feat(extract): Chunk-Ausgabe, Manifest und Ablaufsteuerung

Task 6: leonida/emit.py (chunk_box, split_by_chunk, chunk_payload und die
Chunk-lokalen three.js-Koordinaten, write_chunks, write_debug_png) sowie
run.py als Ablaufsteuerung, die alles aus den Tasks 3-5 zu 144 Chunk-Dateien
und einem Manifest unter public/data/vice-a/ zusammenfuehrt.

Zwei Abweichungen vom Referenzcode der Aufgabe, beide durch Gegenrechnen
gegen die dort genannten Realwerte gefunden:

- test_emit.py::test_coordinates_are_chunk_local_three_js gab im Original
  das ungeschnittene BIG (spannt vier Chunks) direkt an chunk_payload();
  chunk_payload() clippt selbst nicht (das tut in run.py split_by_chunk_all
  vorher), darum lag der Rand bei x=300 statt <=250 und der Test schlug mit
  dem gegebenen Code fehl. Fix: BIG vor dem Aufruf mit split_by_chunk auf
  Chunk (0,0) zuschneiden, wie es run.py fuer "land" ohnehin tut.

- run.pys Filter "Gebaeude, die zu >50% in einem Strassenpolygon liegen,
  gelten als Strasse" pruefte im Original ALLE rohen Gebaeude gegen
  road_polygons(labels) direkt. road_polygons() zaehlt "spekulativ" selbst
  zu den Strassenklassen (ROAD_CLASSES) und schliesst zusaetzlich mit
  disk(3) gegen Strassennamen; ein isoliertes "spekulativ"-Gebaeude
  ueberlappt sich darueber praktisch mit sich selbst. Ergebnis am realen
  Mosaik: von 267 rohen spekulativen Gebaeuden ueberlebten nur 3 (statt der
  in der Aufgabe genannten Groessenordnung von 258), und die Schliessung
  riss zusaetzlich 211 gewoehnliche graue Gebaeude mit heraus, die die
  Notiz aus Task 5 ausdruecklich nicht meinte ("die ROTEN Flaechen ...
  werden abgezogen"). Fix: eigenes, unzweideutiges Strassenmass nur aus
  "strasse"/"weg" (ohne "spekulativ", ohne Namens-Schliessung), Pruefung
  nur auf spekulative Kandidaten begrenzt. Ergebnis: 2.348 Gebaeude, davon
  263 spekulativ (Aufgabe: 2.352 bzw. 258) - Wahrzeichenhoehen (68 Stueck,
  31-248 m) und Palmenzahl (2.133) treffen die genannten Referenzwerte exakt.

Pipeline-Lauf am gecachten Mosaik: 144 Chunk-Dateien + Manifest, 2,5 MB
gesamt (Budget 10 MB), groesste Datei chunk_9_1.json/chunk_10_1.json mit
je 40 KB. Alle drei Toleranzgrenzen (wasser/strasse/gebaeude) eingehalten.
Debug-PNGs stichprobenartig gesichtet: Kuestenlinie, Strassennetz
(inklusive Kreuzungen und einer Auffahrt-Rampe) und ein Strand mit
Palmenreihe liegen deckungsgleich auf dem Mosaik; der wasserreine Chunk
(4,10) zeigt korrekt keine Vektoren.

