Fix coding standards violations in AI Talk With Node module

Problem/Motivation

The AI Talk With Node module contains numerous coding standards violations that need to be addressed to comply with Drupal coding standards. These include issues with documentation, whitespace, indentation, unused use statements, and array formatting. Fixing these issues will improve code quality, maintainability, and ensure the module follows Drupal best practices.

Steps to reproduce

Install PHP_CodeSniffer and the Drupal Coder module
Run PHPCS against the AI Talk With Node module with the command:
phpcs --standard=Drupal modules/ai_talk_with_node
Observe 62 errors and 10 warnings across 4 files

Proposed resolution

Fix all coding standards violations using a combination of automated fixes with PHPCBF and manual corrections. The issues can be categorized as follows:
Automated fixes (49 violations):
Run PHPCBF to automatically fix spacing, indentation, and formatting issues

Manual fixes (23 violations):
Add missing variable documentation in AiTalkWIthNodeController.php
Add proper parameter documentation in function comments
Fix parameter name mismatches in documentation
Address line length issues by refactoring long lines
Fix remaining documentation issues

Remaining tasks

• Run PHPCBF to automatically fix the 49 violations it can address
• Manually fix the remaining 23 violations
• Run PHPCS again to verify all issues are resolved
• Submit patch for review

User interface changes

None. This issue addresses code quality only and has no impact on the user interface.

API changes

None. The changes are purely related to code style and documentation and do not affect the module's functionality or API.

Data model changes

None. This issue only addresses code style violations and does not modify the data model.