Migrate the transfer progress UI to tuirealm 4, where the stdlib
`ProgressBar` widget was dropped, by rebuilding the dual-bar panel on
top of `Gauge`.
- Restore the unified two-bar look: the full bar (top) and partial bar
(bottom) draw joined borders so they read as a single panel; a single
file shows one fully-bordered bar.
- Redraw on every file boundary in the send/recv queue loops so the
full bar's (N/total) counter advances even for small files that finish
within one in-loop redraw interval.
- Track progress with a single `TransferProgress` (exact file count from
the pre-scan, lazy partial/full computation) and consolidate the theme
progress-bar fields.
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.
Christian Visintin