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_10_9.json

@@ -0,0 +1 @@
+{"chunk":[10,9],"origin":[1500,-250],"land":[[[0.0,250.0],[0.0,0.0],[250.0,0.0],[250.0,250.0],[0.0,250.0]]],"surfaces":[{"poly":[[45.5,20.0],[45.5,16.0],[48.28,0.0],[77.72,0.0],[78.5,1.0],[79.5,7.0],[75.5,15.0],[88.0,11.5],[90.0,14.5],[95.0,9.5],[103.0,7.5],[153.0,4.5],[175.0,5.5],[184.0,2.5],[183.5,0.0],[212.13,0.0],[212.5,3.0],[211.0,5.5],[45.5,20.0]],"kind":"urban"},{"poly":[[236.0,2.5],[235.17,0.0],[250.0,0.0],[250.0,0.94],[236.0,2.5]],"kind":"urban"},{"poly":[[1.5,24.0],[1.5,0.0],[32.87,0.0],[29.5,21.0],[1.5,24.0]],"kind":"urban"},{"poly":[[248.5,96.0],[237.5,35.0],[239.0,31.5],[250.0,30.57],[250.0,40.15],[247.0,40.5],[250.0,84.64],[250.0,96.02],[248.5,96.0]],"kind":"urban"},{"poly":[[233.0,247.5],[232.0,243.5],[196.0,243.5],[195.0,247.5],[192.0,247.5],[191.0,243.5],[183.0,243.5],[182.0,247.5],[176.0,243.5],[168.0,243.5],[163.0,247.5],[156.0,243.5],[144.0,244.5],[142.5,243.0],[150.5,237.0],[152.5,228.0],[143.0,227.5],[140.0,233.5],[134.0,233.5],[131.5,230.0],[131.5,217.0],[134.0,213.5],[140.0,213.5],[143.0,220.5],[152.5,220.0],[150.5,210.0],[141.0,203.5],[127.0,206.5],[122.5,212.0],[121.0,218.5],[114.0,206.5],[101.0,203.5],[90.5,210.0],[87.5,219.0],[89.5,235.0],[96.0,241.5],[107.0,243.5],[114.0,240.5],[121.0,228.5],[124.5,238.0],[135.5,244.0],[133.0,247.5],[36.0,247.5],[27.5,219.0],[1.5,162.0],[1.5,54.0],[224.0,32.5],[250.0,182.85],[250.0,232.57],[243.5,233.0],[243.0,203.5],[233.5,204.0],[233.0,222.5],[222.0,204.5],[213.0,203.5],[212.0,237.5],[199.0,204.5],[190.5,205.0],[179.0,233.5],[164.0,233.5],[164.0,227.5],[177.5,227.0],[177.5,219.0],[164.0,218.5],[163.5,214.0],[179.0,213.5],[180.5,205.0],[154.0,203.5],[153.5,242.0],[187.0,242.5],[191.0,234.5],[200.0,234.5],[203.0,242.5],[223.0,242.5],[223.0,224.5],[234.0,242.5],[242.5,243.0],[238.0,243.5],[237.0,247.5],[233.0,247.5]],"kind":"urban"},{"poly":[[99.0,240.5],[92.5,235.0],[90.5,230.0],[90.5,216.0],[99.0,206.5],[111.0,207.5],[117.5,216.0],[118.5,226.0],[116.5,234.0],[109.0,240.5],[99.0,240.5]],"kind":"urban"},{"poly":[[130.0,239.5],[123.5,231.0],[123.5,216.0],[132.0,206.5],[142.0,206.5],[149.5,214.0],[149.0,217.5],[145.0,217.5],[140.0,210.5],[135.0,210.5],[128.5,219.0],[129.5,231.0],[133.0,235.5],[139.0,236.5],[145.0,229.5],[149.5,230.0],[148.5,235.0],[142.0,240.5],[130.0,239.5]],"kind":"urban"},{"poly":[[155.5,240.0],[156.0,206.5],[177.5,207.0],[177.0,210.5],[161.5,211.0],[162.0,220.5],[175.5,221.0],[175.0,225.5],[161.5,226.0],[161.5,236.0],[177.0,235.5],[177.0,240.5