Async + Multi Cache (#1741)

* fix: handle invalid signatureKeyPublic types in sender-key-state

- added extra check to ensure signatureKeyPublic is either a base64 string or a Buffer
- fallback to empty buffer when unexpected object type is received
- prevents ERR_INVALID_ARG_TYPE error in Buffer.from

* adjusted based on  @jlucaso1 recommmendation

* fix: handle chain key objects for skmsg group message decryption

previously, some sender chain keys were stored or retrieved as plain objects
(e.g. { '0': 85, '1': 100, ... }) instead of Buffers. this caused
"ERR_INVALID_ARG_TYPE" during initial decryption of skmsg group messages.

this fixes any chain key object is converted to a proper Buffer
before being passed to SenderChainKey.

* fix: add more robust checks and fallbacks

* feat: async cache

feat: async caching

* fix: linting issues

* fix: mget logic

---------

Co-authored-by: αѕтяσχ11 <devastro0010@gmail.com>

src/Utils/auth-utils.ts

@@ -76,7 +76,7 @@ export function makeCacheableSignalKeyStore(
 				let keys = 0
 				for (const type in data) {
 					for (const id in data[type as keyof SignalDataTypeMap]) {
-						cache.set(getUniqueId(type, id), data[type as keyof SignalDataTypeMap]![id]!)
+						await cache.set(getUniqueId(type, id), data[type as keyof SignalDataTypeMap]![id]!)
 						keys += 1
 					}
 				}
@@ -87,7 +87,7 @@ export function makeCacheableSignalKeyStore(
 			})
 		},
 		async clear() {
-			cache.flushAll()
+			await cache.flushAll()
 			await store.clear?.()
 		}
 	}