Add responsive column visibility to service panel

Service panel now dynamically shows/hides columns based on terminal width:
- ≥80 chars: All columns (Name, Status, RAM, Uptime, Restarts)
- ≥60 chars: Hide Restarts only
- ≥45 chars: Hide Uptime and Restarts
- <45 chars: Minimal (Name and Status only)

Improves dashboard usability on smaller terminal sizes.

Cargo.lock

@@ -279,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.225"
+version = "0.1.226"
 dependencies = [
  "anyhow",
  "chrono",
@@ -301,7 +301,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.225"
+version = "0.1.226"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -325,7 +325,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.225"
+version = "0.1.226"
 dependencies = [
  "chrono",
  "serde",

agent/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-agent"
-version = "0.1.226"
+version = "0.1.227"
 edition = "2021"
 
 [dependencies]

dashboard/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard"
-version = "0.1.226"
+version = "0.1.227"
 edition = "2021"
 
 [dependencies]

dashboard/src/ui/widgets/services.rs

@@ -11,6 +11,59 @@ use tracing::debug;
 use crate::ui::theme::{Components, StatusIcons, Theme, Typography};
 use ratatui::style::Style;
 
+/// Column visibility configuration based on terminal width
+#[derive(Debug, Clone, Copy)]
+struct ColumnVisibility {
+    show_name: bool,
+    show_status: bool,
+    show_ram: bool,
+    show_uptime: bool,
+    show_restarts: bool,
+}
+
+impl ColumnVisibility {
+    /// Determine which columns to show based on available width
+    fn from_width(width: u16) -> Self {
+        if width >= 80 {
+            // Full layout: Name (25) + Status (10) + RAM (8) + Uptime (8) + Restarts (5) = 56 chars
+            Self {
+                show_name: true,
+                show_status: true,
+                show_ram: true,
+                show_uptime: true,
+                show_restarts: true,
+            }
+        } else if width >= 60 {
+            // Hide restarts: Name (25) + Status (10) + RAM (8) + Uptime (8) = 51 chars
+            Self {
+                show_name: true,
+                show_status: true,
+                show_ram: true,
+                show_uptime: true,
+                show_restarts: false,
+            }
+        } else if width >= 45 {
+            // Hide uptime and restarts: Name (25) + Status (10) + RAM (8) = 43 chars
+            Self {
+                show_name: true,
+                show_status: true,
+                show_ram: true,
+                show_uptime: false,
+                show_restarts: false,
+            }
+        } else {
+            // Minimal: Name (25) + Status (10) = 35 chars
+            Self {
+                show_name: true,
+                show_status: true,
+                show_ram: false,
+                show_uptime: false,
+                show_restarts: false,
+            }
+        }
+    }
+}
+
 /// Services widget displaying hierarchical systemd service statuses
 #[derive(Clone)]
 pub struct ServicesWidget {
@@ -76,7 +129,7 @@ impl ServicesWidget {
     }
 
     /// Format parent service line - returns text without icon for span formatting
-    fn format_parent_service_line(&self, name: &str, info: &ServiceInfo) -> String {
+    fn format_parent_service_line(&self, name: &str, info: &ServiceInfo, columns: ColumnVisibility) -> String {
         // Truncate long service names to fit layout (account for icon space)
         let short_name = if name.len() > 22 {
             format!("{}...", &name[..19])
@@ -129,10 +182,25 @@ impl ServicesWidget {
             }
         });
 
-        format!(
-            "{:<23} {:<10} {:<8} {:<8} {:<5}",
-            short_name, status_str, memory_str, uptime_str, restart_str
-        )
+        // Build format string based on column visibility
+        let mut parts = Vec::new();
+        if columns.show_name {
+            parts.push(format!("{:<23}", short_name));
+        }
+        if columns.show_status {
+            parts.push(format!("{:<10}", status_str));
+        }
+        if columns.show_ram {
+            parts.push(format!("{:<8}", memory_str));
+        }
+        if columns.show_uptime {
+            parts.push(format!("{:<8}", uptime_str));
+        }
+        if columns.show_restarts {
+            parts.push(format!("{:<5}", restart_str));
+        }
+
+        parts.join(" ")
     }
 
 
@@ -476,11 +544,28 @@ impl ServicesWidget {
             .constraints([Constraint::Length(1), Constraint::Min(0)])
             .split(inner_area);
 
-        // Header
-        let header = format!(
-            "{:<25} {:<10} {:<8} {:<8} {:<5}",
-            "Service:", "Status:", "RAM:", "Uptime:", "↻:"
-        );
+        // Determine which columns to show based on available width
+        let columns = ColumnVisibility::from_width(inner_area.width);
+
+        // Build header based on visible columns
+        let mut header_parts = Vec::new();
+        if columns.show_name {
+            header_parts.push(format!("{:<25}", "Service:"));
+        }
+        if columns.show_status {
+            header_parts.push(format!("{:<10}", "Status:"));
+        }
+        if columns.show_ram {
+            header_parts.push(format!("{:<8}", "RAM:"));
+        }
+        if columns.show_uptime {
+            header_parts.push(format!("{:<8}", "Uptime:"));
+        }
+        if columns.show_restarts {
+            header_parts.push(format!("{:<5}", "↻:"));
+        }
+        let header = header_parts.join(" ");
+
         let header_para = Paragraph::new(header).style(Typography::muted());
         frame.render_widget(header_para, content_chunks[0]);
 
@@ -492,11 +577,11 @@ impl ServicesWidget {
         }
 
         // Render the services list
-        self.render_services(frame, content_chunks[1], is_focused);
+        self.render_services(frame, content_chunks[1], is_focused, columns);
     }
 
     /// Render services list
-    fn render_services(&mut self, frame: &mut Frame, area: Rect, is_focused: bool) {
+    fn render_services(&mut self, frame: &mut Frame, area: Rect, is_focused: bool, columns: ColumnVisibility) {
         // Build hierarchical service list for display
         let mut display_lines: Vec<(String, Status, bool, Option<(ServiceInfo, bool)>)> = Vec::new();
 
@@ -506,7 +591,7 @@ impl ServicesWidget {
 
         for (parent_name, parent_info) in parent_services {
             // Add parent service line
-            let parent_line = self.format_parent_service_line(parent_name, parent_info);
+            let parent_line = self.format_parent_service_line(parent_name, parent_info, columns);
             display_lines.push((parent_line, parent_info.widget_status, false, None));
 
             // Add sub-services for this parent (if any)

shared/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-shared"
-version = "0.1.226"
+version = "0.1.227"
 edition = "2021"
 
 [dependencies]