fix: replace index-based React keys with stable data keys (F-9)

Use page paths, referrer URLs, item names, and composite location
keys instead of array indices. Prevents stale-row glitches when
lists are filtered or reordered.

app/faq/page.tsx

@@ -114,7 +114,7 @@ export default function FAQPage() {
 
         <div className="max-w-3xl mx-auto">
           {faqs.map((faq, index) => (
-            <FAQItem key={index} faq={faq} index={index} />
+            <FAQItem key={faq.question} faq={faq} index={index} />
           ))}
         </div>
 

app/page.tsx

@@ -78,8 +78,8 @@ function ComparisonSection() {
               { feature: "GDPR Compliant", pulse: true, ga: "Complex" },
               { feature: "Script Size", pulse: "< 1 KB", ga: "45 KB+" },
               { feature: "Data Ownership", pulse: "Yours", ga: "Google's" },
-            ].map((row, i) => (
-              <tr key={i} className="hover:bg-neutral-50/50 dark:hover:bg-neutral-800/50 transition-colors">
+            ].map((row) => (
+              <tr key={row.feature} className="hover:bg-neutral-50/50 dark:hover:bg-neutral-800/50 transition-colors">
                 <td className="p-6 text-neutral-900 dark:text-white font-medium">{row.feature}</td>
                 <td className="p-6">
                   {row.pulse === true ? (
@@ -303,7 +303,7 @@ export default function HomePage() {
               { icon: ZapIcon, title: "Lightweight", desc: "Our script is less than 1kb. It won't slow down your site or affect your SEO." }
             ].map((feature, i) => (
               <motion.div
-                key={i}
+                key={feature.title}
                 initial={{ opacity: 0, y: 20 }}
                 whileInView={{ opacity: 1, y: 0 }}
                 viewport={{ once: true }}

app/sites/[id]/funnels/[funnelId]/page.tsx

@@ -278,7 +278,7 @@ export default function FunnelReportPage() {
               </thead>
               <tbody className="divide-y divide-neutral-200 dark:divide-neutral-800">
                 {stats.steps.map((step, i) => (
-                  <tr key={i} className="hover:bg-neutral-50 dark:hover:bg-neutral-800/30 transition-colors">
+                  <tr key={step.step.name} className="hover:bg-neutral-50 dark:hover:bg-neutral-800/30 transition-colors">
                     <td className="px-6 py-4">
                       <div className="flex items-center gap-3">
                         <span className="w-6 h-6 rounded-full bg-neutral-100 dark:bg-neutral-800 flex items-center justify-center text-xs font-medium text-neutral-600 dark:text-neutral-400">

app/sites/[id]/funnels/new/page.tsx

@@ -149,7 +149,7 @@ export default function CreateFunnelPage() {
           </div>
 
           {steps.map((step, index) => (
-            <div key={index} className="bg-white dark:bg-neutral-900 border border-neutral-200 dark:border-neutral-800 rounded-2xl p-4">
+            <div key={`step-${index}`} className="bg-white dark:bg-neutral-900 border border-neutral-200 dark:border-neutral-800 rounded-2xl p-4">
               <div className="flex items-start gap-4">
                 <div className="mt-3 text-neutral-400">
                   <div className="w-6 h-6 rounded-full bg-neutral-100 dark:bg-neutral-800 flex items-center justify-center text-sm font-medium text-neutral-600 dark:text-neutral-400">

app/sites/[id]/funnels/page.tsx

@@ -117,7 +117,7 @@ export default function FunnelsPage() {
                       )}
                       <div className="flex items-center gap-2 mt-4">
                         {funnel.steps.map((step, i) => (
-                          <div key={i} className="flex items-center text-sm text-neutral-500">
+                          <div key={step.name} className="flex items-center text-sm text-neutral-500">
                             <span className="px-2 py-1 bg-neutral-100 dark:bg-neutral-800 rounded-lg text-neutral-700 dark:text-neutral-300">
                               {step.name}
                             </span>