config: test without terrain edge skirt

config.js

@@ -455,7 +455,7 @@ window.CONFIG = {
         // terrain: false          // completely disable the 3D ground
         exaggeration: 8,          // vertical scale (1 = real, nearly invisible here)
         edgeFadeTiles: 4,         // soft rim at the mosaic border, in tiles (~13 km)
-        edgeSkirtKm: 800,         // coarse outer terrain pulled past the horizon
+        edgeSkirtKm: 0,           // test: no outer skirt ring
         edgeSkirtRings: 24,       // coarse rings in the outer skirt
         edgeSkirtNoise: 0.28,     // fallback height variation if outer DEM is off
         outerDem: {