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_0_3.json

@@ -0,0 +1 @@
+{"chunk":[0,3],"origin":[-1000,-1750],"land":[[[2.0,0.0],[250.0,0.0],[250.0,250.0],[2.0,250.0],[2.0,0.0]]],"surfaces":[{"poly":[[108.0,19.5],[87.56,0.0],[132.62,0.0],[108.0,19.5]],"kind":"urban"},{"poly":[[1.57,0.0],[63.08,0.0],[94.5,32.0],[72.5,54.0],[69.0,62.5],[64.0,63.5],[62.0,67.5],[56.5,67.0],[57.5,72.0],[53.5,73.0],[22.5,109.0],[2.0,128.5],[1.57,0.0]],"kind":"urban"},{"poly":[[26.0,142.5],[21.5,137.0],[22.5,134.0],[68.5,87.0],[78.5,74.0],[84.5,70.0],[83.5,65.0],[86.0,63.5],[90.5,64.0],[87.5,71.0],[96.0,78.5],[107.5,66.0],[105.5,64.0],[109.0,64.5],[113.5,59.0],[116.0,52.5],[136.0,73.5],[148.0,63.5],[157.0,63.5],[165.5,69.0],[168.0,76.5],[166.5,69.0],[161.0,63.5],[156.0,61.5],[146.0,62.5],[140.5,58.0],[137.5,53.0],[147.5,42.0],[134.0,25.5],[124.5,33.0],[125.0,39.5],[119.5,34.0],[161.37,0.0],[237.53,0.0],[245.5,9.0],[250.0,12.21],[250.0,24.86],[187.0,80.5],[175.0,93.5],[167.5,86.0],[168.0,79.5],[165.5,87.0],[157.0,92.5],[147.0,93.5],[140.0,88.5],[135.5,93.0],[131.5,100.0],[143.0,110.5],[153.5,100.0],[149.0,94.5],[157.0,94.5],[164.5,104.0],[154.5,115.0],[153.5,119.0],[145.5,123.0],[146.5,128.0],[139.5,132.0],[137.5,140.0],[124.0,148.5],[88.0,189.5],[26.0,142.5]],"kind":"urban"},{"poly":[[226.5,149.0],[188.5,107.0],[221.0,74.5],[250.0,49.73],[250.0,150.12],[239.0,159.5],[226.5,149.0]],"kind":"urban"},{"poly":[[122.0,217.5],[117.0,215.5],[102.5,201.0],[164.0,132.5],[169.0,133.5],[171.0,131.5],[173.5,134.0],[168.5,139.0],[176.0,143.5],[180.0,149.5],[188.5,143.0],[190.5,138.0],[182.0,132.5],[179.0,127.5],[174.0,132.5],[165.5,128.0],[175.0,127.5],[171.5,123.0],[178.0,118.5],[226.5,170.0],[188.5,212.0],[185.0,211.5],[181.5,215.0],[182.5,218.0],[155.0,245.5],[122.0,217.5]],"kind":"urban"},{"poly":[[247.5,173.0],[250.0,170.85],[250.0,175.95],[247.5,173.0]],"kind":"urban"},{"poly":[[80.0,247.5],[61.0,232.5],[49.0,247.5],[2.0,247.5],[1.5,157.0],[8.0,149.5],[80.5,208.0],[69.0,200.5],[53.5,217.0],[53.5,220.0],[64.0,228.5],[70.0,223.5],[79.0,230.5],[89.5,218.0],[85.5,213.0],[87.0,212.5],[122.0,239.5],[129.0,247.5],[80.0,247.5]],"kind":"urban"},{"poly":[[242.0,218.5],[232.0,228.5],[227.0,230.5],[227.5,234.0],[222.5,238.0],[220.5,242.0],[226.0,247.5],[208.0,247.5],[208.5,245.0],[197.0,234.5],[187.0,247.5],[175.5,247.0],[236.0,182.5],[250.0,199.67],[250.0,225.74],[242.0,218.5]],"kind":"urban"}],"roads":[{"poly":[[131.0,246.5],[128.0,245.5],[126.0,242.5],[121.0,239.5],[109.0,228.5],[89.0,213.5],[85.0,212.5],[83.5,209.0],[74.0,201.5],[72.