create-a-container: Depend directly on Authentication and do not invoke as cli

[runleveldev]

Issue: Replace CLI invocation of Node script with direct module import and function call

Description:
The current implementation executes a Node.js script as a separate process:

const runner = spawn('node', ['/root/bin/js/runner.js', 'authenticateUser', username, password]);

This approach treats a JavaScript file as a command-line tool rather than a reusable module.

Recommendation:
Refactor runner.js to export its functions and import it directly where needed, for example:

const { authenticateUser } = require('/root/bin/js/runner');
authenticateUser(username, password);

Benefits:

• Eliminates unnecessary process spawning overhead
• Improves performance and error handling
• Enables direct access to function results and exceptions
• Simplifies testing and maintenance