Fix system panel layout and switch to version-based agent reporting

- Remove auto-close behavior from terminal popup for manual review
- Fix system panel to show correct NixOS section layout
- Add missing Active users line after Agent version
- Switch agent version from nix store hash to actual version number (v0.1.11)
- Display full version string without truncation for clear version tracking

agent/src/agent.rs

@@ -199,25 +199,10 @@ impl Agent {
         )
     }
 
-    /// Get agent version from executable path
+    /// Get agent version from Cargo package version
     fn get_agent_version(&self) -> String {
-        match std::env::current_exe() {
-            Ok(exe_path) => {
-                let exe_str = exe_path.to_string_lossy();
-                
-                // Extract Nix store hash from path
-                if let Some(hash_part) = exe_str.strip_prefix("/nix/store/") {
-                    if let Some(hash) = hash_part.split('-').next() {
-                        if hash.len() >= 8 {
-                            return hash[..8].to_string();
-                        }
-                    }
-                }
-                
-                "unknown".to_string()
-            },
-            Err(_) => "unknown".to_string()
-        }
+        // Use the version from Cargo.toml (e.g., "0.1.11")
+        format!("v{}", env!("CARGO_PKG_VERSION"))
     }
 
     async fn handle_commands(&mut self) -> Result<()> {

dashboard/src/app.rs

@@ -281,10 +281,7 @@ impl Dashboard {
                     if let Some(ref mut tui_app) = self.tui_app {
                         tui_app.add_terminal_output(&cmd_output.hostname, cmd_output.output_line);
                         
-                        // Close popup when command completes
-                        if cmd_output.is_complete {
-                            tui_app.close_terminal_popup(&cmd_output.hostname);
-                        }
+                        // Note: Popup stays open for manual review - close with ESC/Q
                     }
                 }
                 

dashboard/src/ui/mod.rs

@@ -226,7 +226,7 @@ impl TuiApp {
                 // Add NixOS metrics - using exact matching for build display fix
                 let nixos_metrics: Vec<&Metric> = all_metrics
                     .iter()
-                    .filter(|m| m.name == "system_nixos_build" || m.name == "system_active_users" || m.name == "system_agent_hash")
+                    .filter(|m| m.name == "system_nixos_build" || m.name == "system_active_users" || m.name == "agent_version")
                     .copied()
                     .collect();
                 system_metrics.extend(nixos_metrics);

dashboard/src/ui/widgets/system.rs

@@ -427,25 +427,15 @@ impl SystemWidget {
             Span::styled(format!("Build: {}", build_text), Typography::secondary())
         ]));
         
-        let config_text = self.config_hash.as_deref().unwrap_or("unknown");
+        let agent_version_text = self.agent_hash.as_deref().unwrap_or("unknown");
         lines.push(Line::from(vec![
-            Span::styled(format!("Config: {}", config_text), Typography::secondary())
+            Span::styled(format!("Agent: {}", agent_version_text), Typography::secondary())
         ]));
         
         let users_text = self.active_users.as_deref().unwrap_or("unknown");
         lines.push(Line::from(vec![
             Span::styled(format!("Active users: {}", users_text), Typography::secondary())
         ]));
-        
-        let agent_hash_text = self.agent_hash.as_deref().unwrap_or("unknown");
-        let short_hash = if agent_hash_text.len() > 8 && agent_hash_text != "unknown" {
-            &agent_hash_text[..8]
-        } else {
-            agent_hash_text
-        };
-        lines.push(Line::from(vec![
-            Span::styled(format!("Agent: {}", short_hash), Typography::secondary())
-        ]));
 
         // CPU section
         lines.push(Line::from(vec![