feat: delete firmware

internal/storage/file.go

@@ -55,3 +55,20 @@ func (fs *FileStorage) FirmwareExists(name, version string) bool {
 	_, err := os.Stat(filePath)
 	return !os.IsNotExist(err)
 }
+
+// DeleteFirmwareBinary deletes a firmware binary and its directory
+func (fs *FileStorage) DeleteFirmwareBinary(name, version string) error {
+	// Get directory path: registry/<name>/<version>/
+	dirPath := filepath.Join(fs.registryPath, name, version)
+
+	// Remove the entire version directory
+	if err := os.RemoveAll(dirPath); err != nil {
+		return fmt.Errorf("failed to delete firmware directory: %w", err)
+	}
+
+	// Try to remove the name directory if it's empty
+	nameDir := filepath.Join(fs.registryPath, name)
+	os.Remove(nameDir) // Ignore error, directory might not be empty
+
+	return nil
+}