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_2_1.json

@@ -0,0 +1 @@
+{"chunk":[2,1],"origin":[-500,-2250],"land":[[[0.0,250.0],[0.0,0.0],[250.0,0.0],[250.0,250.0],[0.0,250.0]]],"surfaces":[{"poly":[[240.0,218.5],[196.0,213.5],[148.0,204.5],[76.0,182.5],[52.0,165.5],[38.5,148.0],[28.5,129.0],[16.5,83.0],[9.54,0.0],[233.96,0.0],[234.0,2.5],[250.0,1.98],[250.0,20.5],[236.0,20.5],[235.0,22.5],[226.0,20.5],[225.5,42.0],[219.0,44.5],[217.0,41.5],[214.0,43.5],[211.0,41.5],[208.5,44.0],[208.5,53.0],[212.0,56.5],[220.0,53.5],[226.0,56.5],[227.0,53.5],[230.5,58.0],[226.0,61.5],[217.0,58.5],[214.5,61.0],[215.5,67.0],[213.5,70.0],[217.0,73.5],[219.0,71.5],[223.0,73.5],[226.5,70.0],[227.5,81.0],[225.5,84.0],[229.5,86.0],[228.5,95.0],[232.5,96.0],[228.5,107.0],[250.0,108.95],[250.0,153.53],[216.5,153.0],[216.5,181.0],[223.0,186.5],[250.0,186.85],[250.0,190.08],[216.0,189.5],[212.5,187.0],[212.5,117.0],[196.5,117.0],[196.0,211.5],[212.0,212.5],[213.0,202.5],[250.0,203.5],[250.0,222.62],[240.0,218.5]],"kind":"urban"},{"poly":[[234.0,84.5],[233.5,74.0],[237.0,73.5],[235.5,71.0],[243.0,65.5],[245.5,66.0],[243.5,73.0],[247.0,73.5],[247.5,66.0],[250.0,64.5],[250.0,69.3],[248.5,72.0],[250.0,72.09],[250.0,86.38],[234.0,84.5]],"kind":"urban"},{"poly":[[1.5,227.0],[1.5,194.0],[9.5,169.0],[13.0,123.5],[22.5,148.0],[38.5,171.0],[61.0,189.5],[88.5,200.0],[50.0,206.5],[15.0,221.5],[13.0,219.5],[4.0,219.5],[4.5,226.0],[9.5,225.0],[5.5,229.0],[15.0,236.5],[1.5,227.0]],"kind":"urban"},{"poly":[[34.0,244.5],[15.5,237.0],[42.0,223.5],[78.0,214.5],[131.0,216.5],[159.5,222.0],[56.0,220.5],[34.0,228.5],[19.5,237.0],[50.0,247.5],[34.0,244.5]],"kind":"urban"}],"roads":[{"poly":[[0.5,11.0],[0.0,5.56],[0.0,0.0],[9.5,0.0],[9.5,6.0],[10.5,7.0],[10.5,19.0],[11.5,20.0],[11.5,33.0],[12.5,34.0],[15.5,81.0],[26.5,126.0],[36.5,146.0],[49.5,164.0],[59.0,172.5],[73.0,181.5],[80.0,184.5],[86.0,185.5],[89.0,187.5],[96.0,188.5],[145.0,204.5],[171.0,208.5],[193.0,213.5],[196.5,210.0],[197.5,174.0],[195.5,171.0],[196.5,170.0],[196.5,154.0],[197.5,153.0],[197.5,119.0],[199.0,117.5],[211.5,117.0],[212.5,167.0],[214.0,169.5],[217.5,170.0],[217.5,178.0],[216.0,177.5],[213.5,179.0],[212.5,186.0],[216.0,189.5],[221.0,190.5],[223.0,189.5],[235.0,189.5],[239.0,185.5],[243.0,185.5],[243.5,189.0],[246.0,190.5],[250.0,190.5],[250.0,203.39],[216.0,202.5],[213.5,204.0],[212.5,210.0],[210.5,213.0],[214.0,216.5],[236.0,218.5],[250.0,223.66],[250.0,233.66],[236.0,228.5],[210.0,225.5],[206.0,223.5],[203.0,219.5],[193.0,223.5],[149.0,214.5],[146.5,215.0],[148.5,220