* feat(file_store): add concurrency protection to LocalFileStore.dump()
* feat(file_catalog): replace file_store with file_catalog in DreamStep
* feat: add ChannelSink for Claude Code channel notifications
* feat(auto-memory): add transcript_path support and enhance metadata
* feat(application): add thread pool support and background job threading capabilities
- Integrate ThreadPoolExecutor for shared thread pool management in application context
- Add thread_pool_max_workers configuration option with default value of 0 (disabled)
- Implement thread pool creation and shutdown in application lifecycle methods
- Add use_thread_pool option to background job configuration for thread-based execution
- Support both asyncio event loop and threading event for background job stop mechanism
- Implement _run_in_thread method for running supervisors in dedicated threads
- Modify embedding models to use serial batching instead of concurrent batching
- Remove max_concurrency parameter from base embedding model component
- Update embedding model documentation to reflect serial batching implementation
- Add pyproject.toml with project metadata, dependencies, and build configuration
* refactor(job): simplify background job thread execution
- Replace separate _run_in_thread method with direct lambda execution
- Remove unnecessary ensure_future wrapper for thread pool execution
- Simplify asyncio event loop usage in thread pool mode
- Maintain same background job functionality with cleaner implementation
- Remove redundant method definition and streamline execution flow
* fix(bm25_index): 修正BM25索引计算中的文档长度归一化问题
修复了在计算BM25相似度时对文档长度进行不正确归一化的bug，确保所有查询都能得到准确的相关性评分。
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* refactor(steps): Rename and adjust indexing step logic
- Rename `scan_changes.py` and `reindex.py` to `clear_and_scan.py`
- Update implementation details of `ScanChangesStep` and `ClearAndScanStep`
- Modify the scheduling mechanism in `WatchChangesStep`
- Adjust step registration and parameter configuration in config files
- Update related tests to align with the new interface changes
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* feat(daily): replace daily CRUD operations with slug provisioning approach
* refactor(tests): migrate CRUD step tests from HTTP server to direct LocalFileStore
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---------
Co-authored-by: huangsen <huangsen.huang@alibaba-inc.com>
