fix welcome mode redirect - add missing /api/health endpoint

- swap Live Operations to main screenshots section
- remove WebSocket reference from future features
- better screenshot layout with Live Operations prominent

aggregator-server/cmd/server/main.go

@@ -23,10 +23,13 @@ func startWelcomeModeServer() {
 	// Add CORS middleware
 	router.Use(middleware.CORSMiddleware())
 
-	// Health check (both endpoints for compatibility)
+	// Health check (all endpoints for compatibility)
 	router.GET("/health", func(c *gin.Context) {
 		c.JSON(200, gin.H{"status": "waiting for configuration"})
 	})
+	router.GET("/api/health", func(c *gin.Context) {
+		c.JSON(200, gin.H{"status": "waiting for configuration"})
+	})
 	router.GET("/api/v1/health", func(c *gin.Context) {
 		c.JSON(200, gin.H{"status": "waiting for configuration"})
 	})
@@ -159,6 +162,9 @@ func main() {
 	router.GET("/health", func(c *gin.Context) {
 		c.JSON(200, gin.H{"status": "healthy"})
 	})
+	router.GET("/api/health", func(c *gin.Context) {
+		c.JSON(200, gin.H{"status": "healthy"})
+	})
 
 	// API routes
 	api := router.Group("/api/v1")