- Introduced `ComponentRegistry` for managing plugin components with support for registration, enabling/disabling, and querying by type and plugin.
- Added `EventDispatcher` to handle event distribution to registered event handlers, supporting both blocking and non-blocking execution.
- Implemented `WorkflowExecutor` to manage a linear workflow execution across multiple stages, including command routing and error handling.
- Created `ManifestValidator` for validating plugin manifests against required fields and version compatibility.
- Updated `RPCClient` to use `MsgPackCodec` for message encoding.
- Enhanced `PluginRunner` to support lifecycle hooks for plugins, including `on_load` and `on_unload`.
- Added sys.path isolation to restrict plugin access to only necessary directories.
make LLM task config resolution dynamic in LLMRequest
load model clients on demand from latest config
clear client instance cache on config reload
remove stale module-level model_config usage in llm_api
add hot-reload tests for LLM/config watcher flow
- Test field descriptions from field_docs
- Test json_schema_extra merging
- Test Pydantic constraints mapping
- Test nested model schema handling
- Test fields without extra metadata
All 5 tests passing. Completes Task 7 of webui-config-visualization-refactor plan.