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

public/data/vice-a/chunk_4_5.json

@@ -0,0 +1 @@
+{"chunk":[4,5],"origin":[0,-1250],"land":[[[249.5,171.0],[242.5,143.0],[238.0,139.5],[227.0,145.5],[206.0,153.5],[195.0,155.5],[183.0,155.5],[171.0,151.5],[162.0,151.5],[152.0,156.5],[135.0,161.5],[92.0,171.5],[39.0,186.5],[30.0,186.5],[20.0,182.5],[12.5,176.0],[6.5,163.0],[1.0,158.5],[0.0,158.5],[0.0,14.23],[4.0,13.5],[23.0,6.5],[31.0,5.5],[33.0,3.5],[47.0,0.0],[250.0,0.0],[250.0,171.5],[249.5,171.0]]],"surfaces":[{"poly":[[28.0,53.5],[39.0,51.5],[40.0,47.5],[46.5,46.0],[39.5,18.0],[2.0,25.5],[2.0,13.5],[14.0,9.5],[18.0,13.5],[18.5,9.0],[21.0,7.5],[25.0,11.5],[26.0,8.5],[28.5,10.0],[29.0,5.5],[34.0,8.5],[36.0,5.5],[39.0,7.5],[40.0,4.5],[42.5,6.0],[43.0,1.5],[49.0,4.5],[50.0,1.5],[52.0,3.5],[53.0,0.5],[55.0,2.5],[55.5,0.0],[125.3,0.0],[128.5,8.0],[144.0,5.5],[151.0,1.5],[158.0,1.5],[157.61,0.0],[180.27,0.0],[183.5,6.0],[190.5,3.0],[189.3,0.0],[223.83,0.0],[224.5,2.0],[227.0,1.5],[229.5,8.0],[238.5,6.0],[237.38,0.0],[250.0,0.0],[250.0,48.76],[232.0,54.5],[216.5,12.0],[212.0,7.5],[201.0,7.5],[29.0,55.5],[28.0,53.5]],"kind":"urban"},{"poly":[[112.0,92.5],[110.5,88.0],[107.5,87.0],[110.5,86.0],[108.5,78.0],[111.5,75.0],[106.5,74.0],[105.0,67.5],[101.0,70.5],[100.0,68.5],[94.0,68.5],[91.5,71.0],[90.5,75.0],[93.5,81.0],[96.5,82.0],[94.0,85.5],[88.0,75.5],[85.5,77.0],[88.0,78.5],[78.0,81.5],[75.0,73.5],[67.0,73.5],[67.0,75.5],[61.0,75.5],[61.0,77.5],[56.0,75.5],[54.5,77.0],[57.0,78.5],[37.0,83.5],[32.5,66.0],[62.0,55.5],[208.5,16.0],[215.5,37.0],[199.5,42.0],[202.5,55.0],[206.0,57.5],[221.0,52.5],[225.0,69.5],[166.0,85.5],[112.0,92.5]],"kind":"urban"},{"poly":[[234.0,62.5],[250.0,57.5],[250.0,62.44],[235.0,66.5],[234.0,62.5]],"kind":"urban"},{"poly":[[1.5,77.0],[8.5,75.0],[7.5,71.0],[10.0,63.5],[12.5,73.0],[15.0,75.5],[24.0,73.5],[27.5,84.0],[26.0,87.5],[5.5,94.0],[12.0,117.5],[81.0,97.5],[80.5,92.0],[83.5,92.0],[82.0,89.5],[91.0,89.5],[91.0,87.5],[93.0,89.5],[95.5,88.0],[94.0,86.5],[97.5,88.0],[100.0,97.5],[30.0,122.5],[3.0,134.5],[1.5,77.0]],"kind":"urban"}],"roads":[{"poly":[[249.0,83.5],[235.0,86.5],[229.0,89.5],[225.0,89.5],[215.0,93.5],[201.0,96.5],[196.0,101.5],[192.5,103.0],[191.5,105.0],[193.0,107.5],[199.0,108.5],[221.0,101.5],[228.5,101.0],[227.0,103.5],[220.0,104.5],[216.5,108.0],[219.5,115.0],[219.5,125.0],[218.5,127.0],[214.0,131.5],[192.0,133.5],[185.0,136.5],[184.0,138.5],[177.0,142.5],[161.0,143.5],[157.0,141.5],[152.0,141.5],[144.0,137.5],[141.0,137.5],[134.0,140.5],[131.0,140.5],[102.0,149.5],[99.5,