style(ui): 列表项改用 Miuix BasicComponent（MD3 圆角卡片）

抽屉的会话行/入口行、设置页的主题选项统一换成 BasicComponent，间距 8dp，选中态用 ✓ 标记。

app/src/main/kotlin/top/yeij/cyrene/ui/sessions/SessionDrawerContent.kt

@@ -23,11 +23,12 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.window.Dialog
+import top.yukonga.miuix.kmp.basic.BasicComponent
 import top.yukonga.miuix.kmp.basic.Text
 import top.yukonga.miuix.kmp.basic.TextButton
 import top.yukonga.miuix.kmp.theme.MiuixTheme
 
-/** 侧边栏内容：会话列表 + IoT/设置占位 + 登出。 */
+/** 侧边栏内容：会话列表 + IoT/设置占位 + 登出。列表项统一用 Miuix 的 MD3 圆角卡片。 */
 @Composable
 fun ColumnScope.SessionDrawerContent(
     state: SessionsUiState,
@@ -52,14 +53,17 @@ fun ColumnScope.SessionDrawerContent(
     Row(
         modifier = Modifier
             .fillMaxWidth()
-            .padding(horizontal = 20.dp, vertical = 4.dp),
+            .padding(start = 20.dp, end = 12.dp, bottom = 4.dp),
         verticalAlignment = Alignment.CenterVertically,
     ) {
         Text("会话", style = MiuixTheme.textStyles.subtitle, modifier = Modifier.weight(1f))
         TextButton("新建", onClick = onCreate)
     }
 
-    LazyColumn(modifier = Modifier.weight(1f)) {
+    LazyColumn(
+        modifier = Modifier.weight(1f),
+        verticalArrangement = Arrangement.spacedBy(8.dp),
+    ) {
         items(items = state.sessions, key = { it.id }) { session ->
             SessionRow(
                 session = session,
@@ -86,9 +90,11 @@ fun ColumnScope.SessionDrawerContent(
         )
     }
 
-    Spacer(Modifier.height(8.dp))
+    Spacer(Modifier.height(12.dp))
     DrawerAction("IoT（规划中）", onOpenIot)
-    DrawerAction("App 设置（规划中）", onOpenSettings)
+    Spacer(Modifier.height(8.dp))
+    DrawerAction("App 设置", onOpenSettings)
+    Spacer(Modifier.height(8.dp))
     DrawerAction("登出", onLogout)
     Spacer(Modifier.height(16.dp))
 
@@ -113,42 +119,35 @@ private fun SessionRow(
     onClick: () -> Unit,
     onDelete: () -> Unit,
 ) {
-    Row(
-        modifier = Modifier
-            .fillMaxWidth()
-            .clickable(onClick = onClick)
-            .padding(horizontal = 20.dp, vertical = 12.dp),
-        verticalAlignment = Alignment.CenterVertically,
-    ) {
-        Text(
-            text = session.title,
-            style = MiuixTheme.textStyles.main,
-            color = if (active) MiuixTheme.colorScheme.primary else MiuixTheme.colorScheme.onBackground,
-            modifier = Modifier.weight(1f),
-        )
-        if (!session.isMain) {
-            Text(
-                text = "删除",
-                style = MiuixTheme.textStyles.footnote1,
-                color = MiuixTheme.colorScheme.error,
-                modifier = Modifier
-                    .clickable(onClick = onDelete)
-                    .padding(horizontal = 8.dp, vertical = 4.dp),
-            )
-        }
-    }
+    BasicComponent(
+        title = session.title,
+        onClick = onClick,
+        endActions = {
+            if (active) {
+                Text(
+                    text = "✓",
+                    style = MiuixTheme.textStyles.main,
+                    color = MiuixTheme.colorScheme.primary,
+                    modifier = Modifier.padding(horizontal = 6.dp),
+                )
+            }
+            if (!session.isMain) {
+                Text(
+                    text = "删除",
+                    style = MiuixTheme.textStyles.footnote1,
+                    color = MiuixTheme.colorScheme.error,
+                    modifier = Modifier
+                        .clickable(onClick = onDelete)
+                        .padding(horizontal = 8.dp, vertical = 4.dp),
+                )
+            }
+        },
+    )
 }
 
 @Composable
 private fun DrawerAction(label: String, onClick: () -> Unit) {
-    Text(
-        text = label,
-        style = MiuixTheme.textStyles.main,
-        modifier = Modifier
-            .fillMaxWidth()
-            .clickable(onClick = onClick)
-            .padding(horizontal = 20.dp, vertical = 14.dp),
-    )
+    BasicComponent(title = label, onClick = onClick)
 }
 
 @Composable

app/src/main/kotlin/top/yeij/cyrene/ui/settings/SettingsScreen.kt

@@ -1,6 +1,5 @@
 package top.yeij.cyrene.ui.settings
 
-import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
@@ -22,6 +21,7 @@ import top.yeij.cyrene.BuildConfig
 import top.yeij.cyrene.app.AppContainer
 import top.yeij.cyrene.core.prefs.AppPrefs
 import top.yeij.cyrene.core.prefs.ThemeMode
+import top.yukonga.miuix.kmp.basic.BasicComponent
 import top.yukonga.miuix.kmp.basic.Scaffold
 import top.yukonga.miuix.kmp.basic.SmallTopAppBar
 import top.yukonga.miuix.kmp.basic.Text
@@ -59,6 +59,7 @@ fun SettingsScreen(
                     selected = prefs.themeMode == mode,
                     onClick = { scope.launch { settings.setThemeMode(mode) } },
                 )
+                Spacer(Modifier.height(8.dp))
             }
 
             SectionTitle("聊天")
@@ -68,6 +69,7 @@ fun SettingsScreen(
                 checked = prefs.showNarration,
                 onCheckedChange = { scope.launch { settings.setShowNarration(it) } },
             )
+            Spacer(Modifier.height(8.dp))
             SwitchPreference(
                 title = "思维链默认展开",
                 summary = "流式期间展开思维链，结束后自动折叠",
@@ -110,22 +112,19 @@ private fun ThemeOption(
     selected: Boolean,
     onClick: () -> Unit,
 ) {
-    Row(
-        modifier = Modifier
-            .fillMaxWidth()
-            .clickable(onClick = onClick)
-            .padding(horizontal = 20.dp, vertical = 14.dp),
-        verticalAlignment = Alignment.CenterVertically,
-    ) {
-        Text(label, style = MiuixTheme.textStyles.main, modifier = Modifier.weight(1f))
-        if (selected) {
-            Text(
-                text = "✓",
-                style = MiuixTheme.textStyles.main,
-                color = MiuixTheme.colorScheme.primary,
-            )
-        }
-    }
+    BasicComponent(
+        title = label,
+        onClick = onClick,
+        endActions = {
+            if (selected) {
+                Text(
+                    text = "✓",
+                    style = MiuixTheme.textStyles.main,
+                    color = MiuixTheme.colorScheme.primary,
+                )
+            }
+        },
+    )
 }
 
 private fun ThemeMode.label(): String = when (this) {