fix(openclaw): update button state and toast message after switch

Add cache invalidation for openclawLiveProviderIds in useSwitchProviderMutation
to ensure button state updates correctly after adding/removing providers.

Also fix toast message to show "已添加到配置" for OpenClaw (same as OpenCode).

src/lib/query/mutations.ts

@@ -174,6 +174,7 @@ export const useSwitchProviderMutation = (appId: AppId) => {
     onSuccess: async () => {
       await queryClient.invalidateQueries({ queryKey: ["providers", appId] });
 
+      // OpenCode/OpenClaw: also invalidate live provider IDs cache to update button state
       if (appId === "opencode") {
         await queryClient.invalidateQueries({
           queryKey: ["opencodeLiveProviderIds"],
@@ -182,6 +183,11 @@ export const useSwitchProviderMutation = (appId: AppId) => {
           queryKey: ["omo", "current-provider-id"],
         });
       }
+      if (appId === "openclaw") {
+        await queryClient.invalidateQueries({
+          queryKey: ["openclawLiveProviderIds"],
+        });
+      }
 
       try {
         await providersApi.updateTrayMenu();