This PR enhances performance of Celery tasks by implementing connection pooling. It reuses the Flask application instance across worker processes instead of creating a new one for each task execution.

Key improvements:

• Reduces database connection overhead
• Minimizes Flask app initialization costs
• Uses worker_process_init signal to initialize app at worker startup
• Provides fallback lazy loading for edge cases
• These changes significantly reduce resource consumption for high-frequency task processing.

Jira Issue

1. [Add links to jira issues]

Description

[Brief description of changes]

Checklist

• Tests added/updated
• Documentation updated (if needed)
• New strings prepared for translations

API Changes (if applicable)

• Permissions checked
• Endpoint tests added

Additional Notes

[Any other relevant information]