issue: #43933
Fix the issue where QueryCoord restart leads to node status
inconsistency in resource manager, causing segment loading failures and
incorrect resource group assignments.
Changes include:
- Add CheckNodesInResourceGroup method to sync node status after restart
- Implement proper cleanup of offline/stopping nodes from resource
groups
- Add automatic discovery and assignment of new nodes to resource groups
- Enhance rewatchNodes process to include resource manager
synchronization
This ensures resource manager maintains correct node status and
assignments even after QueryCoord restarts, preventing segment loading
failures and improving system reliability.
Signed-off-by: Wei Liu <wei.liu@zilliz.com>