* feat: add thread metadata index for improved performance in thread listing
- Implemented a new SQLite index on the `checkpoints` table to optimize thread listing queries by indexing relevant metadata fields.
- Updated the `list_threads` function to ensure the index is created if it does not exist.
- Added a test to verify the creation of the metadata index during thread listing.
feat: enhance workspace sidecar management with owner tracking
- Modified the workspace sidecar to include `owner_pids` to track the current process owners.
- Updated tests to validate the new owner tracking functionality and ensure proper behavior when managing workspace sidecars.
chore: introduce model registry for streamlined model management
- Created a new `registry.py` file to maintain a comprehensive model registry, including model names, IDs, providers, and routing tables.
- Added functions to retrieve models by provider and list available models, enhancing the modularity and maintainability of model management.
* feat: enhance workspace sidecar management and improve thread metadata indexing
* fix(tests): ensure sidecar correctly registers owner with original workspace and pid
* refactor: simplify workspace sidecar management by removing owner tracking
* feat(server): add commands to manage background langgraph dev server
- Introduced `server_app` for managing the langgraph dev server with commands to check status and stop the server.
- Enhanced workspace sidecar management to include configuration fingerprint for drift detection.
- Updated deployment functions to handle server configuration and state more effectively.
* feat(server): enhance server status command to display PID with stale record warning
* feat(langgraph_dev): exclusion-set config fingerprint, webui keepalive, unified stop guidance
* fix(cli): platform-specific manual-stop hint; document keepalive endpoint-change limitation
Xi Zhang
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