#### PR Dependency Tree
* **PR #14783** 👈
This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)
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## Summary by CodeRabbit
* **New Features**
* Configurable request timeout for calendar integrations.
* Calendar polling now enqueues per-subscription sync jobs (larger
batch) for improved throughput.
* **Bug Fixes / Improvements**
* Persisted next-sync timestamps and retry counts for more reliable
scheduling and retry behavior.
* Exponential backoff and webhook renewal now update scheduling
consistently.
* **Refactor**
* Calendar sync flow moved to a job-queue-driven design for better
concurrency and observability.
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## Summary by CodeRabbit
- **Improvements**
- Increased the default concurrency for background tasks, enhancing processing efficiency.
- Improved handling of empty or unsupported documents to ensure consistent processing.
- Optimized document filtering to exclude certain documents from processing, improving performance.
- **Bug Fixes**
- Enhanced detection of empty document summaries, reducing errors during processing.
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## Summary by CodeRabbit
- **New Features**
- Implemented an exponential backoff retry strategy for job queues, resulting in progressively longer wait times between retry attempts.
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fix AI-127
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## Summary by CodeRabbit
- **New Features**
- Added automated event handling for workspace updates and document embedding, streamlining document embedding workflows.
- Introduced detection and queuing of documents needing embedding, excluding ignored documents.
- **Improvements**
- Enhanced performance of embedding-related searches by filtering results at the database level.
- Increased concurrency for embedding job processing to improve throughput.
- **Bug Fixes**
- Improved error handling and fallback for missing document titles during embedding.
- Added safeguards to skip invalid embedding jobs based on document identifiers.
- **Tests**
- Expanded test coverage for document embedding and ignored document filtering.
- Updated end-to-end tests to use dynamic content for improved reliability.
- Added synchronization waits in document creation utilities to improve test stability.
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DarkSky