144.0],[100.5,141.0],[99.0,138.5],[96.0,137.5],[67.0,145.5],[62.0,142.5],[57.0,142.5],[51.0,144.5],[46.0,144.5],[38.0,147.5],[20.0,149.5],[12.0,152.5],[7.0,152.5],[0.0,155.12],[0.0,124.5],[2.5,132.0],[7.0,133.5],[37.0,120.5],[45.0,118.5],[88.0,101.5],[104.0,96.5],[113.5,127.0],[117.0,129.5],[121.0,128.5],[123.5,127.0],[124.5,122.0],[117.5,99.0],[113.0,92.5],[115.0,93.5],[120.0,91.5],[127.0,91.5],[128.0,90.5],[135.0,90.5],[136.0,89.5],[143.0,89.5],[144.0,88.5],[151.0,88.5],[152.0,87.5],[159.0,87.5],[168.0,85.5],[172.0,83.5],[183.0,81.5],[187.0,79.5],[222.0,70.5],[224.5,69.0],[225.5,64.0],[222.5,55.0],[218.5,52.0],[220.5,48.0],[216.5,44.0],[215.5,41.0],[216.5,36.0],[210.5,19.0],[207.0,15.5],[192.0,18.5],[147.0,32.5],[136.0,34.5],[129.0,37.5],[122.0,38.5],[111.0,42.5],[78.0,50.5],[67.0,54.5],[46.0,59.5],[40.0,62.5],[37.0,62.5],[33.0,64.5],[31.5,68.0],[33.5,72.0],[34.5,79.0],[36.5,83.0],[38.5,84.0],[30.0,87.5],[27.5,85.0],[27.5,81.0],[24.0,74.5],[22.0,73.5],[15.0,74.5],[10.0,69.5],[4.0,71.5],[2.5,74.0],[3.5,76.0],[0.0,78.39],[0.0,47.9],[0.5,50.0],[4.0,52.5],[8.0,51.5],[9.0,53.5],[12.0,54.5],[15.0,57.5],[24.0,54.5],[25.5,52.0],[25.0,48.5],[27.0,49.5],[28.0,48.5],[29.0,50.5],[33.0,52.5],[36.0,50.5],[38.0,51.5],[41.0,48.5],[45.0,51.5],[52.0,50.5],[56.0,48.5],[71.0,45.5],[115.0,32.5],[119.0,32.5],[126.0,29.5],[133.0,28.5],[203.0,7.5],[210.0,7.5],[215.5,11.0],[228.5,50.0],[231.0,53.5],[234.0,54.5],[250.0,49.41],[250.0,59.08],[236.0,63.5],[232.5,75.0],[226.5,79.0],[231.0,77.5],[250.0,72.18],[250.0,83.07],[249.0,83.5]],"bridge":false},{"poly":[[231.0,77.5],[226.5,79.0],[232.5,75.0],[236.0,63.5],[250.0,59.08],[250.0,72.18],[231.0,77.5]],"bridge":false},{"poly":[[150.0,129.5],[141.0,127.5],[133.5,130.0],[134.5,122.0],[128.5,104.0],[129.0,100.5],[159.0,97.5],[196.5,88.0],[184.5,97.0],[181.5,105.0],[182.5,106.0],[177.0,116.5],[160.0,121.5],[154.0,124.5],[150.0,129.5]],"bridge":false},{"poly":[[57.0,132.5],[38.0,137.5],[13.5,141.0],[95.0,109.5],[98.5,110.0],[102.5,127.0],[104.5,130.0],[96.0,127.5],[70.0,134.5],[57.0,132.5]],"bridge":false},{"poly":[[15.0,40.5],[16.0,41.5],[19.0,39.5],[21.5,41.0],[16.0,43.5],[15.0,45.5],[10.5,44.0],[15.0,40.5]],"bridge":false},{"poly":[[80.0,81.5],[88.0,79.5],[93.0,75.5],[96.5,80.0],[93.5,82.0],[92.5,84.0],[93.5,86.0],[84.0,88.5],[80.0,91.5],[76.5,80.0],[80.0,81.5]],"bridge":false},{"poly":[[236.0,97.5],[240.0,97.5],[250.0,93.86],[250.0,97.0],[242.0,98.5],[239.0,100.5],[231.5,100.0],[236.0,97.5]],"bridge":false}],"centerlines":[[[102.0,100.0],[92.0,121.0]],[[108.0,136.0],[102.0,128.0Line truncated