fix: device ID 상수로

Author: Jihyun247

Projects/Feature/SplashFeature/Sources/SplashCore.swift

@@ -33,6 +33,8 @@ public struct SplashCore {
 
   public init() { }
 
+  let deviceIDKey =  "mohanyang_keychain_device_id"
+
   @Dependency(APIClient.self) var apiClient
   @Dependency(AuthService.self) var authService
   @Dependency(DatabaseClient.self) var databaseClient
@@ -60,7 +62,7 @@ public struct SplashCore {
 
 extension SplashCore {
   private func checkDeviceIDExist() -> Effect<Action> {
-    let deviceID = keychainClient.read(key: "mohanyang_keychain_device_id") ?? getDeviceUUID()
+    let deviceID = keychainClient.read(key: deviceIDKey) ?? getDeviceUUID()
     return login(deviceID: deviceID)
   }