Add mouse support and improve terminal resize handling

- Add mouse click support for hostname selection in title bar
- Fix right-aligned hostname position calculation
- Add mouse scroll support for both panels
- Add mouse click to select service rows
- Add right-click popup menu for service actions (Start/Stop/Logs)
- Add hover highlighting for popup menu items
- Improve terminal resize crash protection with 90x15 minimum size
- Add "Host:" prefix and separators to status bar
- Move NixOS metrics from system panel to status bar
- Change "... X more below" indicator to use border color
- Remove service name from popup menu title

dashboard/src/ui/mod.rs

@@ -17,7 +17,7 @@ pub mod widgets;
 use crate::config::DashboardConfig;
 use crate::metrics::MetricStore;
 use cm_dashboard_shared::Status;
-use theme::{Components, Layout as ThemeLayout, Theme, Typography};
+use theme::{Components, Layout as ThemeLayout, Theme};
 use widgets::{ServicesWidget, SystemWidget, Widget};
 
 
@@ -47,12 +47,21 @@ impl HostWidgets {
 }
 
 
+/// Popup menu state
+#[derive(Clone)]
+pub struct PopupMenu {
+    pub service_name: String,
+    pub x: u16,
+    pub y: u16,
+    pub selected_index: usize,
+}
+
 /// Main TUI application
 pub struct TuiApp {
     /// Widget states per host (hostname -> HostWidgets)
     host_widgets: HashMap<String, HostWidgets>,
     /// Current active host
-    current_host: Option<String>,
+    pub current_host: Option<String>,
     /// Available hosts
     available_hosts: Vec<String>,
     /// Host index for navigation
@@ -65,6 +74,8 @@ pub struct TuiApp {
     config: DashboardConfig,
     /// Cached localhost hostname to avoid repeated system calls
     localhost: String,
+    /// Active popup menu (if any)
+    pub popup_menu: Option<PopupMenu>,
 }
 
 impl TuiApp {
@@ -79,6 +90,7 @@ impl TuiApp {
             user_navigated_away: false,
             config,
             localhost,
+            popup_menu: None,
         };
         
         // Sort predefined hosts
@@ -93,7 +105,7 @@ impl TuiApp {
     }
 
     /// Get or create host widgets for the given hostname
-    fn get_or_create_host_widgets(&mut self, hostname: &str) -> &mut HostWidgets {
+    pub fn get_or_create_host_widgets(&mut self, hostname: &str) -> &mut HostWidgets {
         self.host_widgets
             .entry(hostname.to_string())
             .or_insert_with(HostWidgets::new)
@@ -159,6 +171,14 @@ impl TuiApp {
     /// Handle keyboard input
     pub fn handle_input(&mut self, event: Event) -> Result<()> {
         if let Event::Key(key) = event {
+            // Close popup on Escape
+            if matches!(key.code, KeyCode::Esc) {
+                if self.popup_menu.is_some() {
+                    self.popup_menu = None;
+                    return Ok(());
+                }
+            }
+
             match key.code {
                 KeyCode::Char('q') => {
                     self.should_quit = true;
@@ -363,6 +383,23 @@ impl TuiApp {
         Ok(())
     }
 
+    /// Switch to a specific host by name
+    pub fn switch_to_host(&mut self, hostname: &str) {
+        if let Some(index) = self.available_hosts.iter().position(|h| h == hostname) {
+            self.host_index = index;
+            self.current_host = Some(hostname.to_string());
+
+            // Check if user navigated away from localhost
+            if hostname != &self.localhost {
+                self.user_navigated_away = true;
+            } else {
+                self.user_navigated_away = false; // User navigated back to localhost
+            }
+
+            info!("Switched to host: {}", hostname);
+        }
+    }
+
     /// Navigate between hosts
     fn navigate_host(&mut self, direction: i32) {
         if self.available_hosts.is_empty() {
@@ -381,7 +418,7 @@ impl TuiApp {
         }
 
         self.current_host = Some(self.available_hosts[self.host_index].clone());
-        
+
         // Check if user navigated away from localhost
         if let Some(ref current) = self.current_host {
             if current != &self.localhost {
@@ -390,7 +427,7 @@ impl TuiApp {
                 self.user_navigated_away = false; // User navigated back to localhost
             }
         }
-        
+
         info!("Switched to host: {}", self.current_host.as_ref().unwrap());
     }
 
