feat: implement cache layer, CSP improvements, and database performance optimizations

- Add Redis cache implementation with LRU eviction
- Enhance Content Security Policy with nonce generation
- Optimize database queries with connection pooling
- Add cache invalidation API endpoints
- Improve security monitoring performance

app/platform/dashboard/page.tsx

@@ -346,7 +346,15 @@ function renderCompanyListItem(
       <div className="flex-1">
         <div className="flex items-center gap-3 mb-2">
           <h3 className="font-semibold">{company.name}</h3>
-          <Badge variant={getStatusBadgeVariant(company.status)}>
+          <Badge
+            variant={
+              getStatusBadgeVariant(company.status) as
+                | "default"
+                | "destructive"
+                | "outline"
+                | "secondary"
+            }
+          >
             {company.status}
           </Badge>
         </div>