This commit addresses the issue of duplicate jobs being created by the SuperOffice connector.
The root cause was identified as a race condition where SuperOffice would send multiple webhooks in quick succession for the same entity, leading to multiple identical jobs in the queue.
The solution involves several layers of improvement:
1. **Ingress De-duplication:** The now checks for existing jobs for the same entity *before* adding a new job to the queue. This is the primary fix and prevents duplicates at the source.
2. **DB Schema Enhancement:** The table schema in was extended with an column to allow for reliable and efficient checking of duplicate entities.
3. **Improved Logging:** The log messages in for job retries (e.g., when waiting for the Company Explorer) have been made more descriptive to avoid confusion and false alarms.
