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_6_0.json

@@ -0,0 +1 @@
+{"chunk":[6,0],"origin":[500,-2500],"land":[[[4.5,246.0],[0.0,231.0],[0.0,145.43],[5.5,125.0],[8.5,116.0],[11.5,112.0],[11.5,108.0],[35.5,62.0],[50.5,38.0],[48.0,35.5],[33.0,35.5],[27.0,28.5],[21.0,35.5],[11.0,35.5],[5.0,42.5],[3.0,41.5],[0.0,36.86],[0.0,10.59],[5.0,6.5],[11.0,9.5],[13.0,8.5],[16.0,11.5],[23.0,8.5],[29.0,15.5],[35.0,8.5],[48.0,8.5],[50.0,10.5],[53.0,9.5],[59.0,14.5],[64.0,8.5],[69.0,9.5],[76.0,1.5],[250.0,1.5],[250.0,67.0],[241.5,50.0],[237.0,44.5],[228.0,42.5],[214.0,42.5],[210.0,43.5],[207.5,46.0],[220.5,57.0],[223.5,75.0],[226.0,77.5],[240.0,79.5],[247.5,79.0],[249.5,77.0],[250.0,72.5],[250.0,250.0],[6.98,250.0],[4.5,246.0]]],"surfaces":[{"poly":[[82.5,6.0],[86.0,1.5],[88.25,0.0],[89.5,0.0],[91.0,1.5],[91.75,0.0],[92.3,0.0],[93.5,2.0],[91.0,5.5],[86.5,8.0],[85.0,12.5],[82.5,6.0]],"kind":"sand"},{"poly":[[11.5,242.0],[11.5,236.0],[8.5,232.0],[6.5,222.0],[4.5,221.0],[5.5,217.0],[3.5,214.0],[1.5,199.0],[1.5,172.0],[3.5,166.0],[3.5,159.0],[11.5,139.0],[11.5,133.0],[18.5,113.0],[44.5,63.0],[63.0,34.5],[67.0,34.5],[68.5,36.0],[66.5,37.0],[65.5,41.0],[59.5,46.0],[59.5,51.0],[55.5,53.0],[46.5,72.0],[37.5,85.0],[36.5,90.0],[31.5,98.0],[31.5,102.0],[19.5,124.0],[14.5,141.0],[11.5,146.0],[11.5,151.0],[9.5,152.0],[4.5,180.0],[5.5,208.0],[7.5,212.0],[7.5,220.0],[11.5,224.0],[10.5,230.0],[14.5,236.0],[15.5,243.0],[21.0,250.0],[16.45,250.0],[11.5,242.0]],"kind":"sand"},{"poly":[[199.0,54.5],[195.5,50.0],[200.5,36.0],[205.0,34.5],[205.5,36.0],[199.5,42.0],[198.5,46.0],[198.5,50.0],[203.0,55.5],[199.0,54.5]],"kind":"sand"},{"poly":[[237.5,88.0],[250.0,87.6],[250.0,87.71],[237.5,88.0]],"kind":"sand"},{"poly":[[225.0,87.5],[218.0,84.5],[212.5,75.0],[211.5,60.0],[205.0,58.5],[203.5,56.0],[211.0,57.5],[213.5,60.0],[213.5,70.0],[219.0,83.5],[223.0,85.5],[237.0,87.5],[225.0,87.5]],"kind":"sand"},{"poly":[[129.0,239.5],[128.0,240.5],[127.0,238.5],[126.0,239.5],[125.0,237.5],[124.0,238.5],[123.0,236.5],[122.0,237.5],[121.0,235.5],[120.0,236.5],[119.0,234.5],[118.0,235.5],[117.0,233.5],[116.0,234.5],[115.0,232.5],[114.0,233.5],[113.0,231.5],[112.0,232.5],[111.0,230.5],[107.5,231.0],[112.0,229.5],[121.0,234.5],[122.0,233.5],[127.0,237.5],[133.0,239.5],[136.0,243.5],[129.0,239.5]],"kind":"sand"}],"roads":[{"poly":[[9.5,249.0],[6.5,243.0],[4.5,242.0],[4.5,236.0],[3.0,233.5],[0.0,232.21],[0.0,230.5],[0.5,229.0],[0.0,225.0],[0.0,150.5],[1.5,143.0],[6.5,134.0],[5.5,130.0],[9.5,120.0],[9.5,117.0],[11.5,114.0],[11.5,111.0],[14.5,108.0],[