.88],[250.0,34.9],[223.0,38.5]],"kind":"urban"},{"poly":[[51.5,34.0],[56.0,8.5],[132.5,8.0],[130.0,31.5],[51.5,34.0]],"kind":"urban"},{"poly":[[1.5,70.0],[8.5,57.0],[12.5,42.0],[14.5,28.0],[13.5,10.0],[48.0,8.5],[44.5,41.0],[38.5,64.0],[21.5,94.0],[2.0,113.5],[1.5,70.0]],"kind":"urban"},{"poly":[[45.5,61.0],[52.0,40.5],[130.5,38.0],[128.0,58.5],[45.5,61.0]],"kind":"urban"},{"poly":[[93.5,149.0],[100.5,141.0],[106.5,122.0],[109.5,101.0],[93.0,99.5],[94.5,90.0],[91.0,83.5],[68.0,76.5],[64.0,76.5],[63.0,79.5],[36.0,82.5],[43.0,68.5],[127.5,66.0],[121.5,103.0],[113.5,126.0],[103.5,143.0],[95.0,150.5],[93.5,149.0]],"kind":"urban"},{"poly":[[14.5,111.0],[28.0,95.5],[27.5,102.0],[29.5,103.0],[29.0,111.5],[14.5,111.0]],"kind":"urban"},{"poly":[[1.5,126.0],[1.5,123.0],[14.0,111.5],[10.5,129.0],[14.0,132.5],[1.5,126.0]],"kind":"urban"},{"poly":[[72.5,232.0],[71.0,209.5],[24.0,212.5],[1.5,226.0],[1.5,198.0],[29.0,199.5],[34.5,192.0],[35.5,185.0],[32.5,184.0],[32.5,181.0],[36.5,178.0],[38.5,171.0],[37.0,166.5],[9.0,160.5],[5.5,166.0],[2.0,187.5],[1.5,164.0],[4.5,152.0],[8.0,148.5],[51.0,167.5],[64.5,179.0],[73.5,191.0],[77.5,203.0],[76.0,232.5],[72.5,232.0]],"kind":"urban"},{"poly":[[52.0,248.5],[77.0,237.5],[77.0,250.0],[50.63,250.0],[52.0,248.5]],"kind":"urban"}],"roads":[{"poly":[[10.5,107.0],[25.5,89.0],[39.5,63.0],[45.5,38.0],[45.5,32.0],[49.5,13.0],[48.5,10.0],[46.0,8.5],[17.0,8.5],[14.5,10.0],[13.5,12.0],[12.5,39.0],[8.5,55.0],[0.0,72.85],[0.0,1.5],[3.5,7.0],[5.5,7.0],[9.0,1.5],[13.0,0.0],[49.75,0.0],[51.0,0.5],[52.17,0.0],[135.0,0.0],[140.0,2.5],[141.07,0.0],[170.3,0.0],[164.0,1.5],[153.0,2.5],[149.5,5.0],[148.5,7.0],[149.5,15.0],[148.5,16.0],[148.5,24.0],[146.5,34.0],[146.5,44.0],[145.5,45.0],[145.5,53.0],[143.5,61.0],[144.5,66.0],[142.5,69.0],[143.5,71.0],[141.5,75.0],[141.5,81.0],[140.5,82.0],[142.5,87.0],[139.5,90.0],[138.5,100.0],[128.5,129.0],[116.5,153.0],[114.5,155.0],[106.5,173.0],[98.5,200.0],[99.5,202.0],[102.0,203.5],[113.0,203.5],[117.0,200.5],[120.0,203.5],[250.0,202.59],[250.0,217.07],[164.0,217.5],[163.0,218.5],[162.0,217.5],[140.0,217.5],[136.0,220.5],[131.0,221.5],[128.0,218.5],[102.0,218.5],[100.0,219.5],[98.5,222.0],[98.5,231.0],[97.5,232.0],[101.5,236.0],[98.5,239.0],[98.5,250.0],[78.5,250.0],[78.5,240.0],[75.5,237.0],[79.5,233.0],[78.5,232.0],[78.5,204.0],[