Fix polling interval settings and add release build signing

- Fix polling interval not reflecting saved value (use SharingStarted.Eagerly)
- Add release build signing configuration with keystore
- Add key.properties to .gitignore for security
- Add ProGuard rules for JSpecify annotations

.gitignore

@@ -19,6 +19,9 @@ captures/
 *.jks
 *.keystore
 
+# Key properties (contains sensitive signing info)
+app/key.properties
+
 # External native build folder generated in Android Studio 2.2 and later
 .externalNativeBuild
 .cxx/

app/build.gradle.kts

@@ -1,3 +1,14 @@
+import java.util.Properties
+import java.io.FileInputStream
+
+// Load keystore properties
+val keystorePropertiesFile = rootProject.file("app/key.properties")
+val keystoreProperties = Properties()
+if (keystorePropertiesFile.exists()) {
+    keystoreProperties.load(FileInputStream(keystorePropertiesFile))
+}
+
+
 plugins {
     id("com.android.application")
     id("org.jetbrains.kotlin.android")
@@ -22,6 +33,15 @@ android {
  }
  }
 
+ signingConfigs {
+ create("release") {
+ keyAlias = keystoreProperties["keyAlias"] as String?
+ keyPassword = keystoreProperties["keyPassword"] as String?
+ storeFile = keystoreProperties["storeFile"]?.let { file("$it") }
+ storePassword = keystoreProperties["storePassword"] as String?
+ }
+ }
+
  buildTypes {
  release {
  isMinifyEnabled = true
@@ -30,6 +50,7 @@ android {
  getDefaultProguardFile("proguard-android-optimize.txt"),
  "proguard-rules.pro"
  )
+ signingConfig = signingConfigs.getByName("release")
  }
  debug {
  isMinifyEnabled = false

app/proguard-rules.pro

@@ -16,3 +16,7 @@
 # Kotlin Coroutines
 -keepnames class kotlinx.coroutines.internal.MainDispatcherFactory {}
 -keepnames class kotlinx.coroutines.CoroutineExceptionHandler {}
+
+# JSpecify annotations (for Jsoup compatibility)
+-dontwarn org.jspecify.annotations.**
+

app/src/main/java/com/hotdeal/alarm/presentation/main/MainViewModel.kt

@@ -26,9 +26,9 @@ class MainViewModel @Inject constructor(
     private val _uiState = MutableStateFlow<MainUiState>(MainUiState.Loading)
     val uiState: StateFlow<MainUiState> = _uiState.asStateFlow()
     
-    // 폴<EFBFBD> 주기
+    // 폴링 주기 (저장된 값 즉시 반영)
     val pollingInterval: StateFlow<Int> = appSettings.pollingInterval
-        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), 2)
+        .stateIn(viewModelScope, SharingStarted.Eagerly, 2)
     
     init {
         initializeApp()