frontend error management enhancement

app/templates/shop/errors/generic.html

@@ -0,0 +1,31 @@
+{% extends "shop/errors/base.html" %}
+
+{% block icon %}⚠️{% endblock %}
+
+{% block title %}{{ status_code }} - {{ status_name }}{% endblock %}
+
+{% block content %}
+{% if vendor and theme and theme.branding and theme.branding.logo %}
+<img src="{{ theme.branding.logo }}" alt="{{ vendor.name }}" class="vendor-logo">
+{% endif %}
+
+<div class="error-icon">⚠️</div>
+<div class="status-code">{{ status_code }}</div>
+<div class="status-name">{{ status_name }}</div>
+<div class="error-message">{{ message }}</div>
+
+<div class="action-buttons">
+    <a href="/" class="btn btn-primary">Continue Shopping</a>
+    <a href="javascript:history.back()" class="btn btn-secondary">Go Back</a>
+</div>
+
+<div class="support-link">
+    Need assistance? <a href="/contact">Contact us</a>
+</div>
+
+{% if vendor %}
+<div class="vendor-info">
+    {{ vendor.name }}
+</div>
+{% endif %}
+{% endblock %}