75.5,194.0],[67.5,182.0],[56.0,170.5],[50.0,166.5],[13.0,148.5],[8.0,148.5],[4.5,151.0],[2.5,157.0],[1.5,162.0],[2.5,165.0],[0.5,168.0],[1.5,170.0],[0.0,172.25],[0.0,116.15],[10.5,107.0]],"bridge":false},{"poly":[[9.0,1.5],[5.5,7.0],[3.5,7.0],[0.0,1.5],[0.0,0.0],[13.0,0.0],[9.0,1.5]],"bridge":false},{"poly":[[140.0,2.5],[135.0,0.0],[141.07,0.0],[140.0,2.5]],"bridge":false},{"poly":[[51.0,0.5],[49.75,0.0],[52.17,0.0],[51.0,0.5]],"bridge":false},{"poly":[[95.5,211.0],[91.5,214.0],[89.5,221.0],[88.5,204.0],[84.5,190.0],[75.5,176.0],[63.5,164.0],[74.0,166.5],[86.0,165.5],[102.0,158.5],[93.5,181.0],[88.5,200.0],[91.5,208.0],[95.5,211.0]],"bridge":false},{"poly":[[67.0,86.5],[72.0,86.5],[74.5,88.0],[74.0,89.5],[73.0,88.5],[70.5,90.0],[70.0,93.5],[65.5,92.0],[67.0,86.5]],"bridge":false},{"poly":[[4.0,225.5],[5.5,227.0],[1.5,229.0],[0.5,231.0],[1.5,233.0],[6.0,236.5],[9.0,234.5],[11.5,238.0],[8.0,238.5],[7.0,240.5],[4.0,238.5],[1.5,240.0],[0.0,243.0],[0.0,228.09],[4.0,225.5]],"bridge":false},{"poly":[[0.5,247.0],[3.5,249.0],[2.83,250.0],[0.0,250.0],[0.0,245.5],[0.5,247.0]],"bridge":false}],"centerlines":[[[-14.0,93.0],[-9.0,71.0],[3.0,40.0],[5.0,23.0],[4.0,-2.0]],[[132.0,211.0],[117.0,211.0]],[[138.0,35.0],[141.0,17.0],[141.0,3.0],[138.0,-4.0]],[[133.0,86.0],[135.0,64.0]],[[27.0,94.0],[35.0,75.0],[43.0,64.0]],[[27.0,94.0],[-7.0,128.0]],[[138.0,36.0],[135.0,63.0]],[[49.0,36.0],[52.0,-2.0]],[[133.0,211.0],[257.0,209.0]],[[89.0,235.0],[89.0,211.0]],[[7.0,140.0],[22.0,144.0]],[[61.0,162.0],[86.0,171.0]],[[88.0,291.0],[89.0,237.0]],[[0.0,140.0],[-3.0,147.0],[-17.0,224.0]],[[49.0,37.0],[44.0,52.0],[44.0,63.0]],[[50.0,37.0],[137.0,35.0]],[[37.0,151.0],[60.0,161.0]],[[134.0,63.0],[45.0,64.0]],[[89.0,210.0],[87.0,172.0]],[[88.0,171.0],[102.0,159.0],[114.0,142.0],[126.0,115.0],[132.0,88.0]],[[90.0,211.0],[115.0,211.0]],[[99.0,112.0],[74.0,112.0]]],"buildings":[{"poly":[[276.0,1.5],[165.0,1.5],[164.5,1Line truncated
+{"chunk":[2,6],"origin":[-500,-1000],"land":[[[[0.0,250.0],[0.0,0.0],[250.0,0.0],[250.0,250.0],[0.0,250.0]]]],"surfaces":[{"poly":[[[98.5,237.0],[100.0,235.5],[110.0,238.5],[113.22,250.0],[98.66,250.0],[98.5,237.0]]],"kind":"urban"},{"poly":[[[176.5,247.0],[176.5,234.0],[170.0,231.5],[164.5,226.0],[162.0,219.5],[109.0,220.5],[108.0,231.5],[98.5,229.0],[98.5,220.0],[250.0,217.71],[