Fix service panel column width calculation

Replace hardcoded terminal width thresholds with dynamic calculation
based on actual column requirements. Column visibility now adapts
correctly at 58, 52, 43, and 34 character widths instead of the
previous arbitrary 80, 60, 45 thresholds.

- Add width constants for each column (NAME=23, STATUS=10, etc)
- Calculate cumulative widths dynamically for each layout tier
- Ensure header and data formatting use consistent width values
- Fix service name truncation to respect calculated column width

Cargo.lock

@@ -279,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.226"
+version = "0.1.227"
 dependencies = [
  "anyhow",
  "chrono",
@@ -301,7 +301,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.226"
+version = "0.1.227"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -325,7 +325,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.226"
+version = "0.1.227"
 dependencies = [
  "chrono",
  "serde",

agent/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-agent"
-version = "0.1.227"
+version = "0.1.228"
 edition = "2021"
 
 [dependencies]

dashboard/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard"
-version = "0.1.227"
+version = "0.1.228"
 edition = "2021"
 
 [dependencies]

dashboard/src/ui/widgets/services.rs

@@ -22,10 +22,25 @@ struct ColumnVisibility {
 }
 
 impl ColumnVisibility {
+    /// Calculate actual width needed for all columns
+    const NAME_WIDTH: u16 = 23;
+    const STATUS_WIDTH: u16 = 10;
+    const RAM_WIDTH: u16 = 8;
+    const UPTIME_WIDTH: u16 = 8;
+    const RESTARTS_WIDTH: u16 = 5;
+    const COLUMN_SPACING: u16 = 1; // Space between columns
+
     /// Determine which columns to show based on available width
+    /// Priority order: Name > Status > RAM > Uptime > Restarts
     fn from_width(width: u16) -> Self {
-        if width >= 80 {
-            // Full layout: Name (25) + Status (10) + RAM (8) + Uptime (8) + Restarts (5) = 56 chars
+        // Calculate cumulative widths for each configuration
+        let minimal = Self::NAME_WIDTH + Self::COLUMN_SPACING + Self::STATUS_WIDTH; // 34
+        let with_ram = minimal + Self::COLUMN_SPACING + Self::RAM_WIDTH; // 43
+        let with_uptime = with_ram + Self::COLUMN_SPACING + Self::UPTIME_WIDTH; // 52
+        let full = with_uptime + Self::COLUMN_SPACING + Self::RESTARTS_WIDTH; // 58
+
+        if width >= full {
+            // Show all columns
             Self {
                 show_name: true,
                 show_status: true,
@@ -33,8 +48,8 @@ impl ColumnVisibility {
                 show_uptime: true,
                 show_restarts: true,
             }
-        } else if width >= 60 {
-            // Hide restarts: Name (25) + Status (10) + RAM (8) + Uptime (8) = 51 chars
+        } else if width >= with_uptime {
+            // Hide restarts
             Self {
                 show_name: true,
                 show_status: true,
@@ -42,8 +57,8 @@ impl ColumnVisibility {
                 show_uptime: true,
                 show_restarts: false,
             }
-        } else if width >= 45 {
-            // Hide uptime and restarts: Name (25) + Status (10) + RAM (8) = 43 chars
+        } else if width >= with_ram {
+            // Hide uptime and restarts
             Self {
                 show_name: true,
                 show_status: true,
@@ -52,7 +67,7 @@ impl ColumnVisibility {
                 show_restarts: false,
             }
         } else {
-            // Minimal: Name (25) + Status (10) = 35 chars
+            // Minimal: Name + Status only
             Self {
                 show_name: true,
                 show_status: true,
@@ -130,9 +145,11 @@ impl ServicesWidget {
 
     /// Format parent service line - returns text without icon for span formatting
     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])
+        // Truncate long service names to fit layout
+        // NAME_WIDTH - 3 chars for "..." = max displayable chars
+        let max_name_len = (ColumnVisibility::NAME_WIDTH - 3) as usize;
+        let short_name = if name.len() > max_name_len {
+            format!("{}...", &name[..max_name_len.saturating_sub(3)])
         } else {
             name.to_string()
         };
@@ -185,19 +202,19 @@ impl ServicesWidget {
         // Build format string based on column visibility
         let mut parts = Vec::new();
         if columns.show_name {
-            parts.push(format!("{:<23}", short_name));
+            parts.push(format!("{:<width$}", short_name, width = ColumnVisibility::NAME_WIDTH as usize));
         }
         if columns.show_status {
-            parts.push(format!("{:<10}", status_str));
+            parts.push(format!("{:<width$}", status_str, width = ColumnVisibility::STATUS_WIDTH as usize));
         }
         if columns.show_ram {
-            parts.push(format!("{:<8}", memory_str));
+            parts.push(format!("{:<width$}", memory_str, width = ColumnVisibility::RAM_WIDTH as usize));
         }
         if columns.show_uptime {
-            parts.push(format!("{:<8}", uptime_str));
+            parts.push(format!("{:<width$}", uptime_str, width = ColumnVisibility::UPTIME_WIDTH as usize));
         }
         if columns.show_restarts {
-            parts.push(format!("{:<5}", restart_str));
+            parts.push(format!("{:<width$}", restart_str, width = ColumnVisibility::RESTARTS_WIDTH as usize));
         }
 
         parts.join(" ")
@@ -550,19 +567,19 @@ impl ServicesWidget {
         // Build header based on visible columns
         let mut header_parts = Vec::new();
         if columns.show_name {
-            header_parts.push(format!("{:<25}", "Service:"));
+            header_parts.push(format!("{:<width$}", "Service:", width = ColumnVisibility::NAME_WIDTH as usize));
         }
         if columns.show_status {
-            header_parts.push(format!("{:<10}", "Status:"));
+            header_parts.push(format!("{:<width$}", "Status:", width = ColumnVisibility::STATUS_WIDTH as usize));
         }
         if columns.show_ram {
-            header_parts.push(format!("{:<8}", "RAM:"));
+            header_parts.push(format!("{:<width$}", "RAM:", width = ColumnVisibility::RAM_WIDTH as usize));
         }
         if columns.show_uptime {
-            header_parts.push(format!("{:<8}", "Uptime:"));
+            header_parts.push(format!("{:<width$}", "Uptime:", width = ColumnVisibility::UPTIME_WIDTH as usize));
         }
         if columns.show_restarts {
-            header_parts.push(format!("{:<5}", "↻:"));
+            header_parts.push(format!("{:<width$}", "↻:", width = ColumnVisibility::RESTARTS_WIDTH as usize));
         }
         let header = header_parts.join(" ");
 

shared/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-shared"
-version = "0.1.227"
+version = "0.1.228"
 edition = "2021"
 
 [dependencies]