fromJSON shoule be catch

We should use `fromJSON` with try-catch.
because, json schmea will be changed at sometimes.
To prevent white screen by chaning schema.
```js
try { fromJSON } catch(){}
```

Locate the TypeScript call sites for `fromJSON` in this Electron client and inspect how schema data reaches the UI. Reproduce the schema-change failure if possible, then verify that malformed or changed JSON no longer produces a white screen while existing behavior remains intact.

Written by the indexing model from the issue text.