fix(ui): clear article title selection on any tap

The title SelectionContainer covered only the text, so a tap on the empty bar area or the article body never cleared the highlight. A tap anywhere on the article screen now recreates the container and drops the selection.

app/src/main/java/com/example/research/ui/article/ArticleScreen.kt

@@ -1,6 +1,7 @@
 package com.example.research.ui.article
 
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.text.selection.SelectionContainer
 import androidx.compose.foundation.lazy.LazyColumn
@@ -276,6 +277,7 @@ fun ArticleTitleBar(
     onNavigateBack: () -> Unit,
     modifier: Modifier = Modifier,
     compact: Boolean = false,
+    selectionReset: Int = 0,
 ) {
     val title = when (articleState) {
         is ArticleState.Loading -> articleState.title
@@ -321,6 +323,7 @@ fun ArticleTitleBar(
                 }
             }
 
+            key(selectionReset) {
                 SelectionContainer {
                     Text(
                         text = title,
@@ -337,6 +340,7 @@ fun ArticleTitleBar(
             }
         }
     }
+}
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -345,13 +349,21 @@ internal fun ArticleScreen(
     onNavigateBack: () -> Unit,
     onRefClick: ((String) -> Unit)? = null,
     onScrollPositionChanged: ((Int, Int) -> Unit)? = null,
+) {
+    val titleSelectionReset = remember { mutableIntStateOf(0) }
+    Box(
+        modifier = Modifier.clickable(
+            interactionSource = remember { MutableInteractionSource() },
+            indication = null
+        ) { titleSelectionReset.intValue++ }
     ) {
         Scaffold(
             topBar = {
                 ArticleTitleBar(
                     articleState = articleState,
                     showBackButton = true,
-                onNavigateBack = onNavigateBack
+                    onNavigateBack = onNavigateBack,
+                    selectionReset = titleSelectionReset.intValue
                 )
             },
             contentWindowInsets = AppWindowInsets.contentWithNavigation
@@ -365,3 +377,4 @@ internal fun ArticleScreen(
             )
         }
     }
+}

app/src/main/java/com/example/research/ui/main/AdaptiveMainScreen.kt

@@ -1,5 +1,7 @@
 package com.example.research.ui.main
 
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Modifier
@@ -90,9 +92,14 @@ fun AdaptiveMainScreen(
                 )
             },
             detailPane = {
+                val titleSelectionReset = remember { mutableIntStateOf(0) }
                 Column(
                     modifier = Modifier
                         .fillMaxSize()
+                        .clickable(
+                            interactionSource = remember { MutableInteractionSource() },
+                            indication = null
+                        ) { titleSelectionReset.intValue++ }
                         .padding(bottom = 16.dp)
                 ) {
                     ArticleTitleBar(
@@ -100,6 +107,7 @@ fun AdaptiveMainScreen(
                         showBackButton = isShowingDetail && articleState != null,
                         onNavigateBack = onNavigateBackFromArticle,
                         compact = true,
+                        selectionReset = titleSelectionReset.intValue,
                         modifier = Modifier.windowInsetsPadding(
                             WindowInsets.safeDrawing.only(WindowInsetsSides.Top)
                         )