added example for nerdctl + testing nerdctl (still a bug with running container from image)

src/virt/nerdctl/cmd.rs

@@ -0,0 +1,37 @@
+// File: /root/code/git.ourworld.tf/herocode/sal/src/virt/nerdctl/cmd.rs
+
+// Basic nerdctl operations for container management
+use std::process::Command;
+use crate::process::CommandResult;
+use super::NerdctlError;
+
+/// Execute a nerdctl command and return the result
+pub fn execute_nerdctl_command(args: &[&str]) -> Result<CommandResult, NerdctlError> {
+    let output = Command::new("nerdctl")
+        .args(args)
+        .output();
+    
+    match output {
+        Ok(output) => {
+            let stdout = String::from_utf8_lossy(&output.stdout).to_string();
+            let stderr = String::from_utf8_lossy(&output.stderr).to_string();
+            
+            let result = CommandResult {
+                stdout,
+                stderr,
+                success: output.status.success(),
+                code: output.status.code().unwrap_or(-1),
+            };
+            
+            if result.success {
+                Ok(result)
+            } else {
+                Err(NerdctlError::CommandFailed(format!("Command failed with code {}: {}", 
+                    result.code, result.stderr.trim())))
+            }
+        },
+        Err(e) => {
+            Err(NerdctlError::CommandExecutionFailed(e))
+        }
+    }
+}