chore: add coinspect babylon genesis v4 audit report

docs/guides/security/audit_reports.mdx

@@ -65,7 +65,7 @@ Audits for the Phase 1 of the Babylon Bitcoin Staking Protocol are conducted by
 
 ### Phase 2 Audits
 
-Audits for the Babylon Genesis Chain are conducted by [Coinspect](https://www.coinspect.io/) and [Zellic](https://zellic.io/).
+Audits for the Babylon Genesis Chain are conducted by [Coinspect](https://www.coinspect.com/) and [Zellic](https://zellic.io/).
 
 <CardSection id="Babylon Security Audit Reports">
   <BrowserOnly>
@@ -131,3 +131,21 @@ Audits for the [Babylon Genesis v2 Upgrade](https://babylonlabs.io/blog/babylon-
     )}
   </BrowserOnly>
 </CardSection>
+
+### Babylon Genesis v4 Audits
+
+Audits for the Babylon Genesis v4 Upgrade are conducted by [Coinspect](https://www.coinspect.com/)
+
+<CardSection id="Babylon Security Audit Reports">
+  <BrowserOnly>
+    {() => (
+      <Card
+        title="Coinspect Babylon Genesis v4 Audit Report"
+        to={new URL('/assets/files/Coinspect_Source_Code_Audit_Babylon_Babylon_v4_v251029_Fixes.pdf', window.location.origin).href}
+        description="Coinspect Babylon Genesis v4 Upgrade Audit Report (Oct 2025)"
+        target="_blank"
+        rel="noopener noreferrer"
+      />
+    )}
+  </BrowserOnly>
+</CardSection>