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_11_2.json

@@ -1 +1 @@
-{"chunk":[11,2],"origin":[1750,-2000],"land":[[[247.42,250.0],[0.0,250.0],[0.0,81.86],[3.0,81.5],[7.0,81.5],[12.0,85.5],[32.0,84.5],[42.0,87.5],[44.5,85.0],[44.5,79.0],[28.5,45.0],[18.5,31.0],[18.5,27.0],[6.5,2.0],[5.83,0.0],[247.47,0.0],[247.42,250.0]]],"surfaces":[{"poly":[[19.0,84.5],[36.0,85.5],[34.5,91.0],[37.0,93.5],[44.0,91.5],[39.5,98.0],[40.5,102.0],[46.0,102.5],[46.5,105.0],[41.0,105.5],[40.5,108.0],[47.0,108.5],[52.5,104.0],[52.5,100.0],[46.5,99.0],[51.5,94.0],[46.5,92.0],[50.5,90.0],[50.0,87.5],[45.5,87.0],[49.5,84.0],[44.5,83.0],[48.5,81.0],[45.5,79.0],[47.5,77.0],[42.5,76.0],[46.5,74.0],[46.5,71.0],[45.0,68.5],[39.5,68.0],[43.5,64.0],[39.5,56.0],[36.5,55.0],[36.5,51.0],[32.5,50.0],[34.5,48.0],[32.5,43.0],[26.5,43.0],[25.5,40.0],[28.5,36.0],[24.5,28.0],[20.5,27.0],[22.5,24.0],[19.5,18.0],[15.5,17.0],[17.5,14.0],[13.5,11.0],[15.5,10.0],[14.5,7.0],[8.5,6.0],[11.0,1.5],[13.5,2.0],[51.5,77.0],[58.5,103.0],[71.5,203.0],[50.0,222.5],[29.0,233.5],[22.0,235.5],[0.0,235.5],[0.0,91.15],[19.0,84.5]],"kind":"urban"},{"poly":[[7.0,243.5],[9.5,249.0],[9.39,250.0],[3.5,250.0],[0.0,244.5],[0.0,238.83],[7.0,243.5]],"kind":"urban"},{"poly":[[177.5,120.0],[175.5,108.0],[166.0,98.5],[157.0,93.5],[110.0,90.5],[101.0,87.5],[86.0,77.5],[77.5,67.0],[45.0,1.5],[234.5,2.0],[237.5,14.0],[242.0,16.5],[236.0,16.5],[234.0,13.5],[231.0,13.5],[230.0,18.5],[199.0,17.5],[197.5,20.0],[200.5,22.0],[195.0,23.5],[194.5,26.0],[197.5,25.0],[196.5,49.0],[199.0,69.5],[216.0,67.5],[248.5,69.0],[246.5,71.0],[248.5,87.0],[247.5,113.0],[233.5,149.0],[244.0,150.5],[247.5,143.0],[247.5,220.0],[190.0,219.5],[186.5,233.0],[189.5,244.0],[192.5,245.0],[192.24,250.0],[179.48,250.0],[177.5,120.0]],"kind":"urban"},{"poly":[[139.5,230.0],[147.5,229.0],[147.5,208.0],[159.5,206.0],[159.0,189.5],[128.5,190.0],[128.0,229.5],[118.0,229.5],[104.0,218.5],[84.5,218.0],[70.5,103.0],[64.0,75.5],[80.0,94.5],[91.0,101.5],[113.0,107.5],[148.0,108.5],[154.0,110.5],[160.5,118.0],[162.5,181.0],[161.0,230.5],[139.5,230.0]],"kind":"urban"},{"poly":[[222.5,148.0],[216.0,124.5],[209.5,148.0],[203.5,148.0],[197.0,114.5],[201.5,115.0],[207.0,139.5],[214.0,114.5],[218.5,115.0],[225.0,138.5],[229.5,116.0],[235.5,115.0],[228.0,148.5],[222.5,148.0]],"kind":"urban"},{"poly":[[236.5,147.0],[249.0,114.5],[249.5,129.0],[246.5,135.0],[249.5,136.0],[249.5,140.0],[244.5,141.0],[242.0,148.5],[236.5,147.0]],"kind":"urban"},{"poly":[[85.0,224.5],[102.0,224.5],[112.0,233.5],[119.0,235