@mytec: iter5 ready for test

frontend/src/components/map/Heatmap.tsx

@@ -30,26 +30,24 @@ function rsrpToIntensity(rsrp: number): number {
 }
 
 /**
- * Calculate adaptive heatmap params based on zoom level.
+ * Calculate adaptive heatmap visual params based on zoom level.
  *
- * radius/blur: smaller at close zoom to avoid blocky squares
- * maxIntensity: lower at close zoom so densely packed points
- *   don't all saturate to a single solid color
+ * Only radius and blur change with zoom (visual quality).
+ * maxIntensity is CONSTANT at 1.0 so the same RSRP always
+ * maps to the same color regardless of zoom level.
  *
- * Zoom 6  (country): radius=35, blur=18, max=0.90
- * Zoom 10 (region):  radius=25, blur=13, max=0.70
- * Zoom 14 (city):    radius=15, blur=9,  max=0.50
- * Zoom 18 (street):  radius=8,  blur=6,  max=0.30
+ * Zoom 6  (country): radius=35, blur=18
+ * Zoom 10 (region):  radius=25, blur=13
+ * Zoom 14 (city):    radius=15, blur=9
+ * Zoom 18 (street):  radius=8,  blur=6
  */
 function getHeatmapParams(zoom: number) {
   const radius = Math.max(8, Math.min(40, 50 - zoom * 2.5));
   const blur = Math.max(6, Math.min(20, 30 - zoom * 1.5));
-  // Dynamic max: prevents saturation at close zoom
-  const maxIntensity = Math.max(0.3, Math.min(1.0, 1.2 - zoom * 0.05));
   return {
     radius: Math.round(radius),
     blur: Math.round(blur),
-    maxIntensity,
+    maxIntensity: 1.0, // CONSTANT — zoom-independent colors
   };
 }