feat: add makeCacheableSignalKeyStore util

src/Types/Auth.ts

@@ -69,6 +69,8 @@ type Awaitable<T> = T | Promise<T>
 export type SignalKeyStore = {
     get<T extends keyof SignalDataTypeMap>(type: T, ids: string[]): Awaitable<{ [id: string]: SignalDataTypeMap[T] }>
     set(data: SignalDataSet): Awaitable<void>
+    /** clear all the data in the store */
+    clear?(): Awaitable<void>
 }
 
 export type SignalKeyStoreWithTransaction = SignalKeyStore & {