0,200.5],[70.0,201.5],[68.5,197.0],[64.0,192.5],[50.0,181.5],[47.0,180.5],[39.0,172.5],[14.0,152.5],[9.0,149.5],[4.0,152.5],[1.0,157.5],[0.0,157.17],[0.0,143.68],[5.0,140.5],[12.5,140.0],[12.0,134.5],[8.0,138.5],[0.0,140.85],[0.0,131.5],[39.5,92.0],[42.5,87.0],[53.5,77.0],[54.5,74.0],[58.5,72.0],[59.5,68.0],[64.0,63.5],[68.0,62.5],[70.5,60.0],[74.5,53.0],[81.5,47.0],[94.5,31.0],[93.5,28.0],[64.39,0.0],[85.5,0.0],[90.0,4.5],[108.0,19.5],[127.0,4.5],[133.0,1.5],[134.12,0.0],[161.27,0.0],[141.0,15.5],[131.5,24.0],[130.0,27.5],[128.0,26.5],[126.0,27.5],[122.5,32.0],[123.5,35.0],[125.5,36.0],[126.5,43.0],[130.0,46.5],[132.0,47.5],[133.0,46.5],[137.5,51.0],[136.5,53.0],[137.5,55.0],[144.0,61.5],[146.0,62.5],[154.0,61.5],[161.5,65.0],[160.0,65.5],[157.0,63.5],[154.5,65.0],[153.5,67.0],[156.5,70.0],[155.5,72.0],[157.5,76.0],[154.5,78.0],[153.0,81.5],[150.5,79.0],[151.5,78.0],[150.5,76.0],[146.5,72.0],[150.0,70.5],[151.5,68.0],[150.0,64.5],[148.0,63.5],[145.0,64.5],[139.5,69.0],[137.0,74.5],[134.5,70.0],[120.0,55.5],[118.0,54.5],[114.0,57.5],[113.5,53.0],[108.0,49.5],[99.5,57.0],[98.5,59.0],[99.5,60.0],[99.0,62.5],[95.0,60.5],[91.5,62.0],[90.5,64.0],[92.5,67.0],[90.5,70.0],[91.0,71.5],[85.0,68.5],[83.0,69.5],[55.5,100.0],[44.5,110.0],[22.5,134.0],[21.5,136.0],[22.5,139.0],[30.0,144.5],[33.0,148.5],[36.0,149.5],[38.0,152.5],[43.0,155.5],[49.0,161.5],[56.0,165.5],[59.0,169.5],[63.0,171.5],[68.0,176.5],[71.0,177.5],[84.0,188.5],[87.5,189.0],[98.5,179.0],[119.5,156.0],[124.0,148.5],[129.0,146.5],[133.0,142.5],[136.5,141.0],[138.5,134.0],[145.5,128.0],[146.5,125.0],[153.5,119.0],[155.5,115.0],[162.5,108.0],[164.5,103.0],[158.0,95.5],[156.0,94.5],[154.0,95.5],[152.5,98.0],[153.5,100.0],[149.0,104.5],[148.5,103.0],[150.5,100.0],[149.5,98.0],[142.0,91.5],[137.5,93.0],[139.5,88.0],[147.0,92.5],[155.0,93.5],[160.0,91.5],[165.5,86.0],[167.0,81.5],[168.5,88.0],[173.0,92.5],[175.0,93.5],[179.0,91.5],[185.0,83.5],[198.0,73.5],[203.0,67.5],[208.0,64.5],[223.0,49.5],[228.0,46.5],[233.0,40.5],[237.0,38.5],[250.0,25.5],[250.0,48.81],[231.0,66.5],[225.0,70.5],[222.0,74.5],[217.0,77.5],[210.0,85.5],[196.0,96.5],[194.5,100.0],[187.5,107.0],[192.5,114.0],[200.5,121.0],[231.5,155.0],[236.0,159.5],[238.5,160.0],[250.0,150.45],[250.0,170.5],[247.5,173.0],[250.0,176.27],[250.0,197.6],[245.5,192.0],[236.0,182.5],[229.5,188.0],[216.5,203.0],[171.31,250.0],[133.62,250.0],[131.0,246.5]],"bridge":false},{"poly":[[238.5,0.0],[250.0,0.0],[250.0,11.5],[238.5,0.0]],"bridge":false},{"poly":[[12.0,134.5],[12.5,140.0],[5.0,140.5],[0.Line truncated