🤖 Add Initialization Check to Prevent Duplicate Setup

[sentry-autofix]

👋 Hi there! This PR was automatically generated by Autofix 🤖

This fix was triggered by Jenn Mueng

This update introduces checks to ensure that certain initialization routines are only executed once per application context in three files: src/seer/db.py, src/celery_app/app.py, and src/seer/bootup.py. Each of these modifications adds a check for a specific attribute on the application or function (_db_initialized for the database, _config_initialized for the Celery app, and _initialized for the bootup function) to prevent reinitialization. This change enhances performance by preventing redundant configurations and ensures that application state is maintained correctly across different parts of the application.

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🤓 Stats for the nerds:

Run ID: 1061
Prompt tokens: 746312
Completion tokens: 25959
Total tokens: 772271