Prepares infrastructure for Staging resource reconciliation

[DanielBlei]

Pull Request

Description

Adds status tracking helpers (InternalStatus, SetInternalStatus, SetStagingStatus), resource validation functions for ingestion resources (CronJob, Job, Trigger), and component creation utilities.

Implements observed generation tracking to prevent unnecessary reconciliations and initial bootstrap mode support for CronJob creation.

Implementation Notes

• Uses observed generation pattern to skip reconciliations when only status changes
• Creates deep copy before status updates for safe patching
• Bootstrap mode currently supports CronJob creation only (Job/Trigger marked as TODO)
• Component helpers apply default resource requirements when not specified
• Controller filters events to reconcile only on spec/annotation changes, not status updates

Testing

• Code builds and runs locally
• Relevant tests added or updated
• Manual/automated tests performed

Checklist

• Code style is consistent with the project
• Documentation updated if needed
• Ready for review

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Thank you for your contribution!