ci cross-platform fix: make system_info disk usage helper windows-safe with build tags

pkg/tools/system.go

@@ -6,7 +6,6 @@ import (
 	"os"
 	"runtime"
 	"strings"
-	"syscall"
 )
 
 type SystemInfoTool struct{}
@@ -87,15 +86,8 @@ func (t *SystemInfoTool) Execute(ctx context.Context, args map[string]interface{
 		}
 	}
 
-	// Disk usage for /
-	var stat syscall.Statfs_t
-	if err := syscall.Statfs("/", &stat); err == nil {
-		bsize := uint64(stat.Bsize)
-		total := stat.Blocks * bsize
-		free := stat.Bfree * bsize
-		used := total - free
-		sb.WriteString(fmt.Sprintf("Disk (/): Used %.2f GB / Total %.2f GB (%.2f%%)\n",
-			float64(used)/1024/1024/1024, float64(total)/1024/1024/1024, float64(used)/float64(total)*100))
+	if diskLine := diskUsageRoot(); diskLine != "" {
+		sb.WriteString(diskLine)
 	}
 
 	return sb.String(), nil

pkg/tools/system_disk_unix.go

@@ -0,0 +1,22 @@
+//go:build !windows
+
+package tools
+
+import "fmt"
+import "syscall"
+
+func diskUsageRoot() string {
+	var stat syscall.Statfs_t
+	if err := syscall.Statfs("/", &stat); err != nil {
+		return ""
+	}
+	bsize := uint64(stat.Bsize)
+	total := stat.Blocks * bsize
+	free := stat.Bfree * bsize
+	used := total - free
+	if total == 0 {
+		return ""
+	}
+	return fmt.Sprintf("Disk (/): Used %.2f GB / Total %.2f GB (%.2f%%)\n",
+		float64(used)/1024/1024/1024, float64(total)/1024/1024/1024, float64(used)/float64(total)*100)
+}

pkg/tools/system_disk_windows.go

@@ -0,0 +1,7 @@
+//go:build windows
+
+package tools
+
+func diskUsageRoot() string {
+	return ""
+}