fix: standarize hasInternetCredentials (#663)

* fix: standarize hasInternetCredentials

* chore: improve types

android/src/main/java/com/oblador/keychain/KeychainModule.kt

@@ -371,10 +371,7 @@ class KeychainModule(reactContext: ReactApplicationContext) :
       promise.resolve(false)
       return
     }
-    val results = Arguments.createMap()
-    results.putString(Maps.SERVICE, alias)
-    results.putString(Maps.STORAGE, resultSet.cipherStorageName)
-    promise.resolve(results)
+    promise.resolve(true)
   }
 
   @ReactMethod

src/index.ts

@@ -349,17 +349,15 @@ export function getAllGenericPasswordServices(): Promise<string[]> {
  *
  * @param {string} server - The server URL.
  *
- * @returns {Promise<false | Result>} Resolves to an object containing `service` and `storage` when successful, or `false` if not found.
+ * @returns {Promise<boolean>} Resolves to `true` if internet credentials exist, otherwise `false`.
  *
  * @example
  * ```typescript
  * const hasCredentials = await Keychain.hasInternetCredentials('https://example.com');
  * console.log('Internet credentials exist:', hasCredentials);
  * ```
  */
-export function hasInternetCredentials(
-  server: string
-): Promise<false | Result> {
+export function hasInternetCredentials(server: string): Promise<boolean> {
   return RNKeychainManager.hasInternetCredentialsForServer(server);
 }