Tasks: split T41 into view, layers and world

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tasks/ch31-43.md

@@ -288,20 +288,26 @@
 - [ ] ScreenReaderOnly — blocked: no accessibility tree
 - [x] ColorBlindSafe Palette → `Theme::set_color_blind_safe`: chart hues fitted to stay apart under Machado's simulated protanopia, deuteranopia and tritanopia, each 3:1 on its page
 
-## T41 Maps — `src/maps`
+## T41a Maps · View — `src/maps`
 
 - [ ] MapView — host tiles
 - [ ] MapMarker
 - [ ] MapPopup
+- [ ] LocationPicker
+- [ ] CoordinateDisplay
+
+## T41b Maps · Layers
+
 - [ ] MapCluster
 - [ ] RouteLine
 - [ ] GeoJSON Layer
-- [ ] ChoroplethMap
-- [ ] LocationPicker
-- [ ] CoordinateDisplay
-- [ ] WorldMap (from T34)
 - [ ] GeoHeatmap (from T34)
 
+## T41c Maps · World
+
+- [ ] ChoroplethMap
+- [ ] WorldMap (from T34)
+
 ## T42 Misc — `src/misc`
 
 - [ ] Clock / WorldClock