fix(openclaw): address code review findings across P0-P3 issues

- Add 25 missing i18n keys for OpenClawFormFields in all 3 locales (P0)
- Replace key={index} with stable crypto.randomUUID() keys in EnvPanel,
  ToolsPanel, and OpenClawFormFields to prevent list state bugs (P1)
- Exclude openclaw from ProxyToggle/FailoverToggle in App.tsx (P1)
- Add merge_additive_config() for openclaw/opencode deep link imports (P1)
- Normalize serde(flatten) field naming to `extra` + HashMap (P2)
- Add directory existence check in remove_openclaw_provider_from_live (P2)
- Remove dead code in import_default_config and openclaw API methods (P2)
- Add duplicate key validation in EnvPanel before save (P2)
- Add openclawConfigDir to Settings type (P2)
- Add staleTime to OpenClaw query hooks (P3)
- Fix type-unsafe delete via destructuring in mutations.ts (P3)

src-tauri/src/services/provider/live.rs

@@ -478,40 +478,9 @@ pub fn import_default_config(state: &AppState, app_type: AppType) -> Result<bool
                 "config": config_obj
             })
         }
-        AppType::OpenCode => {
-            // OpenCode uses additive mode - import from live is not the same pattern
-            // For now, return an empty config structure
-            use crate::opencode_config::{get_opencode_config_path, read_opencode_config};
-
-            let config_path = get_opencode_config_path();
-            if !config_path.exists() {
-                return Err(AppError::localized(
-                    "opencode.live.missing",
-                    "OpenCode 配置文件不存在",
-                    "OpenCode configuration file is missing",
-                ));
-            }
-
-            // For OpenCode, we return the full config - but note that OpenCode
-            // uses additive mode, so importing defaults works differently
-            read_opencode_config()?
-        }
-        AppType::OpenClaw => {
-            // OpenClaw uses additive mode - import from live is not the same pattern
-            use crate::openclaw_config::{get_openclaw_config_path, read_openclaw_config};
-
-            let config_path = get_openclaw_config_path();
-            if !config_path.exists() {
-                return Err(AppError::localized(
-                    "openclaw.live.missing",
-                    "OpenClaw 配置文件不存在",
-                    "OpenClaw configuration file is missing",
-                ));
-            }
-
-            // For OpenClaw, we return the full config - but note that OpenClaw
-            // uses additive mode, so importing defaults works differently
-            read_openclaw_config()?
+        // OpenCode and OpenClaw use additive mode and are handled by early return above
+        AppType::OpenCode | AppType::OpenClaw => {
+            unreachable!("additive mode apps are handled by early return")
         }
     };
 
@@ -762,6 +731,12 @@ pub fn import_openclaw_providers_from_live(state: &AppState) -> Result<usize, Ap
 pub fn remove_openclaw_provider_from_live(provider_id: &str) -> Result<(), AppError> {
     use crate::openclaw_config;
 
+    // Check if OpenClaw config directory exists
+    if !openclaw_config::get_openclaw_dir().exists() {
+        log::debug!("OpenClaw config directory doesn't exist, skipping removal of '{provider_id}'");
+        return Ok(());
+    }
+
     openclaw_config::remove_provider(provider_id)?;
     log::info!("OpenClaw provider '{provider_id}' removed from live config");