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_0_2.json

@@ -1 +1 @@
-{"chunk":[0,2],"origin":[-1000,-2000],"land":[[[2.0,0.0],[250.0,0.0],[250.0,250.0],[2.0,250.0],[2.0,0.0]]],"surfaces":[{"poly":[[132.62,250.0],[87.56,250.0],[64.5,228.0],[104.0,227.5],[103.5,233.0],[107.0,235.5],[111.5,232.0],[116.5,222.0],[115.5,208.0],[109.0,198.5],[105.0,197.5],[103.0,201.5],[88.0,200.5],[86.5,219.0],[81.0,221.5],[78.5,219.0],[78.0,200.5],[69.5,201.0],[69.5,219.0],[65.0,220.5],[60.5,218.0],[61.0,200.5],[34.0,200.5],[30.5,196.0],[100.0,195.5],[100.0,186.5],[83.5,186.0],[84.0,180.5],[97.0,180.5],[98.5,172.0],[84.0,171.5],[83.5,167.0],[99.0,166.5],[100.5,158.0],[74.0,156.5],[73.5,186.0],[59.0,186.5],[58.5,158.0],[49.0,156.5],[47.5,186.0],[32.0,187.5],[31.5,157.0],[21.5,158.0],[21.0,186.5],[18.5,184.0],[18.5,157.0],[1.5,157.0],[1.5,45.0],[4.5,40.0],[20.0,24.5],[60.0,8.5],[96.0,1.5],[250.0,1.5],[250.0,157.02],[132.62,250.0]],"kind":"urban"},{"poly":[[243.5,233.0],[218.5,205.0],[250.0,179.98],[250.0,238.9],[243.5,233.0]],"kind":"urban"},{"poly":[[1.5,228.0],[4.0,224.5],[12.0,228.5],[22.0,225.5],[23.5,216.0],[19.5,212.0],[23.0,211.5],[29.0,227.5],[36.0,228.5],[40.0,226.5],[63.08,250.0],[1.57,250.0],[1.5,228.0]],"kind":"urban"},{"poly":[[194.0,223.5],[207.0,215.5],[237.53,250.0],[161.37,250.0],[194.0,223.5]],"kind":"urban"}],"roads":[{"poly":[[41.0,227.5],[39.0,226.5],[30.0,227.5],[27.5,222.0],[25.0,220.5],[17.0,227.5],[10.0,227.5],[5.0,224.5],[2.0,227.5],[0.0,227.1],[0.0,216.77],[5.0,214.5],[14.0,217.5],[17.0,213.5],[25.0,210.5],[33.0,213.5],[36.0,217.5],[43.0,217.5],[53.5,224.0],[50.5,217.0],[50.5,204.0],[48.5,199.0],[49.5,197.0],[35.0,198.5],[27.0,195.5],[24.5,193.0],[21.5,185.0],[21.5,169.0],[18.0,167.5],[0.0,167.01],[0.0,157.99],[18.0,157.5],[21.0,158.5],[22.0,157.5],[31.0,157.5],[31.5,185.0],[35.0,188.5],[36.0,187.5],[37.0,188.5],[44.0,188.5],[47.5,185.0],[48.0,157.5],[57.5,158.0],[57.5,184.0],[59.0,186.5],[65.0,188.5],[72.0,186.5],[73.5,184.0],[74.0,157.5],[99.5,158.0],[99.5,165.0],[96.0,166.5],[94.5,169.0],[97.5,172.0],[97.5,179.0],[96.0,180.5],[87.0,180.5],[83.5,184.0],[87.0,187.5],[96.0,187.5],[97.0,188.5],[99.0,187.5],[99.5,195.0],[98.5,197.0],[99.5,199.0],[102.0,200.5],[106.0,197.5],[111.5,202.0],[114.5,207.0],[116.5,216.0],[114.5,226.0],[111.5,231.0],[107.0,234.5],[105.0,234.5],[103.5,230.0],[100.0,227.5],[70.0,227.5],[66.5,231.0],[85.5,250.0],[64.39,250.0],[41.0,227.5]],"bridge":false},{"poly":[[136.0,247.5],[139.0,246.5],[145.0,240.5],[148.0,239.5],[152.0,234.5],[155.0,233.5],[167