Update code standards to prohibit inline imports and ensure all imports are at the top of the file

.github/skills/code-standards/SKILL.md

@@ -23,6 +23,7 @@ description: NetAlertX coding standards and conventions. Use this when writing c
 - use environment variables for runtime paths, never hardcode paths or use relative paths
 - follow existing code style and structure, and ensure backward compatibility with existing installations when submitting PRs
 - all code needs to be scalable to handle large networks with thousands of devices (10k+) without performance degradation
+- no inline imports, all imports must be at the top of the file
 
 
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