.5],[162.5,237.0],[162.5,250.0],[87.32,250.0],[85.0,224.5]],"kind":"urban"},{"poly":[[210.0,244.5],[241.0,244.5],[245.0,240.5],[247.5,241.0],[247.5,250.0],[234.5,250.0],[234.0,249.5],[220.0,249.5],[219.36,250.0],[209.85,250.0],[210.0,244.5]],"kind":"urban"}],"roads":[{"poly":[[44.5,4.0],[47.5,8.0],[77.5,68.0],[88.0,79.5],[104.0,89.5],[114.0,91.5],[137.0,91.5],[138.0,92.5],[155.0,93.5],[162.0,96.5],[169.0,101.5],[175.5,109.0],[176.5,112.0],[176.5,151.0],[177.5,152.0],[177.5,210.0],[178.5,211.0],[178.5,243.0],[179.5,244.0],[179.5,250.0],[163.5,250.0],[163.5,239.0],[160.0,235.5],[115.0,234.5],[105.0,225.5],[101.0,223.5],[88.0,223.5],[84.5,227.0],[85.38,250.0],[75.5,250.0],[75.5,242.0],[69.0,243.5],[61.0,240.5],[58.5,238.0],[56.0,230.5],[30.0,244.5],[18.5,246.0],[18.86,250.0],[9.5,250.0],[6.0,246.5],[3.0,247.5],[1.61,250.0],[0.0,250.0],[0.0,245.5],[2.0,246.5],[5.5,243.0],[3.0,239.5],[0.0,238.5],[0.0,236.43],[26.0,235.5],[51.0,222.5],[71.5,202.0],[67.5,166.0],[65.5,158.0],[65.5,151.0],[62.5,136.0],[62.5,128.0],[61.5,127.0],[57.5,97.0],[55.5,93.0],[51.5,76.0],[14.5,3.0],[11.0,1.5],[8.0,3.5],[6.5,2.0],[5.83,0.0],[23.46,0.0],[32.5,16.0],[60.5,74.0],[68.0,72.5],[68.5,71.0],[31.54,0.0],[43.17,0.0],[44.5,4.0]],"bridge":false},{"poly":[[5.0,83.5],[6.0,84.5],[11.0,84.5],[11.5,86.0],[8.0,89.5],[4.0,89.5],[0.0,91.1],[0.0,83.5],[5.0,83.5]],"bridge":false},{"poly":[[18.5,246.0],[30.0,244.5],[56.0,230.5],[58.5,238.0],[61.0,240.5],[69.0,243.5],[75.5,242.0],[75.5,250.0],[18.86,250.0],[18.5,246.0]],"bridge":false},{"poly":[[68.5,71.0],[68.0,72.5],[60.5,74.0],[32.5,16.0],[23.46,0.0],[31.54,0.0],[68.5,71.0]],"bridge":false},{"poly":[[197.5,34.0],[233.0,33.5],[233.0,34.5],[198.0,34.5],[197.5,34.0]],"bridge":false},{"poly":[[233.0,149.5],[222.0,150.5],[220.5,149.0],[218.5,141.0],[216.0,139.5],[213.5,141.0],[211.5,149.0],[210.0,150.5],[203.0,150.5],[201.5,149.0],[193.5,113.0],[202.0,112.5],[203.5,114.0],[204.5,119.0],[207.0,120.5],[210.5,118.0],[212.0,112.5],[219.0,112.5],[220.5,114.0],[221.5,119.0],[224.0,120.5],[226.5,119.0],[229.0,112.5],[238.0,112.5],[235.5,127.0],[232.5,136.0],[236.0,139.5],[239.5,136.0],[246.5,115.0],[249.0,112.5],[249.5,118.0],[246.5,120.0],[243.5,128.0],[245.0,130.5],[249.5,131.0],[249.5,142.0],[245.5,145.0],[243.0,150.5],[234.0,150.5],[233.0,149.5]],"bridge":false}],"centerlines":[[[173.0,291.0],[171.0,288.0],[171.0,234.0]],[[51.0,245.0],[61.0,223.0],[74.0,218.0]],[[-5.0,236.0],[6.0,238.0],[10.0,241.0]],[[171.0,232.0],[170.0,207.0]],[[21.0,249.0],[12.0,259.0],[5.0,260.0]],[[62.0,72.0],[60.0,74.0],[60.0,88Line truncated
