Revert "config: lower cloud deck and reduce near fade"

This reverts commit 1381b90e73.

config.js

@@ -329,11 +329,11 @@ window.CONFIG = {
     // altitude so aircraft fly above the deck.
     clouds: {
         enabled: true,            // false removes the volumetric cloud deck
-        top: 0.25,                // ~3.2 km; lower deck pushes the cloud horizon outward
+        top: 0.78,                // ~10.1 km, lower deck keeps camera clearance
         bottom: -0.2,             // ~-2.6 km (deck base slightly below terrain)
         nearFade: {
-            start: 0.05,          // world units: clouds fade out very close to camera
-            end: 0.6              // full density from this distance onward
+            start: 0.35,          // world units: clouds fade out very close to camera
+            end: 2.5              // full density from this distance onward
         },
         // Maximum raymarch length through the cloud deck, in world units.
         // Too small creates a hard cloud-deck edge/ring near the horizon.