Centralize query keys and extract reusable hooks (useOpenClaw.ts),
replacing manual useState/useEffect load/save patterns in Env, Tools,
and AgentsDefaults panels for consistency with MCP/Skills modules.
- Fix EnvPanel visibleKeys using entry key name instead of array index
to prevent visibility state corruption after deletion
- Add NaN guard in AgentsDefaultsPanel numeric field parsing
- Validate provider id and models before importing from live config
- Upgrade import failure log level from debug to warn for OpenCode/OpenClaw