userutils: bump submodule (login diagnostics) + redbear-power/tlc WIP

userutils: commits login/getty diagnostic logging.
redbear-power: toast notification storage + set_nice syscall helper + render WIP.
tlc: cmdline tab-completion improvements.

local/recipes/system/redbear-power/source/src/app.rs

@@ -831,7 +831,12 @@ impl App {
             self.pkg_thermal = PackageThermal::from_msr(pkg);
             // PROCHOT at the package level means the entire chip is
             // throttling. Surface that in the global header.
-            self.throttle = if pkg & THERM_STATUS_PROCHOT != 0 {
+            let prochot_now = pkg & THERM_STATUS_PROCHOT != 0;
+            let prochot_was = matches!(self.throttle, ThrottleMode::ForcedMin);
+            if prochot_now && !prochot_was {
+                self.flash_toast("PROCHOT triggered \u{2014} throttling active");
+            }
+            self.throttle = if prochot_now {
                 if matches!(self.throttle, ThrottleMode::Auto) {
                     ThrottleMode::ForcedMin
                 } else {

local/recipes/system/redbear-power/source/src/main.rs

@@ -78,7 +78,7 @@ use crate::render::{
     GRAPH_HEIGHT, render_battery_panel, render_cpu_table, render_header, render_help,
     render_info_panel, render_keybar, render_motherboard_panel, render_network_panel, render_once,
     render_pid_detail, render_process_panel, render_prochot_alert, render_sensor_panel,
-    render_storage_panel, render_system_panel, render_tab_bar, snapshot,
+    render_storage_panel, render_system_panel, render_tab_bar, render_toast, snapshot,
 };
 
 #[derive(Clone, Copy, Debug, PartialEq)]
@@ -747,6 +747,9 @@ fn main() -> io::Result<()> {
                 let area = Rect::new(0, full.y + full.height - 1, full.width, 1);
                 f.render_widget(alert, area);
             }
+            if let Some(toast) = render_toast(&app) {
+                f.render_widget(toast, full);
+            }
             if show_help {
                 let area = full.centered(Constraint::Percentage(70), Constraint::Percentage(80));
                 f.render_widget(Clear, area);

local/recipes/system/redbear-power/source/src/render.rs

@@ -145,6 +145,21 @@ pub fn render_prochot_alert(app: &App, frame: &Frame) -> Option<Paragraph<'stati
     Some(Paragraph::new(line).style(theme::PROCHOT_PULSE))
 }
 
+/// tlc-style toast notification. Floating box at bottom-right.
+pub fn render_toast<'a>(app: &'a App) -> Option<Paragraph<'a>> {
+    use crate::theme;
+    let msg = app.active_toast()?;
+    Some(
+        Paragraph::new(Line::from(vec![
+            ratatui::text::Span::styled(" \u{25CF} ", theme::STATUS_OK),
+            ratatui::text::Span::styled(msg, theme::VALUE),
+        ]))
+        .style(theme::VALUE)
+        .block(Block::default().borders(Borders::ALL).title(" Notice "))
+        .alignment(ratatui::layout::Alignment::Left),
+    )
+}
+
 pub fn render_header<'a>(app: &'a App, focused: bool) -> Paragraph<'a> {
     let pkg_temp = app
         .cpus

local/recipes/tui/tlc/source/src/filemanager/cmdline.rs

@@ -57,6 +57,10 @@ pub struct Cmdline {
     /// activated so completion resolves relative to the active
     /// panel's current directory.
     base_dir: Option<std::path::PathBuf>,
+    /// Last-completion candidates, populated when the user presses
+    /// Tab and the prefix matches more than one entry. Used to
+    /// render the completion hint popup.
+    pub completions: Vec<String>,
 }
 
 impl Default for Cmdline {
@@ -77,6 +81,7 @@ impl Cmdline {
             message: None,
             width_pct: 1.0,
             base_dir: None,
+            completions: Vec::new(),
         }
     }
 
@@ -104,6 +109,7 @@ impl Cmdline {
     pub fn complete(&mut self, base_dir: Option<&std::path::Path>) -> bool {
         let raw = self.input.value().to_string();
         if raw.is_empty() {
+            self.completions.clear();
             return false;
         }
         let (dir, prefix) = match base_dir {
@@ -135,10 +141,14 @@ impl Cmdline {
             .filter_map(|e| e.file_name().into_string().ok())
             .filter(|n| n.starts_with(&prefix))
             .collect();
-        if matches.is_empty() {
+if matches.is_empty() {
+            self.completions.clear();
             return false;
         }
         matches.sort();
+        // Store all matches so the caller can render a hint
+        // popup with the candidate list.
+        self.completions = matches.clone();
         let lcp: String = {
             let mut chars: Vec<char> = matches[0].chars().collect();
             'outer: for (i, c) in chars.clone().into_iter().enumerate() {