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_10_3.json

@@ -1 +1 @@
-{"chunk":[10,3],"origin":[1500,-1750],"land":[[[0.0,250.0],[0.0,0.0],[250.0,0.0],[250.0,250.0],[0.0,250.0]]],"surfaces":[{"poly":[[235.0,14.5],[228.5,5.0],[229.41,0.0],[243.5,0.0],[243.5,6.0],[246.0,9.5],[250.0,9.06],[250.0,14.88],[248.0,16.5],[235.0,14.5]],"kind":"urban"},{"poly":[[1.5,191.0],[1.5,0.0],[17.3,0.0],[120.0,6.5],[140.5,49.0],[170.5,126.0],[40.0,186.5],[19.0,192.5],[1.5,191.0]],"kind":"urban"},{"poly":[[219.5,199.0],[211.5,171.0],[175.5,76.0],[146.0,8.5],[222.0,11.5],[231.0,12.5],[241.0,18.5],[250.0,17.5],[250.0,84.14],[236.5,92.0],[245.5,106.0],[250.0,103.55],[250.0,121.5],[244.0,121.5],[240.5,124.0],[239.5,146.0],[241.5,148.0],[238.5,149.0],[238.5,157.0],[246.5,163.0],[250.0,161.83],[250.0,197.14],[219.5,199.0]],"kind":"urban"},{"poly":[[247.5,146.0],[247.0,150.5],[241.5,147.0],[250.0,141.59],[250.0,147.5],[247.5,146.0]],"kind":"urban"},{"poly":[[31.5,208.0],[107.0,176.5],[175.0,142.5],[177.5,143.0],[185.5,160.0],[184.5,162.0],[188.5,167.0],[189.5,175.0],[192.5,178.0],[191.5,180.0],[198.5,196.0],[197.0,200.5],[187.0,201.5],[110.0,203.5],[31.5,208.0]],"kind":"urban"},{"poly":[[111.0,225.5],[105.5,221.0],[195.0,217.5],[200.0,217.5],[202.5,220.0],[146.0,224.5],[129.0,224.5],[127.0,221.5],[120.0,225.5],[111.0,225.5]],"kind":"urban"},{"poly":[[2.0,247.5],[0.5,242.0],[4.0,244.5],[9.0,241.5],[11.0,242.5],[11.5,235.0],[14.5,232.0],[12.0,227.5],[10.0,230.5],[8.0,228.5],[7.0,235.5],[1.5,228.0],[14.0,225.5],[104.0,221.5],[105.0,226.5],[93.5,228.0],[95.0,247.5],[2.0,247.5]],"kind":"urban"}],"roads":[{"poly":[[249.0,17.5],[244.0,17.5],[243.0,18.5],[238.0,17.5],[229.0,11.5],[149.0,7.5],[145.5,11.0],[158.5,37.0],[165.5,56.0],[176.5,80.0],[196.5,137.0],[206.5,159.0],[211.5,175.0],[213.5,178.0],[215.5,187.0],[218.5,193.0],[218.5,196.0],[221.0,199.5],[223.0,200.5],[250.0,198.86],[250.0,214.5],[245.0,216.5],[244.0,215.5],[238.0,215.5],[235.5,217.0],[234.5,219.0],[235.5,220.0],[232.0,221.5],[230.5,221.0],[229.0,217.5],[227.0,216.5],[225.0,217.5],[223.5,223.0],[225.5,228.0],[229.5,231.0],[226.5,234.0],[226.5,239.0],[227.5,240.0],[227.5,249.0],[228.5,250.0],[218.0,250.0],[216.5,239.0],[217.5,233.0],[214.0,223.5],[216.5,246.0],[215.5,249.0],[215.9,250.0],[205.5,250.0],[206.5,248.0],[205.5,245.0],[205.5,232.0],[203.5,228.0],[203.5,222.0],[199.0,217.5],[140.0,218.5],[139.0,219.5],[132.0,219.5],[128.0,223.5],[124.0,219.5],[121.0,220.5],[113.0,219.5],[110.5,221.0],[109.5,223.0],[110.5,225.0],[108.0,226.5],[105.5,225.