250.0,231.85],[211.5,224.0],[206.61,250.0],[176.29,250.0],[176.5,247.0]]],"kind":"urban"},{"poly":[[[191.0,202.5],[191.5,194.0],[199.0,194.5],[250.0,185.42],[250.0,201.68],[191.0,202.5]]],"kind":"urban"},{"poly":[[[223.0,38.5],[214.0,40.5],[211.0,45.5],[156.0,53.5],[150.5,57.0],[137.5,129.0],[115.5,203.0],[98.5,203.0],[107.5,172.0],[127.5,133.0],[138.5,102.0],[151.0,3.5],[162.0,1.5],[250.0,1.88],[250.0,34.9],[223.0,38.5]]],"kind":"urban"},{"poly":[[[51.5,34.0],[56.0,8.5],[132.5,8.0],[130.0,31.5],[51.5,34.0]]],"kind":"urban"},{"poly":[[[1.5,70.0],[8.5,57.0],[12.5,42.0],[14.5,28.0],[13.5,10.0],[48.0,8.5],[44.5,41.0],[38.5,64.0],[21.5,94.0],[2.0,113.5],[1.5,70.0]]],"kind":"urban"},{"poly":[[[45.5,61.0],[52.0,40.5],[130.5,38.0],[128.0,58.5],[45.5,61.0]]],"kind":"urban"},{"poly":[[[93.5,149.0],[100.5,141.0],[106.5,122.0],[109.5,101.0],[93.0,99.5],[94.5,90.0],[91.0,83.5],[68.0,76.5],[64.0,76.5],[63.0,79.5],[36.0,82.5],[43.0,68.5],[127.5,66.0],[121.5,103.0],[113.5,126.0],[103.5,143.0],[95.0,150.5],[93.5,149.0]]],"kind":"urban"},{"poly":[[[14.5,111.0],[28.0,95.5],[27.5,102.0],[29.5,103.0],[29.0,111.5],[14.5,111.0]]],"kind":"urban"},{"poly":[[[1.5,126.0],[1.5,123.0],[14.0,111.5],[10.5,129.0],[14.0,132.5],[1.5,126.0]]],"kind":"urban"},{"poly":[[[72.5,232.0],[71.0,209.5],[24.0,212.5],[1.5,226.0],[1.5,198.0],[29.0,199.5],[34.5,192.0],[35.5,185.0],[32.5,184.0],[32.5,181.0],[36.5,178.0],[38.5,171.0],[37.0,166.5],[9.0,160.5],[5.5,166.0],[2.0,187.5],[1.5,164.0],[4.5,152.0],[8.0,148.5],[51.0,167.5],[64.5,179.0],[73.5,191.0],[77.5,203.0],[76.0,232.5],[72.5,232.0]]],"kind":"urban"},{"poly":[[[52.0,248.5],[77.0,237.5],[77.0,250.0],[50.63,250.0],[52.0,248.5]]],"kind":"urban"}],"roads":[{"poly":[[[10.5,107.0],[25.5,89.0],[39.5,63.0],[45.5,38.0],[45.5,32.0],[49.5,13.0],[48.5,10.0],[46.0,8.5],[17.0,8.5],[14.5,10.0],[13.5,12.0],[12.5,39.0],[8.5,55.0],[0.0,72.85],[0.0,1.5],[3.5,7.0],[5.5,7.0],[9.0,1.5],[13.0,0.0],[49.75,0.0],[51.0,0.5],[52.17,0.0],[135.0,0.0],[140.0,2.5],[141.07,0.0],[170.3,0.0],[164.0,1.5],[153.0,2.5],[149.5,5.0],[148.5,7.0],[149.5,15.0],[148.5,16.0],[148.5,24.0],[146.5,34.0],[146.5,44.0],[145.5,45.0],[145.5,53.0],[143.5,61.0],[144.5,66.0],[142.5,69.0],[143.5,71.0],[141.5,75.0],[141.5,81.0],[140.5,82.0],[142.5,87.0],[139.5,90.0],[138.5,100.0],[128.5,129.0],[116.5,153.0],[114.5,155.0