feat: Konsole parity phase 1 (save output, search options, monitors, profile CLI)

Implements the first batch of COSMIC_TERMINAL_KONSOLE_PARITY.md:

Save output as text:
- New SaveOutput action in the Edit menu, terminal context menu and
  keyboard shortcuts (Ctrl+Shift+S, Konsole parity, rebindable).
- Terminal::scrollback_text() extracts history plus visible screen via
  alacritty bounds_to_string, trimming trailing empty lines.
- Save-file dialog through cosmic-files; the file is written in a
  spawn_blocking task so large scrollbacks never stall the UI.

Search options:
- Case-sensitive and regex checkboxes in the find bar.
- App::find_pattern() escapes the pattern when regex mode is off and
  prefixes (?i) when case-insensitive (same approach as Alacritty).

Per-tab monitors (activity / silence / process finished):
- Toggles in the View menu and terminal context menu, state stored in
  Terminal (monitor_* fields).
- Activity alerts on PTY output (Wakeup) for non-active tabs; silence
  alerts after 10 s without output (Konsole default); process-finished
  compares the shell pgrp with the tty tpgid via /proc/<pid>/stat and
  alerts when the foreground job exits.
- Silence and process checks run on a 1 s iced::time subscription that
  is only active while at least one tab needs it.
- Tab bar shows an armed icon (view-reveal-symbolic) and per-kind alert
  icons; activating the tab acknowledges the alert.

Profile CLI:
- --profile/-p <name-or-id> applies a profile to the first tab only,
  unknown profiles exit(1) with the available list on stderr.
- --list-profiles prints "id<TAB>name" and exits.
- Config is now loaded before the daemonize fork so CLI output reaches
  the launching terminal.
- --help now documents -e/--command, --no-daemon and the new flags
  (-e already worked; audit confirmed everything after it becomes the
  command and its arguments).

i18n: new en/fr strings (save-output, monitor-*, find-case-sensitive,
find-regex).

Validated with ./check_cosmic_local.sh terminal, cargo fmt, and a debug
build exercising the CLI flags and a 6 s live run. The shutdown panic
in iced_winit ("async fn resumed after completion") pre-exists and is
reproducible with the installed binary.

Leyoda 2026 – GPLv3

src/menu.rs

@@ -18,7 +18,7 @@ use cosmic::{
 };
 use std::{collections::HashMap, sync::LazyLock};
 
-use crate::{Action, ColorSchemeId, ColorSchemeKind, Config, Message, fl};
+use crate::{Action, ColorSchemeId, ColorSchemeKind, Config, Message, fl, terminal::MonitorKind};
 
 static MENU_ID: LazyLock<cosmic::widget::Id> =
     LazyLock::new(|| cosmic::widget::Id::new("responsive-menu"));
@@ -35,6 +35,7 @@ pub fn context_menu<'a>(
     key_binds: &HashMap<KeyBind, Action>,
     entity: segmented_button::Entity,
     link: Option<String>,
+    monitors: (bool, bool, bool),
 ) -> Element<'a, Message> {
     let find_key = |action: &Action| -> String {
         for (key_bind, key_action) in key_binds {
@@ -83,6 +84,23 @@ pub fn context_menu<'a>(
         Element::from(menu_item(fl!("select-all"), Action::SelectAll)),
         Element::from(divider::horizontal::light()),
         Element::from(menu_item(fl!("clear-scrollback"), Action::ClearScrollback)),
+        Element::from(menu_item(fl!("save-output"), Action::SaveOutput)),
+        Element::from(divider::horizontal::light()),
+        Element::from(menu_checkbox(
+            fl!("monitor-activity"),
+            monitors.0,
+            Action::Monitor(MonitorKind::Activity),
+        )),
+        Element::from(menu_checkbox(
+            fl!("monitor-silence"),
+            monitors.1,
+            Action::Monitor(MonitorKind::Silence),
+        )),
+        Element::from(menu_checkbox(
+            fl!("monitor-process-finished"),
+            monitors.2,
+            Action::Monitor(MonitorKind::ProcessFinished),
+        )),
         Element::from(divider::horizontal::light()),
         Element::from(menu_item(
             fl!("split-horizontal"),
@@ -200,6 +218,7 @@ pub fn menu_bar<'a>(
     core: &Core,
     config: &Config,
     key_binds: &HashMap<KeyBind, Action>,
+    monitors: (bool, bool, bool),
 ) -> Element<'a, Message> {
     let mut profile_items = Vec::with_capacity(config.profiles.len());
     for (name, id) in config.profile_names() {
@@ -243,6 +262,7 @@ pub fn menu_bar<'a>(
                         MenuItem::Button(fl!("select-all"), None, Action::SelectAll),
                         MenuItem::Divider,
                         MenuItem::Button(fl!("clear-scrollback"), None, Action::ClearScrollback),
+                        MenuItem::Button(fl!("save-output"), None, Action::SaveOutput),
                         MenuItem::Divider,
                         MenuItem::Button(fl!("find"), None, Action::Find),
                     ],
@@ -269,6 +289,25 @@ pub fn menu_bar<'a>(
                             Action::PaneToggleMaximized,
                         ),
                         MenuItem::Divider,
+                        MenuItem::CheckBox(
+                            fl!("monitor-activity"),
+                            None,
+                            monitors.0,
+                            Action::Monitor(MonitorKind::Activity),
+                        ),
+                        MenuItem::CheckBox(
+                            fl!("monitor-silence"),
+                            None,
+                            monitors.1,
+                            Action::Monitor(MonitorKind::Silence),
+                        ),
+                        MenuItem::CheckBox(
+                            fl!("monitor-process-finished"),
+                            None,
+                            monitors.2,
+                            Action::Monitor(MonitorKind::ProcessFinished),
+                        ),
+                        MenuItem::Divider,
                         MenuItem::Button(
                             fl!("menu-color-schemes"),
                             None,