16.5,104.0],[16.5,101.0],[24.5,88.0],[27.5,80.0],[30.5,78.0],[31.5,76.0],[30.5,75.0],[32.5,73.0],[38.5,60.0],[42.5,55.0],[44.5,49.0],[49.5,44.0],[51.5,39.0],[48.0,35.5],[39.83,35.5],[41.5,33.0],[46.0,29.5],[55.0,29.5],[61.0,25.5],[70.0,25.5],[76.0,21.5],[79.5,21.0],[77.0,17.5],[70.0,20.5],[64.0,18.5],[61.5,16.0],[60.23,11.55],[61.5,11.0],[63.5,7.0],[62.5,5.0],[61.11,4.17],[61.5,3.0],[64.5,0.0],[150.5,0.0],[147.0,5.5],[144.0,2.5],[139.0,3.5],[136.0,1.5],[132.0,3.5],[128.0,2.5],[127.0,3.5],[115.0,3.5],[112.0,2.5],[109.0,5.5],[106.0,2.5],[101.0,3.5],[97.0,0.5],[96.0,1.5],[95.0,0.5],[91.0,1.5],[88.0,0.5],[84.5,3.0],[82.5,7.0],[85.5,13.0],[88.0,14.5],[94.0,8.5],[99.0,9.5],[103.0,13.5],[105.5,12.0],[109.0,6.5],[112.5,10.0],[112.5,18.0],[113.5,19.0],[112.5,22.0],[113.5,32.0],[112.5,34.0],[106.0,35.5],[102.0,32.5],[99.0,35.5],[98.0,34.5],[90.0,35.5],[86.0,34.5],[83.0,31.5],[80.0,30.5],[76.0,34.5],[71.0,34.5],[70.0,35.5],[65.0,34.5],[60.5,38.0],[44.5,63.0],[43.5,67.0],[41.5,69.0],[30.5,92.0],[18.5,113.0],[13.5,130.0],[11.5,133.0],[11.5,139.0],[8.5,144.0],[7.5,150.0],[3.5,159.0],[3.5,166.0],[1.5,172.0],[1.5,199.0],[2.5,200.0],[3.5,214.0],[5.5,217.0],[5.5,221.0],[8.5,228.0],[8.5,231.0],[11.5,236.0],[11.5,241.0],[16.5,250.0],[8.5,250.0],[9.5,249.0]],"bridge":false},{"poly":[[237.0,247.5],[232.0,249.5],[226.0,250.0],[178.7,250.0],[171.0,246.5],[153.0,231.5],[145.5,223.0],[135.5,210.0],[121.5,188.0],[120.5,185.0],[133.0,176.5],[139.0,174.5],[155.5,200.0],[163.5,210.0],[181.0,226.5],[189.0,230.5],[207.0,231.5],[225.0,227.5],[236.0,226.5],[250.0,222.12],[250.0,232.7],[207.0,241.5],[194.0,241.5],[185.0,239.5],[175.0,234.5],[168.0,228.5],[150.5,210.0],[137.5,190.0],[135.0,187.5],[133.5,188.0],[153.5,217.0],[177.0,238.5],[192.0,243.5],[207.5,243.0],[246.0,236.5],[250.0,234.96],[250.0,245.5],[237.0,247.5]],"bridge":false},{"poly":[[248.0,30.5],[243.5,34.0],[242.5,37.0],[250.0,47.83],[250.0,65.3],[246.5,59.0],[243.5,49.0],[239.0,43.5],[232.0,41.5],[223.0,41.5],[222.0,42.5],[216.0,40.5],[206.5,44.0],[205.5,46.0],[206.5,48.0],[213.0,51.5],[219.5,58.0],[220.5,62.0],[219.5,64.0],[221.5,67.0],[221.5,75.0],[223.0,77.5],[227.0,79.5],[233.0,79.5],[234.0,80.5],[236.0,79.5],[240.0,80.5],[241.0,79.5],[248.5,80.0],[250.0,78.5],[250.0,87.5],[238.0,87.5],[237.0,86.5],[223.0,85.5],[217.5,82.0],[217.5,79.0],[213.5,70.0],[214.5,67.0],[212.5,59.0],[210.0,57.5],[206.0,57.5],[198.5,50.0],[199.5,42.0],[201.5,39.0],[199.0,35.5],[197.0,34.5],[186.0,34.5],[185.0,35.5],[183.0,34.5],[182.0,35.5],[178.0,34.5],[161.0,35.5],[158.0,34.5]Line truncated