feat: enhance command execution with error handling and add Ansible task for Docker repository checkout

bin/helpers/functions.py

@@ -5,6 +5,7 @@ import sys
 import subprocess
 import math
 import random
+import shutil
 try:
     import pyfiglet
 except ImportError:
@@ -79,15 +80,20 @@ def logo(continue_after=False):
             sys.exit(0)
     except Exception as e:
         printfe("red", f"Error displaying logo: {e}")
-
 def run_command(command, shell=False):
     """Run a shell command and return the result"""
     try:
+        if not shell and not shutil.which(command[0]):
+            return False, f"Command '{command[0]}' not found"
+        
         result = subprocess.run(command, shell=shell, check=True, text=True, 
                               stdout=subprocess.PIPE, stderr=subprocess.PIPE)
         return True, result.stdout.strip()
     except subprocess.CalledProcessError as e:
         return False, e.stderr.strip()
+    except FileNotFoundError:
+        return False, f"Command '{command[0]}' not found"
+        return False, e.stderr.strip()
 
 def ensure_dependencies():
     """Check and install required dependencies for the dotfiles system"""