build: migrate to tui-realm 4.0

Upgrade tuirealm (3.x -> 4.0.0), tui-realm-stdlib (3 -> 4), tui-term
(0.2 -> 0.3). Apply all breaking changes from the 4.0 migration guide
across the termscp UI.

Key changes:

- Root-level re-exports removed; imports moved to module-qualified
  paths (`tuirealm::application`, `::component`, `::event`, `::props`,
  `::state`, `::subscription`, `::listener`, `::ratatui`). Same for
  stdlib component types (`tui_realm_stdlib::components::*`).
- `MockComponent` trait renamed to `Component`; old `Component` trait
  renamed to `AppComponent`. `#[derive(MockComponent)]` is now
  `#[derive(Component)]`. `Component::on` now takes `&Event<_>`.
- `TextSpan` replaced with `SpanStatic`/`LineStatic`/`TextStatic`
  (ratatui-based); tuple `(String, Alignment)` titles replaced with
  the new `Title` builder; `Alignment` split into
  `HorizontalAlignment`/`VerticalAlignment`; stdlib components use
  `.alignment_horizontal` instead of `.alignment`.
- `State::One`/`PropPayload::One` -> `Single`. `CmdResult::None`
  -> `NoChange`. `Props::get_or` removed; `Props::get` now returns a
  borrowed `Option<&AttrValue>` (call sites switched to
  `.and_then(AttrValue::as_*)`). `Component::query` returns
  `Option<QueryResult<'a>>`.
- `Attribute::HighlightedColor` -> `HighlightStyle` (a full `Style`).
  `.highlighted_*` helpers renamed to `.highlight_*`.
- `PollStrategy::UpTo(n)` now requires a `Duration`; tick timeout moved
  from `EventListenerCfg::poll_timeout` into `PollStrategy`.
- `TerminalBridge` removed; `Context` now holds
  `CrosstermTerminalAdapter` directly and enables raw mode + alternate
  screen explicitly. The `TerminalAdapter` trait is imported where its
  methods are used.
- `Update` trait removed; activity `update` methods are plain inherent
  functions.
- `ProgressBar` replaced by stdlib `Gauge`. Paragraph `.wrap` renamed
  to `.wrap_trim`; `.text` now takes an `Into<Text>`. Stdlib `List` row
  items are now individual lines (`Vec<Span>` per row) rather than a
  `Table` of spans; custom `FileList`/`Log` convert between the two
  models.
- Radio builders drop `.foreground(color)` so unselected items render
  with the terminal default foreground, and set
  `highlight_style(Style::default().fg(color).add_modifier(REVERSED))`
  so the selected entry is visibly highlighted only with the theme
  color.
- Custom `FileList` keeps the selected row highlighted with the full
  highlight style when focused and falls back to a foreground-only
  style when unfocused.
- Theme loading is now backwards compatible: `Theme` uses a custom
  `Deserialize` through an intermediate `ThemeFile` with optional
  fields, so missing keys, unknown values or legacy aliases
  (`transfer_progress_bar_full`/`_partial`) fall back to defaults on a
  per-field basis instead of failing the whole load.

src/ui/activities/setup/view/setup.rs

@@ -8,7 +8,8 @@
 use std::path::PathBuf;
 
 use tuirealm::ratatui::layout::{Constraint, Direction, Layout};
-use tuirealm::{State, StateValue};
+use tuirealm::state::{State, StateValue};
+use tuirealm::terminal::TerminalAdapter;
 
 use super::{
     Context, Id, IdCommon, IdConfig, RADIO_PROTOCOL_KUBE, RADIO_PROTOCOL_WEBDAV, SetupActivity,
@@ -256,13 +257,13 @@ impl SetupActivity {
 