+{"chunk":[11,2],"origin":[1750,-2000],"land":[[[[247.42,250.0],[0.0,250.0],[0.0,81.86],[3.0,81.5],[7.0,81.5],[12.0,85.5],[32.0,84.5],[42.0,87.5],[44.5,85.0],[44.5,79.0],[28.5,45.0],[18.5,31.0],[18.5,27.0],[6.5,2.0],[5.83,0.0],[247.47,0.0],[247.42,250.0]]]],"surfaces":[{"poly":[[[19.0,84.5],[36.0,85.5],[34.5,91.0],[37.0,93.5],[44.0,91.5],[39.5,98.0],[40.5,102.0],[46.0,102.5],[46.5,105.0],[41.0,105.5],[40.5,108.0],[47.0,108.5],[52.5,104.0],[52.5,100.0],[46.5,99.0],[51.5,94.0],[46.5,92.0],[50.5,90.0],[50.0,87.5],[45.5,87.0],[49.5,84.0],[44.5,83.0],[48.5,81.0],[45.5,79.0],[47.5,77.0],[42.5,76.0],[46.5,74.0],[46.5,71.0],[45.0,68.5],[39.5,68.0],[43.5,64.0],[39.5,56.0],[36.5,55.0],[36.5,51.0],[32.5,50.0],[34.5,48.0],[32.5,43.0],[26.5,43.0],[25.5,40.0],[28.5,36.0],[24.5,28.0],[20.5,27.0],[22.5,24.0],[19.5,18.0],[15.5,17.0],[17.5,14.0],[13.5,11.0],[15.5,10.0],[14.5,7.0],[8.5,6.0],[11.0,1.5],[13.5,2.0],[51.5,77.0],[58.5,103.0],[71.5,203.0],[50.0,222.5],[29.0,233.5],[22.0,235.5],[0.0,235.5],[0.0,91.15],[19.0,84.5]],[[56.5,176.0],[56.0,155.5],[50.0,155.5],[42.5,160.0],[42.5,167.0],[49.5,168.0],[49.5,178.0],[56.5,176.0]],[[50.5,185.0],[49.0,184.5],[43.5,188.0],[43.5,200.0],[51.5,200.0],[50.5,185.0]]],"kind":"urban"},{"poly":[[[7.0,243.5],[9.5,249.0],[9.39,250.0],[3.5,250.0],[0.0,244.5],[0.0,238.83],[7.0,243.5]]],"kind":"urban"},{"poly":[[[177.5,120.0],[175.5,108.0],[166.0,98.5],[157.0,93.5],[110.0,90.5],[101.0,87.5],[86.0,77.5],[77.5,67.0],[45.0,1.5],[234.5,2.0],[237.5,14.0],[242.0,16.5],[236.0,16.5],[234.0,13.5],[231.0,13.5],[230.0,18.5],[199.0,17.5],[197.5,20.0],[200.5,22.0],[195.0,23.5],[194.5,26.0],[197.5,25.0],[196.5,49.0],[199.0,69.5],[216.0,67.5],[248.5,69.0],[246.5,71.0],[248.5,87.0],[247.5,113.0],[233.5,149.0],[244.0,150.5],[247.5,143.0],[247.5,220.0],[190.0,219.5],[186.5,233.0],[189.5,244.0],[192.5,245.0],[192.24,250.0],[179.48,250.0],[177.5,120.0]],[[238.5,113.0],[229.0,111.5],[224.0,127.5],[220.5,113.0],[212.0,112.5],[207.0,128.5],[203.5,113.0],[194.0,112.5],[201.5,150.0],[211.5,150.0],[216.0,133.5],[220.5,150.0],[230.5,150.0],[238.5,113.0]],[[158.0,54.5],[159.0,51.5],[171.0,47.5],[172.0,40.5],[178.5,41.0],[174.5,35.0],[178.0,34.5],[178.5,32.0],[171.5,29.0],[171.0,21.5],[161.0,19.5],[160.5,14.0],[155.0,12.5],[120.0,13.5],[109.0,16.5],[103.5,21.0],[99.5,29.0],[99.5,39.0],[108.0,50.5],[125.0,55.5],[158.0,54.5]]],"kind":"urban"},{"poly":[[[139.5,230.0],[147.5,229.0],[147.5,208.0],[159.5,206.0],[159.0,189.5],[128.5,190.0],[128.0,229.5],[118.0,229.5