Feat: Display release status in agent version history. (#13479)

### What problem does this PR solve?
Feat: Display release status in agent version history.

### Type of change


- [x] New Feature (non-breaking change which adds functionality)

---------

Co-authored-by: balibabu <assassin_cike@163.com>

web/src/custom.d.ts

@@ -1,3 +1,5 @@
+type Nullable<T> = T | null;
+
 declare module '*.md' {
   const content: string;
   export default content;