fix(desktop): log native token decryption failures

apps/desktop/electron/main.ts

@@ -6274,6 +6274,10 @@ function _loadNativeTokens(baseUrl: string): NativeTokenSet | null {
     const plaintext = decryptDesktopSecret(secret)
 
     if (!plaintext) {
+      rememberLog(
+        `[native-oauth] failed to decrypt stored tokens for ${baseUrl}; keeping stored entry for retry`
+      )
+
       return null
     }