     /// Collect values from input and put them into the configuration
     pub(crate) fn collect_input_values(&mut self) {
-        if let Ok(State::One(StateValue::String(editor))) =
+        if let Ok(State::Single(StateValue::String(editor))) =
             self.app.state(&Id::Config(IdConfig::TextEditor))
         {
             self.config_mut()
                 .set_text_editor(PathBuf::from(editor.as_str()));
         }
-        if let Ok(State::One(StateValue::Usize(protocol))) =
+        if let Ok(State::Single(StateValue::Usize(protocol))) =
             self.app.state(&Id::Config(IdConfig::DefaultProtocol))
         {
             let protocol: FileTransferProtocol = match protocol {
@@ -277,35 +278,35 @@ impl SetupActivity {
             };
             self.config_mut().set_default_protocol(protocol);
         }
-        if let Ok(State::One(StateValue::Usize(opt))) =
+        if let Ok(State::Single(StateValue::Usize(opt))) =
             self.app.state(&Id::Config(IdConfig::HiddenFiles))
         {
             let show: bool = matches!(opt, 0);
             self.config_mut().set_show_hidden_files(show);
         }
-        if let Ok(State::One(StateValue::Usize(opt))) =
+        if let Ok(State::Single(StateValue::Usize(opt))) =
             self.app.state(&Id::Config(IdConfig::CheckUpdates))
         {
             let check: bool = matches!(opt, 0);
             self.config_mut().set_check_for_updates(check);
         }
-        if let Ok(State::One(StateValue::Usize(opt))) =
+        if let Ok(State::Single(StateValue::Usize(opt))) =
             self.app.state(&Id::Config(IdConfig::PromptOnFileReplace))
         {
             let check: bool = matches!(opt, 0);
             self.config_mut().set_prompt_on_file_replace(check);
         }
-        if let Ok(State::One(StateValue::String(fmt))) =
+        if let Ok(State::Single(StateValue::String(fmt))) =
             self.app.state(&Id::Config(IdConfig::LocalFileFmt))
         {
             self.config_mut().set_local_file_fmt(fmt);
         }
-        if let Ok(State::One(StateValue::String(fmt))) =
+        if let Ok(State::Single(StateValue::String(fmt))) =
             self.app.state(&Id::Config(IdConfig::RemoteFileFmt))
         {
             self.config_mut().set_remote_file_fmt(fmt);
         }
-        if let Ok(State::One(StateValue::Usize(opt))) =
+        if let Ok(State::Single(StateValue::Usize(opt))) =
             self.app.state(&Id::Config(IdConfig::GroupDirs))
         {
             let dirs: Option<GroupDirs> = match opt {
@@ -315,18 +316,18 @@ impl SetupActivity {
             };
             self.config_mut().set_group_dirs(dirs);
         }
-        if let Ok(State::One(StateValue::Usize(opt))) =
+        if let Ok(State::Single(StateValue::Usize(opt))) =
             self.app.state(&Id::Config(IdConfig::NotificationsEnabled))
         {
             self.config_mut().set_notifications(opt == 0);
         }
-        if let Ok(State::One(StateValue::U64(bytes))) = self
+        if let Ok(State::Single(StateValue::U64(bytes))) = self
             .app
             .state(&Id::Config(IdConfig::NotificationsThreshold))
         {
             self.config_mut().set_notification_threshold(bytes);
         }
-        if let Ok(State::One(StateValue::String(mut path))) =
+        if let Ok(State::Single(StateValue::String(mut path))) =
             self.app.state(&Id::Config(IdConfig::SshConfig))
         {
             if path.is_empty() {

src/ui/activities/setup/view/ssh_keys.rs

@@ -7,6 +7,7 @@
 // Ext
 use tuirealm::ratatui::layout::{Constraint, Direction, Layout};
 use tuirealm::ratatui::widgets::Clear;
+use tuirealm::terminal::TerminalAdapter;
 
 use super::{Context, Id, IdCommon, IdSsh, SetupActivity, ViewLayout, components};
 use crate::utils::ui::{Popup, Size};

src/ui/activities/setup/view/theme.rs

@@ -6,6 +6,7 @@
 // Locals
 // Ext
 use tuirealm::ratatui::layout::{Constraint, Direction, Layout};
+use tuirealm::terminal::TerminalAdapter;
 
 use super::{Context, Id, IdCommon, IdTheme, SetupActivity, Theme, ViewLayout, components};