.0],[145.5,228.0],[143.0,230.5],[135.0,233.5],[84.0,232.5],[69.0,230.5],[62.5,226.0],[59.5,218.0],[60.0,214.5],[39.0,221.5],[19.0,231.5],[14.0,232.5],[1.0,229.5],[0.0,229.0],[0.0,205.25],[0.5,207.0],[0.5,214.0],[2.5,219.0],[5.0,220.5],[11.0,220.5],[14.0,222.5],[43.0,209.5],[60.0,204.5],[77.0,202.5],[80.5,199.0],[79.0,196.5],[70.0,193.5],[52.0,182.5],[43.0,174.5],[30.5,159.0],[23.5,148.0],[19.5,139.0],[15.0,134.5],[11.5,138.0],[9.5,166.0],[7.5,170.0],[4.5,185.0],[1.5,191.0],[1.5,195.0],[0.0,195.75],[0.0,116.25],[1.5,78.0],[0.5,77.0],[0.5,66.0],[0.0,65.5],[0.0,10.88],[0.5,11.0]],"bridge":false},{"poly":[[9.0,248.5],[7.5,250.0],[0.0,250.0],[0.0,242.5],[1.0,241.5],[9.0,238.5],[29.0,246.5],[41.6,250.0],[11.5,250.0],[9.0,248.5]],"bridge":false},{"poly":[[250.0,244.95],[250.0,250.0],[236.12,250.0],[250.0,244.95]],"bridge":false},{"poly":[[0.5,11.0],[0.0,10.88],[0.0,5.56],[0.5,11.0]],"bridge":false},{"poly":[[1.0,229.5],[14.0,232.5],[19.0,231.5],[39.0,221.5],[60.0,214.5],[59.5,218.0],[62.5,226.0],[69.0,230.5],[84.0,232.5],[135.0,233.5],[143.0,230.5],[145.5,228.0],[148.5,220.0],[146.5,215.0],[149.0,214.5],[193.0,223.5],[203.0,219.5],[206.0,223.5],[210.0,225.5],[236.0,228.5],[250.0,233.66],[250.0,244.95],[236.12,250.0],[41.6,250.0],[29.0,246.5],[9.0,238.5],[1.0,241.5],[0.0,242.5],[0.0,229.0],[1.0,229.5]],"bridge":false},{"poly":[[89.5,198.0],[92.0,197.5],[110.5,204.0],[90.0,203.5],[89.5,198.0]],"bridge":false},{"poly":[[11.0,102.5],[16.5,125.0],[10.5,126.0],[9.5,109.0],[11.0,102.5]],"bridge":false},{"poly":[[234.85,0.0],[240.5,0.0],[244.0,0.5],[247.0,1.5],[247.0,2.5],[235.0,2.5],[234.85,0.0]],"bridge":false},{"poly":[[248.5,1.0],[250.0,0.97],[250.0,2.5],[249.0,2.5],[248.5,1.0]],"bridge":false},{"poly":[[246.0,108.5],[245.0,107.5],[243.0,108.5],[234.0,108.5],[229.5,107.0],[231.5,104.0],[231.5,98.0],[228.5,95.0],[229.5,94.0],[228.5,90.0],[229.5,86.0],[226.5,83.0],[227.5,82.0],[227.5,76.0],[224.0,72.5],[223.0,73.5],[222.0,72.5],[217.0,73.5],[213.5,70.0],[215.5,67.0],[214.5,65.0],[215.5,60.0],[208.5,53.0],[209.5,52.0],[208.5,44.0],[211.0,41.5],[214.0,42.5],[217.0,41.5],[220.0,43.5],[225.5,40.0],[226.5,38.0],[226.5,26.0],[228.0,21.5],[234.0,21.5],[235.0,22.5],[239.0,21.5],[250.0,22.42],[250.0,54.5],[248.5,53.0],[244.5,43.0],[245.5,32.0],[237.0,32.5],[233.5,46.0],[230.0,49.5],[222.5,53.0],[225.5,60.0],[224.5,63.0],[230.0,64.5],[234.0,59.5],[242.0,56.5],[250.0,59.5],[250.0,73.5],[249.0,72.5],[244.0,73.5],[245.5,70.0],[242.0,66.5],[238.5,69.0],[237.5,73.0],[233.5,77.0],[234.5,84.0],[239.0,86.5],[240.0,8Line truncated