feat: add supervisor prototype with embedded frontend

cmd/supervisor/main.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os/signal"
+	"syscall"
+
+	"supervisor/internal/app"
+	"supervisor/internal/config"
+)
+
+func main() {
+	cfg := config.Load()
+
+	application, err := app.New(cfg)
+	if err != nil {
+		log.Fatalf("failed to initialize app: %v", err)
+	}
+
+	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	defer stop()
+
+	if err := application.Run(ctx); err != nil {
+		log.Fatalf("application error: %v", err)
+	}
+}