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_2.json

@@ -0,0 +1 @@
+{"chunk":[4,2],"origin":[0,-2000],"land":[[[248.0,57.5],[220.0,59.5],[157.0,59.5],[124.0,61.5],[47.0,62.5],[40.0,61.5],[36.0,58.5],[14.0,59.5],[7.5,65.0],[6.5,71.0],[3.5,75.0],[0.0,78.22],[0.0,0.0],[250.0,0.0],[250.0,57.5],[248.0,57.5]],[[57.0,245.5],[72.0,232.5],[79.0,232.5],[82.5,237.0],[82.5,241.0],[78.45,250.0],[46.71,250.0],[57.0,245.5]]],"surfaces":[{"poly":[[157.0,3.5],[154.5,2.0],[154.5,0.0],[219.5,0.0],[222.0,1.5],[222.25,0.0],[223.9,0.0],[224.0,0.5],[244.0,1.5],[247.0,1.5],[247.6,0.0],[250.0,0.0],[250.0,2.68],[157.0,3.5]],"kind":"sand"},{"poly":[[64.5,246.0],[72.0,239.5],[74.0,239.5],[75.5,243.0],[71.5,250.0],[67.7,250.0],[64.5,246.0]],"kind":"sand"},{"poly":[[1.5,12.0],[26.0,16.5],[25.0,19.5],[19.0,16.5],[12.0,17.5],[11.0,14.5],[4.5,15.0],[9.5,19.0],[9.5,23.0],[4.5,24.0],[4.5,43.0],[7.0,43.5],[8.0,40.5],[11.0,42.5],[32.5,41.0],[26.0,43.5],[2.0,45.5],[1.5,12.0]],"kind":"urban"},{"poly":[[1.5,69.0],[2.0,59.5],[31.5,57.0],[25.0,59.5],[11.0,59.5],[8.0,64.5],[2.5,65.0],[6.5,69.0],[5.0,72.5],[1.5,69.0]],"kind":"urban"}],"roads":[{"poly":[[142.0,11.5],[167.0,20.5],[250.0,19.56],[250.0,28.63],[167.0,30.5],[148.0,24.5],[131.0,16.5],[128.5,26.0],[122.0,30.5],[117.0,31.5],[96.5,26.0],[99.5,34.0],[98.0,40.5],[200.0,36.5],[232.0,37.5],[250.0,36.58],[250.0,46.5],[233.0,46.5],[232.0,47.5],[200.0,46.5],[199.0,47.5],[173.0,47.5],[172.0,48.5],[136.0,48.5],[135.0,49.5],[83.0,50.5],[76.0,52.5],[60.0,52.5],[53.0,54.5],[42.0,54.5],[33.0,56.5],[21.0,56.5],[20.0,57.5],[10.0,57.5],[1.0,59.5],[0.0,59.55],[0.0,45.5],[15.0,44.5],[16.0,43.5],[26.0,43.5],[27.0,42.5],[30.0,43.5],[35.0,41.5],[47.0,41.5],[48.0,40.5],[55.0,40.5],[64.0,38.5],[86.0,37.5],[89.5,34.0],[88.0,31.5],[84.0,29.5],[73.0,28.5],[69.0,26.5],[60.0,25.5],[36.0,19.5],[33.0,17.5],[22.0,15.5],[18.0,13.5],[0.0,10.8],[0.0,0.0],[31.0,0.0],[32.0,0.5],[37.0,0.5],[50.0,5.5],[56.0,5.5],[75.0,11.5],[89.0,13.5],[112.0,20.5],[118.5,21.0],[121.5,18.0],[120.0,15.5],[92.0,1.5],[90.0,1.5],[89.25,0.0],[120.64,0.0],[142.0,11.5]],"bridge":false},{"poly":[[232.0,37.5],[200.0,36.5],[98.0,40.5],[99.5,34.0],[96.5,26.0],[117.0,31.5],[122.0,30.5],[128.5,26.0],[131.0,16.5],[148.0,24.5],[167.0,30.5],[250.0