feat: implement file upload

pkg/system/file.go

@@ -0,0 +1,25 @@
+package system
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+)
+
+// StoreFile stores a file on the file system at the given path.
+// If the path does not exist, it will be created.
+func StoreFile(path string, content []byte) error {
+	// Ensure the directory exists
+	dir := filepath.Dir(path)
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return fmt.Errorf("failed to create directory: %v", err)
+	}
+
+	// Write the file
+	if err := ioutil.WriteFile(path, content, 0644); err != nil {
+		return fmt.Errorf("failed to write file: %v", err)
+	}
+
+	return nil
+}