0],[104.0,221.5],[98.0,220.5],[97.0,221.5],[56.0,223.5],[52.0,227.5],[50.0,224.5],[46.0,223.5],[45.0,224.5],[7.0,225.5],[0.0,227.25],[0.0,216.35],[7.0,215.5],[36.0,214.5],[32.5,205.0],[34.5,200.0],[15.0,203.5],[0.0,201.74],[0.0,192.1],[7.0,193.5],[29.0,191.5],[39.0,187.5],[169.5,127.0],[170.5,125.0],[169.5,121.0],[166.0,118.5],[163.5,119.0],[166.5,115.0],[163.5,104.0],[138.5,43.0],[130.5,28.0],[122.0,7.5],[118.0,5.5],[92.0,4.5],[91.0,3.5],[42.0,0.5],[41.5,0.0],[128.35,0.0],[132.5,6.0],[162.5,75.0],[175.5,108.0],[176.5,114.0],[179.5,118.0],[153.5,50.0],[136.5,15.0],[136.5,7.0],[141.0,0.5],[142.33,0.0],[192.12,0.0],[218.0,1.5],[218.68,0.0],[229.5,0.0],[228.5,1.0],[228.5,6.0],[230.5,10.0],[233.5,11.0],[236.5,8.0],[236.5,3.0],[235.0,0.0],[250.0,0.0],[250.0,9.1],[249.0,8.5],[247.0,9.5],[242.0,6.5],[235.5,13.0],[239.0,16.5],[248.5,16.0],[250.0,15.0],[250.0,16.88],[249.0,17.5]],"bridge":false},{"poly":[[136.5,15.0],[153.5,50.0],[179.5,118.0],[176.5,114.0],[175.5,108.0],[162.5,75.0],[132.5,6.0],[128.35,0.0],[142.33,0.0],[141.0,0.5],[136.5,7.0],[136.5,15.0]],"bridge":false},{"poly":[[218.0,1.5],[192.12,0.0],[218.68,0.0],[218.0,1.5]],"bridge":false},{"poly":[[217.5,233.0],[216.5,239.0],[218.0,250.0],[215.9,250.0],[215.5,249.0],[216.5,246.0],[214.0,223.5],[217.5,233.0]],"bridge":false},{"poly":[[218.5,209.0],[214.5,216.0],[214.5,222.0],[212.5,221.0],[210.5,214.0],[203.5,209.0],[206.5,206.0],[209.0,198.5],[211.5,204.0],[218.5,209.0]],"bridge":false},{"poly":[[180.0,119.5],[181.5,122.0],[187.5,140.0],[183.0,135.5],[177.5,133.0],[180.5,125.0],[180.0,119.5]],"bridge":false},{"poly":[[36.0,214.5],[7.0,215.5],[0.0,216.35],[0.0,201.74],[15.0,203.5],[34.5,200.0],[32.5,205.0],[36.0,214.5]],"bridge":false}],"centerlines":[[[235.0,14.0],[239.0,17.0],[248.0,17.0],[254.0,11.0]],[[216.0,236.0],[213.0,211.0]],[[28.0,209.0],[35.0,216.0],[51.0,216.0]],[[4.0,209.0],[-4.0,217.0],[-22.0,219.0]],[[4.0,209.0],[-6.0,197.0],[-19.0,190.0]],[[4.0,209.0],[27.0,209.0]],[[53.0,216.0],[106.0,213.0]],[[369.0,198.0],[365.0,200.0],[265.0,205.0],[229.0,209.0]],[[180.0,131.0],[179.0,118.0],[176.0,111.0]],[[216.0,-2.0],[226.0,9.0],[234.0,13.0]],[[216.0,237.0],[224.0,317.0]],[[180.0,132.0],[99.0,170.0],[44.0,193.0],[38.0,196.0],[28.0,208.0]],[[181.0,132.0],[186.0,137.0],[201.0,172.0],[207.0,190.0],[209.0,207.0]],[[247.0,1.0],[250.0,-3.0],[260.0,-8.0]],[[107.0,213.0],[127.0,211.0]],[[175.0,110.0],[163.0,75.0],[138.0,20.0],[135.0,-5.0]],[[229.0,209.0],[214.0,210.0]],[[129.0,211.0],[208.0,208.0]]],"buildings":[{"poly":[[1.0,191.5],[-3.5,191.0],[-2.5,190.0]Line truncated