],[155.5,240.0]],"kind":"urban"},{"poly":[[205.0,240.5],[202.0,232.5],[189.0,232.5],[185.0,240.5],[179.5,240.0],[193.0,206.5],[198.5,208.0],[210.0,240.5],[205.0,240.5]],"kind":"urban"},{"poly":[[234.5,239.0],[221.0,216.5],[220.5,240.0],[214.5,240.0],[215.0,206.5],[221.5,208.0],[235.0,229.5],[235.5,207.0],[241.5,207.0],[241.0,240.5],[234.5,239.0]],"kind":"urban"},{"poly":[[1.5,241.0],[2.0,213.5],[12.5,237.0],[12.0,239.5],[1.5,241.0]],"kind":"urban"},{"poly":[[102.0,233.5],[98.5,230.0],[98.5,217.0],[102.0,213.5],[109.5,216.0],[110.5,225.0],[107.0,233.5],[102.0,233.5]],"kind":"urban"},{"poly":[[140.0,243.5],[137.83,250.0],[135.03,250.0],[140.0,243.5]],"kind":"urban"},{"poly":[[149.0,245.5],[154.0,245.5],[159.5,250.0],[155.88,250.0],[154.0,248.5],[147.5,250.0],[143.5,250.0],[149.0,245.5]],"kind":"urban"},{"poly":[[170.0,245.5],[178.0,247.5],[179.35,250.0],[175.17,250.0],[174.0,248.5],[170.0,248.5],[168.83,250.0],[164.68,250.0],[170.0,245.5]],"kind":"urban"},{"poly":[[186.0,245.5],[188.5,246.0],[188.5,250.0],[185.88,250.0],[186.0,245.5]],"kind":"urban"},{"poly":[[198.5,246.0],[201.5,246.0],[201.77,250.0],[198.28,250.0],[198.5,246.0]],"kind":"urban"},{"poly":[[205.0,248.5],[206.0,245.5],[222.5,246.0],[222.0,248.5],[215.5,249.0],[215.47,250.0],[212.5,250.0],[205.0,248.5]],"kind":"urban"},{"poly":[[227.0,245.5],[229.5,246.0],[229.71,250.0],[226.7,250.0],[227.0,245.5]],"kind":"urban"},{"poly":[[240.5,246.0],[243.5,246.0],[243.41,250.0],[239.87,250.0],[240.5,246.0]],"kind":"urban"}],"roads":[{"poly":[[14.5,243.0],[4.5,216.0],[0.0,207.0],[0.0,158.05],[0.5,159.0],[5.5,172.0],[14.5,189.0],[23.5,213.0],[26.5,218.0],[27.5,223.0],[32.5,233.0],[35.86,250.0],[12.75,250.0],[14.5,243.0]],"bridge":false},{"poly":[[235.5,2.0],[238.5,3.0],[250.0,2.01],[250.0,12.24],[238.0,13.5],[234.0,12.5],[227.5,8.0],[224.5,0.0],[235.0,0.0],[235.5,2.0]],"bridge":false},{"poly":[[241.0,30.5],[239.0,31.5],[237.5,34.0],[237.5,38.0],[240.5,50.0],[244.5,78.0],[247.0,83.5],[249.0,84.5],[250.0,83.83],[250.0,85.5],[247.5,87.0],[246.5,89.0],[247.5,92.0],[250.0,93.5],[250.0,103.5],[248.0,102.5],[247.5,106.0],[250.0,120.06],[250.0,174.5],[248.5,170.0],[248.5,165.0],[244.5,147.0],[242.5,130.0],[240.5,124.0],[233.5,78.0],[231.5,72.0],[229.5,55.0],[227.5,49.0],[226.5,38.0],[224.0,33.5],[218.0,32.5],[217.0,33.5],[185.0,35.5],[184.0,36.5],[153.0,38.5],[152.0,39.5],[143.0,39.5],[142.0,40.5],[120.0,41.5],[119.0,42.5],[88.0,44.5],[87.0,45.5],[78.0,45.5],[77.0,46.5],[66.0,46.5],[65.0,47.5],[56.0,47.5],[55.0,48.5],[45.0,48.5],[44.0,49.5],[12.0,51Line truncated