,28.63],[250.0,36.58],[232.0,37.5]],"bridge":false},{"poly":[[247.0,1.5],[241.0,0.5],[240.94,0.0],[247.75,0.0],[247.0,1.5]],"bridge":false}],"centerlines":[[[-11.0,51.0],[3.0,52.0],[93.0,44.0],[103.0,35.0]],[[-22.0,-1.0],[20.0,5.0],[42.0,12.0],[90.0,22.0],[95.0,24.0],[103.0,34.0]],[[13.0,-42.0],[22.0,-41.0],[54.0,-27.0],[125.0,10.0],[137.0,31.0]],[[137.0,32.0],[132.0,35.0],[104.0,35.0]],[[138.0,32.0],[149.0,34.0],[257.0,33.0],[489.0,27.0]],[[183.0,1.0],[161.0,1.0]]],"buildings":[{"poly":[[36.5,0.0],[32.0,0.5],[28.0,-1.5],[23.5,-2.0],[31.0,-3.5],[32.0,-2.5],[35.0,-2.5],[36.5,0.0]],"height":8.8,"source":"district","speculative":false},{"poly":[[42.0,2.5],[38.0,1.5],[37.5,0.0],[39.0,-1.5],[40.0,-1.5],[42.5,1.0],[42.0,2.5]],"height":7.7,"source":"district","speculative":false},{"poly":[[1.0,45.5],[-2.0,45.5],[-2.5,42.0],[-3.5,41.0],[-2.5,37.0],[-1.5,36.0],[-1.5,32.0],[-2.5,31.0],[-2.5,28.0],[-3.5,27.0],[-2.5,25.0],[-2.0,10.5],[3.5,11.0],[1.5,12.0],[1.0,45.5]],"height":8.0,"source":"district","speculative":false},{"poly":[[10.0,19.5],[6.0,15.5],[4.5,15.0],[7.0,14.5],[8.0,15.5],[9.0,14.5],[11.0,14.5],[11.5,18.0],[10.0,19.5]],"height":8.6,"source":"district","speculative":false},{"poly":[[7.0,43.5],[4.5,43.0],[5.0,23.5],[9.5,24.0],[9.5,38.0],[11.0,38.5],[14.5,42.0],[11.0,42.5],[9.0,40.5],[8.0,40.5],[7.0,43.5]],"height":9.2,"source":"district","speculative":false},{"poly":[[224.0,47.5],[200.0,47.5],[199.5,47.0],[224.0,46.5],[224.0,47.5]],"height":8.4,"source":"district","speculative":false},{"poly":[[-16.0,89.5],[-19.5,89.0],[-19.5,85.0],[-17.0,84.5],[-15.0,86.5],[-14.0,82.5],[-13.0,82.5],[-12.0,84.5],[-11.0,81.5],[-9.0,81.5],[-8.0,82.5],[-7.5,82.0],[-7.5,79.0],[-2.5,74.0],[-2.5,60.0],[1.0,59.5],[1.5,69.0],[4.5,72.0],[3.5,76.0],[2.0,76.5],[-9.0,86.5],[-14.0,87.5],[-16.0,89.5]],"height":11.3,"source":"district","speculative":false},{"poly":[[7.0,68.5],[5.0,68.5],[2.5,66.0],[2.5,65.0],[7.0,64.5],[7.0,68.5]],"height":7.3,"source":"district","speculative":false}],"palms":[[90.19,3.13],[100.83,8.68],[111.47,14.23],[136.39,5.74],[117.77,17.51],[167.67,17.83],[179.67,17.72],[179.97,49.71],[191.67,17.6],[191.97,49.6],[203.67,17.49],[215.67,17.38],[227.67,17.27],[239.67,17.16],[239.96,49.16],[177.0,7.0],[165.0,7.0]]}