feat(b2b-assistant): Implement Step 7 (Customer Journey) with tactical focus on Buying Center, Deal-Breakers, and Assets. Add restart functionality for individual steps.

b2b-marketing-assistant/components/Icons.tsx

@@ -83,3 +83,9 @@ export const XMarkIcon: React.FC<{ className?: string }> = ({ className = '' })
         <line x1="6" y1="6" x2="18" y2="18" />
     </svg>
 );
+
+export const RefreshIcon: React.FC<{ className?: string }> = ({ className = '' }) => (
+    <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" strokeWidth={1.5} stroke="currentColor" className={`h-6 w-6 ${className}`}>
+        <path strokeLinecap="round" strokeLinejoin="round" d="M16.023 9.348h4.992v-.001M2.985 19.644v-4.992m0 0h4.992m-4.993 0l3.181 3.183a8.25 8.25 0 0013.803-3.7M4.031 9.865a8.25 8.25 0 0113.803-3.7l3.181 3.182m0-4.991v4.99" />
+    </svg>
+);