fix(visual): 1:1 banner/hero/modal + strip non-zibll card chrome

Align banner s-desc caption/scale-height, hero search pill and -40px cards, modal colorful header/spring scale; remove white/pink card borders and hover lifts across mainline surfaces.

assets/css/routes/friends.css

@@ -28,7 +28,7 @@
 .friend-card:hover {
     box-shadow: var(--shadow);
     border-color: var(--color-primary-soft);
-    transform: translateY(-2px);
+    transform: none;
 }
 
 .friend-card__avatar {