build: Update library assets with UI visibility fix

- Rebuild JavaScript library with delayed control panel initialization
- Update server assets to include latest UI behavior changes
- Ensure built assets reflect invisible UI for regular visitors

The control panel now only appears after gate activation, maintaining
the invisible CMS principle for end users.

internal/content/enhancer.go

@@ -43,6 +43,16 @@ func NewEnhancer(client engine.ContentClient, siteID string, config EnhancementC
 	}
 }
 
+// NewEnhancerWithAuth creates a new HTML enhancer with auth provider
+func NewEnhancerWithAuth(client engine.ContentClient, siteID string, config EnhancementConfig, authProvider *engine.AuthProvider) *Enhancer {
+	return &Enhancer{
+		engine:     engine.NewContentEngineWithAuth(client, authProvider),
+		discoverer: NewDiscoverer(),
+		config:     config,
+		siteID:     siteID,
+	}
+}
+
 // NewDefaultEnhancer creates an enhancer with default configuration
 func NewDefaultEnhancer(client engine.ContentClient, siteID string) *Enhancer {
 	defaultConfig := EnhancementConfig{