Method CreateFolder

apps/server/internal/vault/vault.go:1710–1725

--- Folders ---

(folder NoteFolder, subpath string)

// --- Folders ---

func (v *Vault) CreateFolder(folder NoteFolder, subpath string) error {
	v.mu.Lock()
	defer v.mu.Unlock()
	if !IsValidFolder(folder) {
		return fmt.Errorf("invalid folder: %s", folder)
	}
	base, err := v.folderRoot(folder)
	if err != nil {
		return err
	}
	abs, err := SafeJoin(base, subpath)
	if err != nil {
		return err
	}
	return os.MkdirAll(abs, v.dirMode)
}

func (v *Vault) RenameFolder(folder NoteFolder, oldSub, newSub string) (string, error) {
	v.mu.Lock()