feat: use configuration flow if not existing/not correct

main.py

@@ -1,13 +1,42 @@
 #!/usr/bin/env python3
 """Auditui entrypoint."""
 
+import sys
+from pathlib import Path
+
 from auditui.app import Auditui
 from auditui.auth import authenticate
+from auditui.configure import configure
+from auditui.constants import AUTH_PATH
 
 
 def main() -> None:
     """Authenticate and launch the app."""
-    auth, client = authenticate()
+    if len(sys.argv) > 1 and sys.argv[1] == "configure":
+        try:
+            configure()
+            print("Configuration completed successfully.")
+        except Exception as exc:
+            print(f"Configuration error: {exc}")
+            sys.exit(1)
+        return
+    
+    config_dir = AUTH_PATH.parent
+    
+    if not config_dir.exists():
+        print("No configuration yet, please run 'auditui configure' to create it")
+        sys.exit(1)
+    
+    try:
+        auth, client = authenticate()
+    except Exception as exc:
+        print(f"Authentication error: {exc}")
+        if not AUTH_PATH.exists():
+            print("No configuration yet, please run 'auditui configure' to create it")
+        else:
+            print("Please re-authenticate by running 'auditui configure'")
+        sys.exit(1)
+    
     app = Auditui(auth=auth, client=client)
     app.run()