],[106.5,173.0],[98.5,200.0],[99.5,202.0],[102.0,203.5],[113.0,203.5],[117.0,200.5],[120.0,203.5],[250.0,202.59],[250.0,217.07],[164.0,217.5],[163.0,218.5],[162.0,217.5],[140.0,217.5],[136.0,220.5],[131.0,221.5],[128.0,218.5],[102.0,218.5],[100.0,219.5],[98.5,222.0],[98.5,231.0],[97.5,232.0],[101.5,236.0],[98.5,239.0],[98.5,250.0],[78.5,250.0],[78.5,240.0],[75.5,237.0],[79.5,233.0],[78.5,232.0],[78.5,204.0],[75.5,194.0],[67.5,182.0],[56.0,170.5],[50.0,166.5],[13.0,148.5],[8.0,148.5],[4.5,151.0],[2.5,157.0],[1.5,162.0],[2.5,165.0],[0.5,168.0],[1.5,170.0],[0.0,172.25],[0.0,116.15],[10.5,107.0]],[[130.5,30.0],[132.5,26.0],[133.5,11.0],[130.0,7.5],[58.0,7.5],[56.0,8.5],[54.5,11.0],[53.5,23.0],[51.5,30.0],[52.5,33.0],[55.0,34.5],[128.0,31.5],[130.5,30.0]],[[129.5,55.0],[130.5,41.0],[127.0,37.5],[109.0,37.5],[108.0,38.5],[85.0,38.5],[84.0,39.5],[60.0,39.5],[59.0,40.5],[53.0,40.5],[50.5,42.0],[46.5,54.0],[46.5,58.0],[48.0,60.5],[50.0,61.5],[125.0,59.5],[129.5,55.0]],[[96.0,150.5],[105.5,142.0],[110.5,134.0],[120.5,109.0],[122.5,101.0],[125.5,85.0],[126.5,70.0],[127.5,69.0],[126.0,65.5],[123.0,64.5],[122.0,65.5],[45.0,67.5],[41.5,70.0],[32.5,87.0],[33.5,90.0],[30.5,93.0],[31.5,96.0],[29.0,98.5],[28.0,97.5],[25.0,98.5],[11.5,114.0],[4.0,119.5],[0.5,124.0],[1.5,127.0],[5.0,129.5],[9.0,131.5],[13.0,128.5],[15.5,131.0],[14.5,132.0],[16.0,134.5],[24.0,138.5],[27.0,137.5],[31.0,141.5],[36.0,139.5],[46.0,147.5],[51.0,145.5],[52.5,147.0],[51.5,148.0],[52.5,150.0],[57.0,152.5],[62.0,153.5],[65.0,151.5],[69.0,155.5],[86.0,155.5],[96.0,150.5]],[[86.0,165.5],[74.0,166.5],[63.5,164.0],[75.5,176.0],[84.5,190.0],[88.5,204.0],[89.5,221.0],[91.5,214.0],[95.5,211.0],[91.5,208.0],[88.5,200.0],[93.5,181.0],[102.0,158.5],[86.0,165.5]]],"bridge":false},{"poly":[[[9.0,1.5],[5.5,7.0],[3.5,7.0],[0.0,1.5],[0.0,0.0],[13.0,0.0],[9.0,1.5]]],"bridge":false},{"poly":[[[140.0,2.5],[135.0,0.0],[141.07,0.0],[140.0,2.5]]],"bridge":false},{"poly":[[[51.0,0.5],[49.75,0.0],[52.17,0.0],[51.0,0.5]]],"bridge":false},{"poly":[[[95.5,211.0],[91.5,214.0],[89.5,221.0],[88.5,204.0],[84.5,190.0],[75.5,176.0],[63.5,164.0],[74.0,166.5],[86.0,165.5],[102.0,158.5],[93.5,181.0],[88.5,200.0],[91.5,208.0],[95.5,211.0]]],"bridge":false},{"poly":[[[67.0,86.5],[72.0,86.5],[74.5,88.0],[74.0,89.5],[73.0,88.5],[70.5,90.0],[70.0Line truncated