refactor: remove Jsoup dependency + replace runBlocking with Flow

Step 7: Remove Jsoup
- Delete implementation(libs.jsoup) from build.gradle.kts
- Delete jsoup version + library from libs.versions.toml
- 0 imports of Jsoup in codebase, pure dead dependency

Step 8: ChartSettingsStore Flow
- Replace runBlocking getUseUtc8() with StateFlow useUtc8State
- UsageChartViewModel: setWorkspace() reads useUtc8Flow.first() async
- ChartUiState: add useUtc8Initialized flag to prevent double-load
- Remove runBlocking import from ChartSettingsStore

app/build.gradle.kts

@@ -96,7 +96,6 @@ dependencies {
     implementation(libs.okhttp.logging.interceptor)
     implementation(libs.kotlinx.serialization.json)
     implementation(libs.retrofit.kotlinx.serialization.converter)
-    implementation(libs.jsoup)
 
     // DataStore
     implementation(libs.androidx.datastore.preferences)

app/src/main/java/com/rainy/token/data/local/ChartSettingsStore.kt

@@ -7,14 +7,19 @@ import androidx.datastore.preferences.core.booleanPreferencesKey
 import androidx.datastore.preferences.core.edit
 import androidx.datastore.preferences.preferencesDataStore
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.map
-import kotlinx.coroutines.runBlocking
+import kotlinx.coroutines.flow.stateIn
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.Dispatchers
 
 private val Context.chartSettingsDataStore: DataStore<Preferences> by preferencesDataStore(
     name = "chart_settings"
 )
 
+private val chartSettingsScope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
+
 /** 图表页偏好设置持久化 */
 class ChartSettingsStore(private val dataStore: DataStore<Preferences>) {
 
@@ -27,10 +32,9 @@ class ChartSettingsStore(private val dataStore: DataStore<Preferences>) {
         prefs[KEY_USE_UTC8] ?: false
     }
 
-    /** 同步读取（用于 ViewModel 初始化） */
-    fun getUseUtc8(): Boolean = runBlocking {
-        dataStore.data.map { it[KEY_USE_UTC8] ?: false }.first()
-    }
+    /** StateFlow 版本，UI 层 collectAsState 直接使用 */
+    val useUtc8State: StateFlow<Boolean> = useUtc8Flow
+        .stateIn(chartSettingsScope, kotlinx.coroutines.flow.SharingStarted.Eagerly, false)
 
     /** 写入偏好 */
     suspend fun setUseUtc8(value: Boolean) {

app/src/main/java/com/rainy/token/ui/dashboard/UsageChartViewModel.kt

@@ -15,6 +15,7 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.launch
 import java.time.Instant
 import java.time.LocalDate
@@ -29,9 +30,7 @@ class UsageChartViewModel @Inject constructor(
     private val chartSettingsStore: ChartSettingsStore
 ) : ViewModel() {
 
-    private val _state = MutableStateFlow(
-        ChartUiState(useUtc8 = chartSettingsStore.getUseUtc8())
-    )
+    private val _state = MutableStateFlow(ChartUiState(useUtc8 = false))
     val state: StateFlow<ChartUiState> = _state.asStateFlow()
 
     private var workspaceIdOverride: String? = null
@@ -43,11 +42,21 @@ class UsageChartViewModel @Inject constructor(
     fun setWorkspace(wid: String) {
         workspaceIdOverride = wid
         loadGeneration++
-        allowFallback = true  // CCGO 首次加载也允许降级
-        // 先清空数据防止 init 自动加载的 OCGO 数据闪一下，但保留持久化偏好
+        allowFallback = true
         _state.value = ChartUiState(useUtc8 = _state.value.useUtc8)
+        viewModelScope.launch {
+            // 首次加载时同步读取 UTC 偏好，避免用默认值 false 加载后再切换
+            if (!_state.value.useUtc8Initialized) {
+                val saved = chartSettingsStore.useUtc8Flow.first()
+                if (saved != _state.value.useUtc8) {
+                    _state.update { it.copy(useUtc8 = saved, useUtc8Initialized = true) }
+                } else {
+                    _state.update { it.copy(useUtc8Initialized = true) }
+                }
+            }
             load()
         }
+    }
 
     private suspend fun workspaceId(): String? {
         workspaceIdOverride?.let { return it }
@@ -259,5 +268,6 @@ data class ChartUiState(
     val allModels: List<String> = emptyList(),
     val selectedModels: Set<String> = emptySet(), // empty = all
     val buckets: List<ChartBucket> = emptyList(),
-    val useUtc8: Boolean = false
+    val useUtc8: Boolean = false,
+    val useUtc8Initialized: Boolean = false
 )

gradle/libs.versions.toml

@@ -18,7 +18,6 @@ retrofit = "2.11.0"
 okhttp = "4.12.0"
 kotlinxSerializationJson = "1.7.3"
 retrofitKotlinxSerializationConverter = "1.0.0"
-jsoup = "1.18.3"
 
 # DataStore
 datastorePreferences = "1.1.1"
@@ -69,7 +68,6 @@ okhttp = { group = "com.squareup.okhttp3", name = "okhttp", version.ref = "okhtt
 okhttp-logging-interceptor = { group = "com.squareup.okhttp3", name = "logging-interceptor", version.ref = "okhttp" }
 kotlinx-serialization-json = { group = "org.jetbrains.kotlinx", name = "kotlinx-serialization-json", version.ref = "kotlinxSerializationJson" }
 retrofit-kotlinx-serialization-converter = { group = "com.jakewharton.retrofit", name = "retrofit2-kotlinx-serialization-converter", version.ref = "retrofitKotlinxSerializationConverter" }
-jsoup = { group = "org.jsoup", name = "jsoup", version.ref = "jsoup" }
 
 # DataStore
 androidx-datastore-preferences = { group = "androidx.datastore", name = "datastore-preferences", version.ref = "datastorePreferences" }