feat(core): integrate realtime features (#15003)

packages/backend/server/src/base/cache/index.ts

@@ -10,5 +10,5 @@ import { CacheInterceptor } from './interceptor';
 })
 export class CacheModule {}
 export { Cache, SessionCache };
-
 export { CacheInterceptor, MakeCache, PreventCache } from './interceptor';
+export { isValidCacheTtl } from './provider';

packages/backend/server/src/base/cache/provider.ts

@@ -7,6 +7,10 @@ export interface CacheSetOptions {
   ttl?: number;
 }
 
+export function isValidCacheTtl(ttl: unknown): ttl is number {
+  return typeof ttl === 'number' && Number.isSafeInteger(ttl) && ttl > 0;
+}
+
 export class CacheProvider {
   constructor(private readonly redis: Redis) {}
 

packages/backend/server/src/base/index.ts

@@ -1,6 +1,7 @@
 export {
   Cache,
   CacheInterceptor,
+  isValidCacheTtl,
   MakeCache,
   PreventCache,
   SessionCache,