.0,224.5],[175.0,216.5],[183.0,211.5],[186.0,207.5],[189.0,206.5],[199.0,197.5],[202.0,196.5],[208.0,190.5],[213.0,187.5],[215.0,184.5],[222.0,180.5],[232.0,170.5],[237.0,168.5],[247.0,160.5],[249.0,157.5],[250.0,157.17],[250.0,179.59],[249.0,180.5],[241.0,185.5],[234.0,192.5],[227.0,196.5],[220.5,203.0],[219.5,206.0],[221.5,210.0],[231.5,219.0],[233.5,223.0],[247.5,236.0],[248.5,239.0],[250.0,240.5],[250.0,250.0],[238.5,250.0],[231.5,243.0],[230.5,240.0],[219.5,230.0],[208.0,216.5],[205.0,215.5],[201.0,217.5],[199.0,220.5],[190.0,227.5],[187.0,228.5],[180.0,235.5],[177.0,236.5],[175.0,239.5],[161.27,250.0],[134.12,250.0],[136.0,247.5]],"bridge":false},{"poly":[[105.0,0.5],[93.0,1.5],[87.0,3.5],[82.0,3.5],[57.0,8.5],[52.0,11.5],[14.0,26.5],[0.0,45.5],[0.0,28.38],[8.0,18.5],[51.82,0.0],[107.17,0.0],[105.0,0.5]],"bridge":false},{"poly":[[14.0,7.5],[0.0,8.95],[0.0,0.0],[32.0,0.0],[14.0,7.5]],"bridge":false},{"poly":[[5.0,203.5],[9.5,199.0],[7.5,195.0],[0.0,189.38],[0.0,179.5],[10.0,183.5],[15.5,189.0],[19.5,199.0],[16.5,207.0],[13.0,210.5],[5.0,213.5],[0.0,211.23],[0.0,200.83],[1.0,200.5],[5.0,203.5]],"bridge":false},{"poly":[[13.0,210.5],[16.5,207.0],[19.5,199.0],[15.5,189.0],[10.0,183.5],[0.0,179.5],[0.0,167.01],[18.0,167.5],[21.5,169.0],[21.5,185.0],[24.5,193.0],[27.0,195.5],[35.0,198.5],[49.5,197.0],[48.5,199.0],[50.5,204.0],[50.5,217.0],[53.5,224.0],[43.0,217.5],[36.0,217.5],[33.0,213.5],[25.0,210.5],[17.0,213.5],[14.0,217.5],[5.0,214.5],[0.0,216.77],[0.0,211.23],[5.0,213.5],[13.0,210.5]],"bridge":false},{"poly":[[32.0,0.0],[51.82,0.0],[8.0,18.5],[0.0,28.38],[0.0,8.95],[14.0,7.5],[32.0,0.0]],"bridge":false},{"poly":[[104.0,209.5],[105.5,211.0],[105.5,219.0],[97.5,217.0],[98.0,209.5],[104.0,209.5]],"bridge":false}],"centerlines":[[[53.0,162.0],[53.0,191.0]],[[83.0,170.0],[79.0,175.0],[79.0,189.0]],[[43.0,211.0],[32.0,224.0]],[[74.0,192.0],[54.0,192.0]],[[74.0,192.0],[73.0,222.0]],[[25.0,205.0],[19.0,211.0],[10.0,214.0]],[[16.0,173.0],[27.0,162.0]],[[44.0,211.0],[58.0,228.0]],[[42.0,205.0],[26.0,205.0]],[[0.0,201.0],[10.0,214.0]],[[97.0,160.0],[91.0,162.0],[84.0,169.0]],[[10.0,214.0],[0.0,226.0]],[[0.0,44.0],[6.0,20.0],[11.0,11.0],[56.0,-5.0],[114.0,-16.0]],[[16.0,175.0],[20.0,185.0],[20.0,196.0],[25.0,204.0]],[[123.0,270.0],[196.0,211.0],[210.0,206.0]],[[99.0,216.0],[89.0,224.0],[74.0,223.0]],[[287.0,147.0],[262.0,158.0],[229.0,186.0],[221.0,190.0],[213.0,198.0],[210.0,206.0]],[[59.0,229.0],[61.0,236.0],[108.0,283.0]],[[93.0,194.0],[94.0,205.0],[99.0,211.0]],[[261.0,259.0],[228.0,228.0],[210.0,206.0]],[Line truncated
