[soc-ai-plugin] Implement Dependency Injection and remove global state usage

[osmontero]

The soc-ai plugin relies on global state and lacks a proper dependency injection mechanism:

1. Global State: The plugin uses global variables for managing the internal alert queue and configuration state.
2. Lack of DI: Dependencies are accessed globally instead of being explicitly injected into the correlation logic.

Proposed Changes:

• Refactor the queue system to use an instance-based approach.
• Implement dependency injection for the configuration manager and the alert processor.
• Ensure all components receive their dependencies explicitly.