@@ -408,6 +445,10 @@ impl TuiApp {
         None
     }
 
+    /// Get the list of available hosts
+    pub fn get_available_hosts(&self) -> &Vec<String> {
+        &self.available_hosts
+    }
 
     /// Should quit application
     pub fn should_quit(&self) -> bool {
@@ -421,7 +462,7 @@ impl TuiApp {
 
 
     /// Render the dashboard (real btop-style multi-panel layout)
-    pub fn render(&mut self, frame: &mut Frame, metric_store: &MetricStore) {
+    pub fn render(&mut self, frame: &mut Frame, metric_store: &MetricStore) -> (Rect, Rect, Rect) {
         let size = frame.size();
 
         // Clear background to true black like btop
@@ -461,8 +502,8 @@ impl TuiApp {
         if current_host_offline {
             self.render_offline_host_message(frame, main_chunks[1]);
             self.render_btop_title(frame, main_chunks[0], metric_store);
-            self.render_statusbar(frame, main_chunks[2]);
-            return;
+            self.render_statusbar(frame, main_chunks[2], metric_store);
+            return (main_chunks[0], Rect::default(), Rect::default()); // Return title area and empty areas when offline
         }
 
         // Left side: system panel only (full height)
@@ -475,20 +516,29 @@ impl TuiApp {
         self.render_btop_title(frame, main_chunks[0], metric_store);
 
         // Render system panel
-        self.render_system_panel(frame, left_chunks[0], metric_store);
+        let system_area = left_chunks[0];
+        self.render_system_panel(frame, system_area, metric_store);
 
         // Render services widget for current host
+        let services_area = content_chunks[1];
         if let Some(hostname) = self.current_host.clone() {
             let is_focused = true; // Always show service selection
             let host_widgets = self.get_or_create_host_widgets(&hostname);
             host_widgets
                 .services_widget
-                .render(frame, content_chunks[1], is_focused); // Services takes full right side
+                .render(frame, services_area, is_focused); // Services takes full right side
         }
 
         // Render statusbar at the bottom
-        self.render_statusbar(frame, main_chunks[2]); // main_chunks[2] is the statusbar area
+        self.render_statusbar(frame, main_chunks[2], metric_store);
 
+        // Render popup menu on top of everything if active
+        if let Some(ref popup) = self.popup_menu {
+            self.render_popup_menu(frame, popup);
+        }
+
+        // Return all areas for mouse event handling
+        (main_chunks[0], system_area, services_area)
     }
 
     /// Render btop-style minimal title with host status colors
@@ -611,36 +661,137 @@ impl TuiApp {
         }
     }
 