+{"chunk":[0,2],"origin":[-1000,-2000],"land":[[[[2.0,0.0],[250.0,0.0],[250.0,250.0],[2.0,250.0],[2.0,0.0]]]],"surfaces":[{"poly":[[[132.62,250.0],[87.56,250.0],[64.5,228.0],[104.0,227.5],[103.5,233.0],[107.0,235.5],[111.5,232.0],[116.5,222.0],[115.5,208.0],[109.0,198.5],[105.0,197.5],[103.0,201.5],[88.0,200.5],[86.5,219.0],[81.0,221.5],[78.5,219.0],[78.0,200.5],[69.5,201.0],[69.5,219.0],[65.0,220.5],[60.5,218.0],[61.0,200.5],[34.0,200.5],[30.5,196.0],[100.0,195.5],[100.0,186.5],[83.5,186.0],[84.0,180.5],[97.0,180.5],[98.5,172.0],[84.0,171.5],[83.5,167.0],[99.0,166.5],[100.5,158.0],[74.0,156.5],[73.5,186.0],[59.0,186.5],[58.5,158.0],[49.0,156.5],[47.5,186.0],[32.0,187.5],[31.5,157.0],[21.5,158.0],[21.0,186.5],[18.5,184.0],[18.5,157.0],[1.5,157.0],[1.5,45.0],[4.5,40.0],[20.0,24.5],[60.0,8.5],[96.0,1.5],[250.0,1.5],[250.0,157.02],[132.62,250.0]]],"kind":"urban"},{"poly":[[[243.5,233.0],[218.5,205.0],[250.0,179.98],[250.0,238.9],[243.5,233.0]]],"kind":"urban"},{"poly":[[[1.5,228.0],[4.0,224.5],[12.0,228.5],[22.0,225.5],[23.5,216.0],[19.5,212.0],[23.0,211.5],[29.0,227.5],[36.0,228.5],[40.0,226.5],[63.08,250.0],[1.57,250.0],[1.5,228.0]]],"kind":"urban"},{"poly":[[[194.0,223.5],[207.0,215.5],[237.53,250.0],[161.37,250.0],[194.0,223.5]]],"kind":"urban"}],"roads":[{"poly":[[[41.0,227.5],[39.0,226.5],[30.0,227.5],[27.5,222.0],[25.0,220.5],[17.0,227.5],[10.0,227.5],[5.0,224.5],[2.0,227.5],[0.0,227.1],[0.0,216.77],[5.0,214.5],[14.0,217.5],[17.0,213.5],[25.0,210.5],[33.0,213.5],[36.0,217.5],[43.0,217.5],[53.5,224.0],[50.5,217.0],[50.5,204.0],[48.5,199.0],[49.5,197.0],[35.0,198.5],[27.0,195.5],[24.5,193.0],[21.5,185.0],[21.5,169.0],[18.0,167.5],[0.0,167.01],[0.0,157.99],[18.0,157.5],[21.0,158.5],[22.0,157.5],[31.0,157.5],[31.5,185.0],[35.0,188.5],[36.0,187.5],[37.0,188.5],[44.0,188.5],[47.5,185.0],[48.0,157.5],[57.5,158.0],[57.5,184.0],[59.0,186.5],[65.0,188.5],[72.0,186.5],[73.5,184.0],[74.0,157.5],[99.5,158.0],[99.5,165.0],[96.0,166.5],[94.5,169.0],[97.5,172.0],[97.5,179.0],[96.0,180.5],[87.0,180.5],[83.5,184.0],[87.0,187.5],[96.0,187.5],[97.0,188.5],[99.0,187.5],[99.5,195.0],[98.5,197.0],[99.5,199.0],[102.0,200.5],[106.0,197.5],[111.5,202.0],[114.5,207.0],[116.5,216.0],[114.5,226.0],[111.5,231.0],[107.0,234.5],[105.0,234.5],[103.5,230.0],[100.0,227.5],[70.0,227.5],[66.5,231.0],[85.5,250.0],[64.39,250.0],[41.0,227.5]],[[87.5,209.0],[88.5,208.0],[87.5,201.0],[88.5,199.0],[85.0,195.5],[79.0,195.5],[75.5,199.0],[77.5,202.0],[77.5,218.0],[81.0,221.5],[84.5,221