],[104.0,218.5],[84.5,218.0],[70.5,103.0],[64.0,75.5],[80.0,94.5],[91.0,101.5],[113.0,107.5],[148.0,108.5],[154.0,110.5],[160.5,118.0],[162.5,181.0],[161.0,230.5],[139.5,230.0]]],"kind":"urban"},{"poly":[[[222.5,148.0],[216.0,124.5],[209.5,148.0],[203.5,148.0],[197.0,114.5],[201.5,115.0],[207.0,139.5],[214.0,114.5],[218.5,115.0],[225.0,138.5],[229.5,116.0],[235.5,115.0],[228.0,148.5],[222.5,148.0]]],"kind":"urban"},{"poly":[[[236.5,147.0],[249.0,114.5],[249.5,129.0],[246.5,135.0],[249.5,136.0],[249.5,140.0],[244.5,141.0],[242.0,148.5],[236.5,147.0]]],"kind":"urban"},{"poly":[[[85.0,224.5],[102.0,224.5],[112.0,233.5],[119.0,235.5],[162.5,237.0],[162.5,250.0],[87.32,250.0],[85.0,224.5]]],"kind":"urban"},{"poly":[[[210.0,244.5],[241.0,244.5],[245.0,240.5],[247.5,241.0],[247.5,250.0],[234.5,250.0],[234.0,249.5],[220.0,249.5],[219.36,250.0],[209.85,250.0],[210.0,244.5]]],"kind":"urban"}],"roads":[{"poly":[[[44.5,4.0],[47.5,8.0],[77.5,68.0],[88.0,79.5],[104.0,89.5],[114.0,91.5],[137.0,91.5],[138.0,92.5],[155.0,93.5],[162.0,96.5],[169.0,101.5],[175.5,109.0],[176.5,112.0],[176.5,151.0],[177.5,152.0],[177.5,210.0],[178.5,211.0],[178.5,243.0],[179.5,244.0],[179.5,250.0],[163.5,250.0],[163.5,239.0],[160.0,235.5],[115.0,234.5],[105.0,225.5],[101.0,223.5],[88.0,223.5],[84.5,227.0],[85.38,250.0],[75.5,250.0],[75.5,242.0],[69.0,243.5],[61.0,240.5],[58.5,238.0],[56.0,230.5],[30.0,244.5],[18.5,246.0],[18.86,250.0],[9.5,250.0],[6.0,246.5],[3.0,247.5],[1.61,250.0],[0.0,250.0],[0.0,245.5],[2.0,246.5],[5.5,243.0],[3.0,239.5],[0.0,238.5],[0.0,236.43],[26.0,235.5],[51.0,222.5],[71.5,202.0],[67.5,166.0],[65.5,158.0],[65.5,151.0],[62.5,136.0],[62.5,128.0],[61.5,127.0],[57.5,97.0],[55.5,93.0],[51.5,76.0],[14.5,3.0],[11.0,1.5],[8.0,3.5],[6.5,2.0],[5.83,0.0],[23.46,0.0],[32.5,16.0],[60.5,74.0],[68.0,72.5],[68.5,71.0],[31.54,0.0],[43.17,0.0],[44.5,4.0]],[[163.5,221.0],[162.5,220.0],[162.5,209.0],[159.5,206.0],[162.5,203.0],[162.5,141.0],[161.5,140.0],[161.5,119.0],[159.5,115.0],[155.0,110.5],[145.0,107.5],[122.0,107.5],[121.0,106.5],[111.0,106.5],[98.0,103.5],[95.0,101.5],[90.0,100.5],[80.0,93.5],[73.5,87.0],[71.0,82.5],[69.0,81.5],[67.0,82.5],[65.5,87.0],[70.5,106.0],[70.5,113.0],[71.5,114.0],[71.5,121.0],[72.5,122.0],[73.5,136.0],[75.5,144.0],[76.5,159.0],[78.5,166.0],[78.5,173.0],[79.5,174.0],[79.5,181.0],[82.5,196.0],[82.5,207.0],[83.5,208.0],[84.5,218.0],[87.0,219.5],[88.0,218.5],[89.0,219.5],[90.0,218.5],[91.0,219.5],[103.0,218.5],[110.0,222.5],[117.0,229.5],[124.0,229.5],[125.0,230.5],[160Line truncated