feat(front): unify all front user pages to DESIGN.md brand #5B5FED; fix decimal-rgba off-brand purples missed by hex normalization (MarketPage focus shadow, LoginPage radial glow)

frontend/src/pages/front/PricingPage.css

@@ -156,7 +156,7 @@
 }
 
 .pricing-plan--popular {
-  border-color: #F59E0B;
+  border-color: #E8922C;
 }
 
 /* Popular Ribbon */
@@ -164,7 +164,7 @@
   position: absolute;
   top: 16px;
   right: -32px;
-  background: linear-gradient(135deg, #F59E0B, #EF4444);
+  background: linear-gradient(135deg, #E8922C, #D9383A);
   color: #FFFFFF;
   font-size: 11px;
   font-weight: 700;
@@ -930,7 +930,7 @@
 }
 
 .pricing-modal-form-group label .required {
-  color: #EF4444;
+  color: #D9383A;
 }
 
 .pricing-modal-form-group input,