Merge pull request 'halo effect' (#54) from pedigree-update into master

Reviewed-on: #54

client/src/components/PedigreeTree.jsx

@@ -50,11 +50,11 @@ const PedigreeTree = ({ dogId, pedigreeData, coi }) => {
 
     return (
       <g>
-        {/* Glow halo */}
+        {/* Glow halo — kept within the circle so it doesn't bleed onto text labels */}
         <circle
-          r={r + 12}
+          r={r - 4}
           fill={glowColor}
-          style={{ filter: 'blur(6px)' }}
+          style={{ filter: 'blur(4px)' }}
         />
 
         {/* Outer ring */}