feat(ui): add add-remote wizard state machine

src/ui.rs

@@ -1,4 +1,5 @@
 //! Графический интерфейс для операций rclone с интегрированным Local FS и поддержкой кастомных шрифтов.
+use crate::operations::remotes::ConfigQuestion;
 use crate::operations::{FileInfo, Remote};
 use crate::rclone_install::RcloneApp;
 use std::sync::Arc;
@@ -32,9 +33,29 @@ enum OperationResult {
     Failure(u32, String),
     FileList(Vec<FileInfo>),
     RemoteList(Vec<Remote>),
+    RemoteAdded(u32, Vec<Remote>),
+    ConfigQuestion(u32, String, ConfigQuestion),
     ProgressUpdate(u32, f32, String),
 }
 
+/// Шаг мастера добавления облака
+#[derive(Clone)]
+pub enum AddRemoteStep {
+    /// Ввод имени и типа
+    Form,
+    /// rclone задал вопрос
+    Question(ConfigQuestion),
+    /// Команда выполняется в фоне (например, ожидание авторизации в браузере)
+    Busy,
+}
+
+/// Популярные типы удаленных хранилищ rclone
+pub const REMOTE_TYPES: &[&str] = &[
+    "drive", "dropbox", "onedrive", "s3", "gcs", "b2", "azureblob",
+    "webdav", "sftp", "ftp", "smb", "local", "crypt", "http", "mega",
+    "pcloud", "box", "googlephotos", "jottacloud", "koofr",
+];
+
 pub struct RcloneUI {
     rclone: Option<Arc<RcloneApp>>,
     state: AppState,
@@ -61,6 +82,14 @@ pub struct RcloneUI {
     #[allow(dead_code)]
     settings: AppSettings,
 
+    show_add_remote_dialog: bool,
+    new_remote_name: String,
+    new_remote_type: String,
+    add_remote_step: AddRemoteStep,
+    add_remote_state: Option<String>,
+    add_remote_answer: String,
+    add_remote_status: String,
+
     active_task_count: u32,
     operation_tx: Sender<OperationResult>,
     operation_rx: Receiver<OperationResult>,