.0],[87.5,218.0],[87.5,209.0]],[[70.5,215.0],[70.5,208.0],[71.5,207.0],[70.5,202.0],[72.5,199.0],[69.0,195.5],[62.0,195.5],[58.5,199.0],[60.5,202.0],[60.5,217.0],[62.0,219.5],[66.5,220.0],[68.5,219.0],[70.5,215.0]],[[104.0,209.5],[98.0,209.5],[97.5,217.0],[105.5,219.0],[105.5,211.0],[104.0,209.5]]],"bridge":false},{"poly":[[[136.0,247.5],[139.0,246.5],[145.0,240.5],[148.0,239.5],[152.0,234.5],[155.0,233.5],[167.0,224.5],[175.0,216.5],[183.0,211.5],[186.0,207.5],[189.0,206.5],[199.0,197.5],[202.0,196.5],[208.0,190.5],[213.0,187.5],[215.0,184.5],[222.0,180.5],[232.0,170.5],[237.0,168.5],[247.0,160.5],[249.0,157.5],[250.0,157.17],[250.0,179.59],[249.0,180.5],[241.0,185.5],[234.0,192.5],[227.0,196.5],[220.5,203.0],[219.5,206.0],[221.5,210.0],[231.5,219.0],[233.5,223.0],[247.5,236.0],[248.5,239.0],[250.0,240.5],[250.0,250.0],[238.5,250.0],[231.5,243.0],[230.5,240.0],[219.5,230.0],[208.0,216.5],[205.0,215.5],[201.0,217.5],[199.0,220.5],[190.0,227.5],[187.0,228.5],[180.0,235.5],[177.0,236.5],[175.0,239.5],[161.27,250.0],[134.12,250.0],[136.0,247.5]]],"bridge":false},{"poly":[[[105.0,0.5],[93.0,1.5],[87.0,3.5],[82.0,3.5],[57.0,8.5],[52.0,11.5],[14.0,26.5],[0.0,45.5],[0.0,28.38],[8.0,18.5],[51.82,0.0],[107.17,0.0],[105.0,0.5]]],"bridge":false},{"poly":[[[14.0,7.5],[0.0,8.95],[0.0,0.0],[32.0,0.0],[14.0,7.5]]],"bridge":false},{"poly":[[[5.0,203.5],[9.5,199.0],[7.5,195.0],[0.0,189.38],[0.0,179.5],[10.0,183.5],[15.5,189.0],[19.5,199.0],[16.5,207.0],[13.0,210.5],[5.0,213.5],[0.0,211.23],[0.0,200.83],[1.0,200.5],[5.0,203.5]]],"bridge":false},{"poly":[[[13.0,210.5],[16.5,207.0],[19.5,199.0],[15.5,189.0],[10.0,183.5],[0.0,179.5],[0.0,167.01],[18.0,167.5],[21.5,169.0],[21.5,185.0],[24.5,193.0],[27.0,195.5],[35.0,198.5],[49.5,197.0],[48.5,199.0],[50.5,204.0],[50.5,217.0],[53.5,224.0],[43.0,217.5],[36.0,217.5],[33.0,213.5],[25.0,210.5],[17.0,213.5],[14.0,217.5],[5.0,214.5],[0.0,216.77],[0.0,211.23],[5.0,213.5],[13.0,210.5]]],"bridge":false},{"poly":[[[32.0,0.0],[51.82,0.0],[8.0,18.5],[0.0,28.38],[0.0,8.95],[14.0,7.5],[32.0,0.0]]],"bridge":false},{"poly":[[[104.0,209.5],[105.5,211.0],[105.5,219.0],[97.5,217.0],[98.0,209.5],[104.0,209.5]]],"bridge":false}],"centerlines":[[[53.0,162.0],[53.0,191.0]],[[83.0,170.0],[79.0,175.0],[79.0,189.0]],[[43.0,211.0],[32.0,224.0]],[[74.0,192.0],[54.0,192.0]],[[74.0,192.0],[73.0,222.0]],[[25.0,205.0],[19.0,211.0],[10.0,214.0]],[[16.0,173.0],[27.0,162.0]],[[44.0,211.0],[58.0,228.0]],[[42.0,205.0],[26.0,205.0]],[[0.0,201.0],[10.0,214.0]],[[97.0,160.0],[91.Line truncated