+{"chunk":[10,3],"origin":[1500,-1750],"land":[[[[0.0,250.0],[0.0,0.0],[250.0,0.0],[250.0,250.0],[0.0,250.0]]]],"surfaces":[{"poly":[[[235.0,14.5],[228.5,5.0],[229.41,0.0],[243.5,0.0],[243.5,6.0],[246.0,9.5],[250.0,9.06],[250.0,14.88],[248.0,16.5],[235.0,14.5]]],"kind":"urban"},{"poly":[[[1.5,191.0],[1.5,0.0],[17.3,0.0],[120.0,6.5],[140.5,49.0],[170.5,126.0],[40.0,186.5],[19.0,192.5],[1.5,191.0]],[[45.0,160.5],[75.0,147.5],[108.0,144.5],[140.0,130.5],[157.0,129.5],[165.5,119.0],[139.0,97.5],[132.0,105.5],[98.0,118.5],[98.5,128.0],[91.0,129.5],[89.5,119.0],[95.0,118.5],[101.5,114.0],[104.5,97.0],[83.0,78.5],[68.5,121.0],[37.0,134.5],[16.5,156.0],[15.5,161.0],[19.5,163.0],[45.0,160.5]]],"kind":"urban"},{"poly":[[[219.5,199.0],[211.5,171.0],[175.5,76.0],[146.0,8.5],[222.0,11.5],[231.0,12.5],[241.0,18.5],[250.0,17.5],[250.0,84.14],[236.5,92.0],[245.5,106.0],[250.0,103.55],[250.0,121.5],[244.0,121.5],[240.5,124.0],[239.5,146.0],[241.5,148.0],[238.5,149.0],[238.5,157.0],[246.5,163.0],[250.0,161.83],[250.0,197.14],[219.5,199.0]],[[217.0,170.5],[219.0,172.5],[220.0,170.5],[222.0,171.5],[223.0,168.5],[225.0,170.5],[226.0,167.5],[228.0,169.5],[229.0,160.5],[234.0,167.5],[237.5,166.0],[237.5,157.0],[234.0,150.5],[228.0,152.5],[227.0,155.5],[225.0,153.5],[224.0,156.5],[223.0,154.5],[221.0,157.5],[220.0,155.5],[216.0,156.5],[215.0,161.5],[212.0,158.5],[208.5,160.0],[212.5,164.0],[211.0,166.5],[216.5,167.0],[212.5,172.0],[216.5,173.0],[217.0,170.5]]],"kind":"urban"},{"poly":[[[247.5,146.0],[247.0,150.5],[241.5,147.0],[250.0,141.59],[250.0,147.5],[247.5,146.0]]],"kind":"urban"},{"poly":[[[31.5,208.0],[107.0,176.5],[175.0,142.5],[177.5,143.0],[185.5,160.0],[184.5,162.0],[188.5,167.0],[189.5,175.0],[192.5,178.0],[191.5,180.0],[198.5,196.0],[197.0,200.5],[187.0,201.5],[110.0,203.5],[31.5,208.0]],[[154.0,191.5],[157.0,193.5],[161.0,189.5],[165.0,190.5],[165.5,183.0],[168.0,181.5],[174.0,187.5],[177.5,186.0],[178.0,178.5],[185.0,183.5],[189.0,182.5],[190.5,179.0],[186.5,176.0],[188.5,174.0],[184.5,173.0],[186.5,169.0],[184.0,167.5],[181.0,171.5],[178.0,169.5],[175.0,173.5],[173.0,171.5],[172.0,174.5],[170.0,172.5],[169.0,175.5],[167.0,173.5],[166.0,176.5],[165.0,174.5],[158.0,176.5],[155.0,180.5],[154.0,178.5],[152.0,181.5],[150.0,179.5],[149.0,182.5],[147.0,180.5],[146.5,188.0],[143.5,190.0],[150.5,195.0],[154.0,191.5]],[[118.0,196.5],[128.0,194.5],[133.0,201.5],[133.0,193.5],[138.0,199.5],[141.0,198.5],[142.5,190.0],[139.5,184.0],[134.5,185.0],[135.0,192.5],[129