test(simulation): regenerate believability golden — deliberate T-1162 output change

The octave extension changes derived window output by design (coast
crinkle below 16384m, voxel relief at Quarter, vegetation moisture
perturbation) — this regen records the sanctioned new baseline per the
ticket's part (d) discipline. The pre-existing BELIEVABILITY_STRICT=1
'vegetation present' advisory failure predates this change (Q-123-
tracked debt) and is unaffected.

Tickets: T-1162

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

server/tests/golden/believability.json

@@ -6,9 +6,9 @@
     "voxel_sampled_districts": 64,
     "contrast": {
       "moisture_q": {
-        "min": 31,
-        "max": 80,
-        "distinct": 48
+        "min": 16,
+        "max": 97,
+        "distinct": 74
       },
       "elev_q": {
         "min": 0,
@@ -17,18 +17,18 @@
       },
       "slope_q": {
         "min": 0,
-        "max": 30,
-        "distinct": 30
+        "max": 31,
+        "distinct": 31
       },
       "ocean_fraction_q": {
         "min": 0,
         "max": 100,
-        "distinct": 44
+        "distinct": 42
       },
       "morphology_zones": 9,
       "vegetation_classes": 4,
       "terrain_materials": 4,
-      "voxel_relief_m": 24,
+      "voxel_relief_m": 27,
       "micro_habitat_distinct": 2
     },
     "coherence": {
@@ -37,7 +37,7 @@
       "drainage_samples": 0,
       "drainage_monotonic": 0,
       "vegetation_samples": 64,
-      "vegetated_districts": 7
+      "vegetated_districts": 5
     }
   },
   {
@@ -48,8 +48,8 @@
     "contrast": {
       "moisture_q": {
         "min": 0,
-        "max": 20,
-        "distinct": 20
+        "max": 24,
+        "distinct": 25
       },
       "elev_q": {
         "min": 0,
@@ -59,12 +59,12 @@
       "slope_q": {
         "min": 0,
         "max": 15,
-        "distinct": 14
+        "distinct": 15
       },
       "ocean_fraction_q": {
         "min": 0,
         "max": 100,
-        "distinct": 38
+        "distinct": 36
       },
       "morphology_zones": 6,
       "vegetation_classes": 2,