small fix, don't worry about it

app/backend/cmd/test-build-manager/main.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"context"
+	"fmt"
+
+	"containr/internal/build"
+)
+
+func main() {
+	fmt.Println("🧪 Testing Build Manager Detection...")
+	
+	// Test build type detection on the current project
+	fmt.Println("\n📁 Testing on current project (has package.json)...")
+	
+	// Note: We can't fully test BuildManager without a docker client,
+	// but we can test the detection logic
+	
+	// Create mock scenarios
+	testCases := []struct {
+		name     string
+		expected string
+	}{
+		{"Node.js project (package.json)", "railpack"},
+		{"Python project (requirements.txt)", "railpack"}, 
+		{"Go project (go.mod)", "railpack"},
+		{"Dockerfile project", "dockerfile"},
+		{"Unknown project", "nixpacks"},
+	}
+	
+	fmt.Println("\n🎯 Expected detection priorities:")
+	for _, tc := range testCases {
+		fmt.Printf("  • %s → %s\n", tc.name, tc.expected)
+	}
+	
+	// Test Railpack builder directly
+	builder := build.NewRailpackBuilder("/tmp/test", nil)
+	
+	fmt.Println("\n🔍 Testing Railpack detection on current project:")
+	err := builder.DetectRailpack(context.Background(), "/home/tdvorak/Desktop/PROG+HTML/Containr")
+	if err != nil {
+		fmt.Printf("❌ Detection failed: %v\n", err)
+	} else {
+		fmt.Println("✅ Railpack can build this project!")
+	}
+	
+	fmt.Println("\n📋 Build Priority Order:")
+	fmt.Println("  1. Dockerfile (if present)")
+	fmt.Println("  2. Railpack (primary choice)")
+	fmt.Println("  3. Nixpacks (fallback)")
+	fmt.Println("  4. Prebuilt (manual)")
+	
+	fmt.Println("\n🚀 Build Manager Integration Test Complete!")
+}