.0,186.5],[124.0,188.5],[123.0,191.5],[121.0,189.5],[120.0,192.5],[119.0,190.5],[117.0,193.5],[116.0,191.5],[112.0,192.5],[111.0,197.5],[106.0,194.5],[98.0,197.5],[97.0,200.5],[94.5,199.0],[95.0,201.5],[109.0,198.5],[112.0,202.5],[117.5,202.0],[118.0,196.5]]],"kind":"urban"},{"poly":[[[111.0,225.5],[105.5,221.0],[195.0,217.5],[200.0,217.5],[202.5,220.0],[146.0,224.5],[129.0,224.5],[127.0,221.5],[120.0,225.5],[111.0,225.5]]],"kind":"urban"},{"poly":[[[2.0,247.5],[0.5,242.0],[4.0,244.5],[9.0,241.5],[11.0,242.5],[11.5,235.0],[14.5,232.0],[12.0,227.5],[10.0,230.5],[8.0,228.5],[7.0,235.5],[1.5,228.0],[14.0,225.5],[104.0,221.5],[105.0,226.5],[93.5,228.0],[95.0,247.5],[2.0,247.5]],[[40.0,232.5],[41.0,229.5],[43.0,231.5],[44.0,229.5],[58.5,226.0],[42.0,225.5],[40.0,229.5],[24.5,232.0],[29.5,236.0],[40.0,232.5]]],"kind":"urban"}],"roads":[{"poly":[[[249.0,17.5],[244.0,17.5],[243.0,18.5],[238.0,17.5],[229.0,11.5],[149.0,7.5],[145.5,11.0],[158.5,37.0],[165.5,56.0],[176.5,80.0],[196.5,137.0],[206.5,159.0],[211.5,175.0],[213.5,178.0],[215.5,187.0],[218.5,193.0],[218.5,196.0],[221.0,199.5],[223.0,200.5],[250.0,198.86],[250.0,214.5],[245.0,216.5],[244.0,215.5],[238.0,215.5],[235.5,217.0],[234.5,219.0],[235.5,220.0],[232.0,221.5],[230.5,221.0],[229.0,217.5],[227.0,216.5],[225.0,217.5],[223.5,223.0],[225.5,228.0],[229.5,231.0],[226.5,234.0],[226.5,239.0],[227.5,240.0],[227.5,249.0],[228.5,250.0],[218.0,250.0],[216.5,239.0],[217.5,233.0],[214.0,223.5],[216.5,246.0],[215.5,249.0],[215.9,250.0],[205.5,250.0],[206.5,248.0],[205.5,245.0],[205.5,232.0],[203.5,228.0],[203.5,222.0],[199.0,217.5],[140.0,218.5],[139.0,219.5],[132.0,219.5],[128.0,223.5],[124.0,219.5],[121.0,220.5],[113.0,219.5],[110.5,221.0],[109.5,223.0],[110.5,225.0],[108.0,226.5],[105.5,225.0],[104.0,221.5],[98.0,220.5],[97.0,221.5],[56.0,223.5],[52.0,227.5],[50.0,224.5],[46.0,223.5],[45.0,224.5],[7.0,225.5],[0.0,227.25],[0.0,216.35],[7.0,215.5],[36.0,214.5],[32.5,205.0],[34.5,200.0],[15.0,203.5],[0.0,201.74],[0.0,192.1],[7.0,193.5],[29.0,191.5],[39.0,187.5],[169.5,127.0],[170.5,125.0],[169.5,121.0],[166.0,118.5],[163.5,119.0],[166.5,115.0],[163.5,104.0],[138.5,43.0],[130.5,28.0],[122.0,7.5],[118.0,5.5],[92.0,4.5],[91.0,3.5],[42.0,0.5],[41.5,0.0],[128.35,0.0],[132.5,6.0],[162.5,75.0],[175.5,108.0],[176.5,114.0],[179.5,118.0],[153.5,50.0],[136.5,15.0],[136.5,7.0],[141.0,0.5],[142.33,0.0],[192.12,0.0],[218.0,1.5],[218.68,0.0],[229.5,0.0],[228.5,1.0],[228.5,6.0],[230.5,10.0],[233.5,11.0],[236.5,8.0],[236.5,3.0],[235.0,0.0],[250.Line truncated