refactor(backend): rename OpenFlare directory to lowercase openflare

backend/openflare/plugins/agent/runtimeuser/runtimeuser_unix.go

@@ -0,0 +1,23 @@
+//go:build unix
+
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package runtimeuser
+
+import (
+	"fmt"
+	"syscall"
+)
+
+func init() {
+	dropToImpl = func(account *Account) error {
+		if err := syscall.Setgid(account.GID); err != nil {
+			return fmt.Errorf("setgid %d: %w", account.GID, err)
+		}
+		if err := syscall.Setuid(account.UID); err != nil {
+			return fmt.Errorf("setuid %d: %w", account.UID, err)
+		}
+		return nil
+	}
+}