fix(openclaw): address code review findings for robustness

- 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

src-tauri/src/lib.rs

@@ -501,7 +501,7 @@ pub fn run() {
                     log::info!("✓ Imported {count} OpenCode provider(s) from live config");
                 }
                 Ok(_) => log::debug!("○ No OpenCode providers found to import"),
-                Err(e) => log::debug!("○ Failed to import OpenCode providers: {e}"),
+                Err(e) => log::warn!("○ Failed to import OpenCode providers: {e}"),
             }
 
             // 2.2 OMO 配置导入（当数据库中无 OMO provider 时，从本地文件导入）
@@ -534,7 +534,7 @@ pub fn run() {
                     log::info!("✓ Imported {count} OpenClaw provider(s) from live config");
                 }
                 Ok(_) => log::debug!("○ No OpenClaw providers found to import"),
-                Err(e) => log::debug!("○ Failed to import OpenClaw providers: {e}"),
+                Err(e) => log::warn!("○ Failed to import OpenClaw providers: {e}"),
             }
 
             // 3. 导入 MCP 服务器配置（表空时触发）