fix: attachment menu — vertical glass panel with round colored icons

Replaced the horizontal circle buttons with a vertical GlassSurface
panel. Each row has a 40dp round tinted icon + label, matching the
app's glass design system. Slides up above the input with animation.

app/src/main/java/dev/kaizen/app/chat/ChatComponents.kt

@@ -479,56 +479,40 @@ fun AttachmentMenu(
     val accent = LocalKaizenAccent.current
     val isDark = isSystemInDarkTheme()
 
-    Row(
-        modifier = modifier.fillMaxWidth().padding(horizontal = 32.dp, vertical = 8.dp),
-        horizontalArrangement = Arrangement.SpaceEvenly,
+    GlassSurface(
+        modifier = modifier.padding(horizontal = 12.dp),
+        shape = KaizenShapes.lg,
+        tintAlpha = GlassTiers.card(isDark),
+        shadowStack = KaizenShadows.level2,
+        cornerRadius = 24.dp,
     ) {
-        AttachOption(
-            icon = Icons.Rounded.CameraAlt,
-            label = stringResource(R.string.attach_camera),
-            tint = accent.primary,
-            bg = accent.primary.copy(alpha = if (isDark) 0.15f else 0.10f),
-            onClick = onCamera,
-        )
-        AttachOption(
-            icon = Icons.Rounded.Image,
-            label = stringResource(R.string.attach_gallery),
-            tint = Color(0xFF6366F1),
-            bg = Color(0xFF6366F1).copy(alpha = if (isDark) 0.15f else 0.10f),
-            onClick = onGallery,
-        )
-        AttachOption(
-            icon = Icons.AutoMirrored.Rounded.InsertDriveFile,
-            label = stringResource(R.string.attach_file),
-            tint = Color(0xFF10B981),
-            bg = Color(0xFF10B981).copy(alpha = if (isDark) 0.15f else 0.10f),
-            onClick = onFile,
-        )
+        Column(Modifier.fillMaxWidth().padding(8.dp)) {
+            AttachRow(Icons.Rounded.CameraAlt, stringResource(R.string.attach_camera), accent.primary, isDark, onCamera)
+            AttachRow(Icons.Rounded.Image, stringResource(R.string.attach_gallery), Color(0xFF6366F1), isDark, onGallery)
+            AttachRow(Icons.AutoMirrored.Rounded.InsertDriveFile, stringResource(R.string.attach_file), Color(0xFF10B981), isDark, onFile)
+        }
     }
 }
 
 @Composable
-private fun AttachOption(
-    icon: ImageVector,
-    label: String,
-    tint: Color,
-    bg: Color,
-    onClick: () -> Unit,
-) {
+private fun AttachRow(icon: ImageVector, label: String, tint: Color, isDark: Boolean, onClick: () -> Unit) {
     val cs = MaterialTheme.colorScheme
-    Column(horizontalAlignment = Alignment.CenterHorizontally) {
+    Row(
+        Modifier
+            .fillMaxWidth()
+            .clip(KaizenShapes.md)
+            .clickable(onClick = onClick)
+            .padding(horizontal = 12.dp, vertical = 12.dp),
+        verticalAlignment = Alignment.CenterVertically,
+    ) {
         Box(
-            Modifier
-                .size(56.dp)
-                .clip(KaizenShapes.circle)
-                .background(bg)
-                .clickable(onClick = onClick),
+            Modifier.size(40.dp).clip(KaizenShapes.circle).background(tint.copy(alpha = if (isDark) 0.15f else 0.10f)),
             contentAlignment = Alignment.Center,
         ) {
-            Icon(icon, null, tint = tint, modifier = Modifier.size(24.dp))
+            Icon(icon, null, tint = tint, modifier = Modifier.size(20.dp))
         }
-        Spacer(Modifier.height(6.dp))
-        Text(label, color = cs.onSurfaceVariant, fontSize = 12.sp, fontWeight = FontWeight.Medium)
+        Spacer(Modifier.width(14.dp))
+        Text(label, color = cs.onBackground, fontSize = 15.sp, fontWeight = FontWeight.Medium)
     }
 }