Describe the bug
The memory powermem plugin conflicts with the local powermem environment command, causing openclaw to use Database incorrectly

Environment
0.2.0
Fast reproduce steps
- Install the powermem environment locally (using oceanbase as the database) without starting powerme server
- Openclaw installs the memory powermem plugin
Expected behavior
Prioritize default configuration of plugins
Actual behavior
The local powermem command has overwritten the plugin
Additional context
N/A