-    /// Render dynamic statusbar with context-aware shortcuts
-    fn render_statusbar(&self, frame: &mut Frame, area: Rect) {
-        let shortcuts = self.get_context_shortcuts();
-        let statusbar_text = shortcuts.join(" • ");
-        
-        let statusbar = Paragraph::new(statusbar_text)
-            .style(Typography::secondary())
-            .alignment(ratatui::layout::Alignment::Center);
-            
+    /// Render popup menu for service actions
+    fn render_popup_menu(&self, frame: &mut Frame, popup: &PopupMenu) {
+        use ratatui::widgets::{Block, Borders, Clear, List, ListItem};
+        use ratatui::style::{Color, Modifier};
+
+        // Menu items
+        let items = vec![
+            "Start Service",
+            "Stop Service",
+            "View Logs",
+        ];
+
+        // Calculate popup size
+        let width = 20;
+        let height = items.len() as u16 + 2; // +2 for borders
+
+        // Position popup near click location, but keep it on screen
+        let screen_width = frame.size().width;
+        let screen_height = frame.size().height;
+
+        let x = if popup.x + width < screen_width {
+            popup.x
+        } else {
+            screen_width.saturating_sub(width)
+        };
+
+        let y = if popup.y + height < screen_height {
+            popup.y
+        } else {
+            screen_height.saturating_sub(height)
+        };
+
+        let popup_area = Rect {
+            x,
+            y,
+            width,
+            height,
+        };
+
+        // Create menu items with selection highlight
+        let menu_items: Vec<ListItem> = items
+            .iter()
+            .enumerate()
+            .map(|(i, item)| {
+                let style = if i == popup.selected_index {
+                    Style::default()
+                        .fg(Color::Black)
+                        .bg(Color::White)
+                        .add_modifier(Modifier::BOLD)
+                } else {
+                    Style::default().fg(Theme::primary_text())
+                };
+                ListItem::new(*item).style(style)
+            })
+            .collect();
+
+        let menu_list = List::new(menu_items)
+            .block(
+                Block::default()
+                    .borders(Borders::ALL)
+                    .style(Style::default().bg(Theme::background()).fg(Theme::primary_text()))
+            );
+
+        // Clear the area and render menu
+        frame.render_widget(Clear, popup_area);
+        frame.render_widget(menu_list, popup_area);
+    }
+
+    /// Render statusbar with host and client IPs
+    fn render_statusbar(&self, frame: &mut Frame, area: Rect, _metric_store: &MetricStore) {
+        use ratatui::text::{Line, Span};
+        use ratatui::widgets::Paragraph;
+
+        // Get current host info
+        let (hostname_str, host_ip, build_version, agent_version) = if let Some(hostname) = &self.current_host {
+            // Get the connection IP (the IP dashboard uses to connect to the agent)
+            let ip = if let Some(host_details) = self.config.hosts.get(hostname) {
+                host_details.get_connection_ip(hostname)
+            } else {
+                hostname.clone()
+            };
+
+            // Get build and agent versions from system widget
+            let (build, agent) = if let Some(host_widgets) = self.host_widgets.get(hostname) {
+                let build = host_widgets.system_widget.get_build_version().unwrap_or("N/A".to_string());
+                let agent = host_widgets.system_widget.get_agent_version().unwrap_or("N/A".to_string());
+                (build, agent)
+            } else {
+                ("N/A".to_string(), "N/A".to_string())
+            };
+
+            (hostname.clone(), ip, build, agent)
+        } else {
+            ("None".to_string(), "N/A".to_string(), "N/A".to_string(), "N/A".to_string())
+        };
+
+        let left_text = format!("Host: {} | {} | Build:{} | Agent:{}", hostname_str, host_ip, build_version, agent_version);
+
+        // Get dashboard local IP
+        let dashboard_ip = Self::get_local_ip();
+        let right_text = format!("Dashboard: {}", dashboard_ip);
+
+        // Calculate spacing to push right text to the right (accounting for 1 char left padding)
+        let spacing = area.width as usize - left_text.len() - right_text.len() - 2; // -2 for left padding
+        let spacing_str = " ".repeat(spacing.max(1));
+
+        let line = Line::from(vec![
+            Span::raw(" "), // 1 char left padding
+            Span::styled(left_text, Style::default().fg(Theme::border())),
+            Span::raw(spacing_str),
+            Span::styled(right_text, Style::default().fg(Theme::border())),
+        ]);
+
+        let statusbar = Paragraph::new(line);
         frame.render_widget(statusbar, area);
     }
 
-    /// Get context-aware shortcuts based on focused panel
-    fn get_context_shortcuts(&self) -> Vec<String> {
-        let mut shortcuts = Vec::new();
-        
-        // Global shortcuts
-        shortcuts.push("Tab: Host".to_string());
-        shortcuts.push("↑↓/jk: Select".to_string());
-        shortcuts.push("r: Rebuild".to_string());
-        shortcuts.push("B: Backup".to_string());
-        shortcuts.push("s/S: Start/Stop".to_string());
-        shortcuts.push("L: Logs".to_string());
-        shortcuts.push("t: Terminal".to_string());
-        shortcuts.push("w: Wake".to_string());
-        
-        // Always show quit
-        shortcuts.push("q: Quit".to_string());
-        
-        shortcuts
+    /// Get local IP address of the dashboard
+    fn get_local_ip() -> String {
+        use std::net::UdpSocket;
+
+        // Try to get local IP by creating a UDP socket
+        // This doesn't actually send data, just determines routing
+        if let Ok(socket) = UdpSocket::bind("0.0.0.0:0") {
+            if socket.connect("8.8.8.8:80").is_ok() {
+                if let Ok(addr) = socket.local_addr() {
+                    return addr.ip().to_string();
+                }
+            }
+        }
+        "N/A".to_string()
     }
 
     fn render_system_panel(&mut self, frame: &mut Frame, area: Rect, _metric_store: &MetricStore) {