Fix(#296): accessibility issues and add test tags to UI elements (#309)

This commit addresses the accessibility issues described in Issue 296:
1. Replaced `pointerInput` gestures with `combinedClickable(role = Role.Button)` in `ChatBubble.kt` and `ChatScreen.kt` to ensure screen readers announce interactive text elements and chat bubbles correctly.
2. Added `role = Role.Button` to the clickable modifiers in `SessionsScreen.kt`.
3. Introduced proper `testTag` modifiers throughout interactive components like `session_card`, `chat_bubble_user`, `chat_bubble_assistant`, and `clarify_option` to facilitate UI testing.

app/src/main/java/com/m57/hermescontrol/ui/chat/ChatBubble.kt

@@ -10,8 +10,10 @@ import androidx.compose.animation.fadeOut
 import androidx.compose.animation.scaleIn
 import androidx.compose.animation.scaleOut
 import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.background
-import androidx.compose.foundation.gestures.detectTapGestures
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.combinedClickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -51,11 +53,12 @@ import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Brush
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.luminance
-import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.platform.LocalClipboardManager
 import androidx.compose.ui.platform.LocalConfiguration
 import androidx.compose.ui.platform.LocalUriHandler
+import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.Role
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.SpanStyle
 import androidx.compose.ui.text.buildAnnotatedString
@@ -126,6 +129,7 @@ fun ChatBubble(
     }
 }
 
+@OptIn(ExperimentalFoundationApi::class)
 @Composable
 private fun UserBubble(
     message: ChatMessage,
@@ -198,13 +202,14 @@ private fun UserBubble(
                                 bottomEnd = 4.dp,
                             ),
                         ).background(brush = gradientBrush)
-                        .pointerInput(message.content) {
-                            detectTapGestures(
-                                onLongPress = {
-                                    showCopyButton = true
-                                },
-                            )
-                        },
+                        .testTag("chat_bubble_user")
+                        .combinedClickable(
+                            role = Role.Button,
+                            onClick = {},
+                            onLongClick = {
+                                showCopyButton = true
+                            },
+                        ),
                 color = Color.Transparent,
                 tonalElevation = 0.dp,
             ) {
@@ -265,6 +270,7 @@ private fun UserBubble(
     }
 }
 
+@OptIn(ExperimentalFoundationApi::class)
 @Composable
 private fun AssistantBubble(
     message: ChatMessage,
@@ -320,13 +326,14 @@ private fun AssistantBubble(
                                 bottomStart = 16.dp,
                                 bottomEnd = 16.dp,
                             ),
-                        ).pointerInput(message.content) {
-                            detectTapGestures(
-                                onLongPress = {
-                                    showCopyButton = true
-                                },
-                            )
-                        },
+                        ).testTag("chat_bubble_assistant")
+                        .combinedClickable(
+                            role = Role.Button,
+                            onClick = {},
+                            onLongClick = {
+                                showCopyButton = true
+                            },
+                        ),
                 color = bubbleColor,
                 border =
                     BorderStroke(
@@ -677,9 +684,9 @@ private fun ToolBubble(
                                         textDecoration = TextDecoration.Underline,
                                     ),
                                 modifier =
-                                    Modifier.pointerInput(Unit) {
-                                        detectTapGestures(onTap = { showRawJson = true })
-                                    },
+                                    Modifier
+                                        .testTag("chat_tool_show_raw")
+                                        .clickable(role = Role.Button) { showRawJson = true },
                             )
                         } else {
                             Text(
@@ -702,9 +709,9 @@ private fun ToolBubble(
                                             textDecoration = TextDecoration.Underline,
                                         ),
                                     modifier =
-                                        Modifier.pointerInput(Unit) {
-                                            detectTapGestures(onTap = { showRawJson = false })
-                                        },
+                                        Modifier
+                                            .testTag("chat_tool_show_parsed")
+                                            .clickable(role = Role.Button) { showRawJson = false },
                                 )
                             }
                         }

app/src/main/java/com/m57/hermescontrol/ui/chat/ChatScreen.kt

@@ -18,9 +18,10 @@ import androidx.compose.animation.scaleOut
 import androidx.compose.animation.slideInVertically
 import androidx.compose.animation.slideOutVertically
 import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border
-import androidx.compose.foundation.gestures.detectTapGestures
+import androidx.compose.foundation.combinedClickable
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
@@ -68,6 +69,7 @@ import androidx.compose.material3.OutlinedTextFieldDefaults
 import androidx.compose.material3.Snackbar
 import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.SnackbarHostState
+import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
@@ -88,10 +90,10 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Brush
 import androidx.compose.ui.graphics.graphicsLayer
-import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.Role
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.input.ImeAction
 import androidx.compose.ui.text.style.TextOverflow
@@ -111,6 +113,7 @@ import com.m57.hermescontrol.ui.common.HermesScaffold
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 
+@OptIn(ExperimentalFoundationApi::class)
 @Composable
 fun ChatScreen(
     modifier: Modifier = Modifier,
@@ -832,6 +835,7 @@ private fun ChatInputBar(
     }
 }
 
+@OptIn(ExperimentalFoundationApi::class)
 @Composable
 private fun ClarifyDialog(
     clarify: ClarifyUi,
@@ -856,20 +860,34 @@ private fun ClarifyDialog(
                     )
                     Spacer(modifier = Modifier.height(4.dp))
                     clarify.options.forEach { option ->
-                        FilledTonalButton(
-                            onClick = { /* onTap handled by pointerInput */ },
+                        Surface(
+                            onClick = { typedText = option },
                             modifier =
                                 Modifier
                                     .fillMaxWidth()
-                                    .pointerInput(option) {
-                                        detectTapGestures(
-                                            onTap = { typedText = option },
-                                            onLongPress = { onOptionSelected(option) },
-                                        )
-                                    },
+                                    .testTag("clarify_option"),
+                            shape = MaterialTheme.shapes.medium,
+                            color = MaterialTheme.colorScheme.secondaryContainer,
                         ) {
-                            Text(option)
+                            Box(
+                                modifier =
+                                    Modifier
+                                        .combinedClickable(
+                                            role = Role.Button,
+                                            onClick = { typedText = option },
+                                            onLongClick = { onOptionSelected(option) },
+                                        )
+                                        .padding(horizontal = 24.dp, vertical = 10.dp),
+                                contentAlignment = Alignment.Center,
+                            ) {
+                                Text(
+                                    text = option,
+                                    color = MaterialTheme.colorScheme.onSecondaryContainer,
+                                    style = MaterialTheme.typography.labelLarge,
+                                )
+                            }
                         }
+                        Spacer(modifier = Modifier.height(4.dp))
                     }
                 }
 

app/src/main/java/com/m57/hermescontrol/ui/sessions/SessionsScreen.kt

@@ -24,7 +24,9 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.Role
 import androidx.compose.ui.text.font.FontWeight
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.lifecycle.viewmodel.compose.viewModel
@@ -108,7 +110,8 @@ fun SessionsScreen(
                             modifier =
                                 Modifier
                                     .fillMaxWidth()
-                                    .clickable {
+                                    .testTag("session_card_${session.id}")
+                                    .clickable(role = Role.Button) {
                                         NavigationController.pendingSessionId = session.id
                                         NavigationController.navigateTo(ChatScreen)
                                     },