One-line tool cards in truncated mode

When tool verbosity is 'truncated' (the default) and the card is
collapsed, fold the preview into the title row so a tool call takes a
single line of vertical space: 'Terminal | ls -lah' with the preview
in monospace. Tapping still expands to the full args + output.

app/shared/src/commonMain/kotlin/iris/ui/screens/ChatScreen.kt

@@ -2868,6 +2868,9 @@ private fun ToolCard(
             else -> IrisColors.statusRed
         }
     val preview = tool.preview ?: tool.note
+    // Truncated + collapsed: fold the preview into the title row so the card
+    // takes a single line of vertical space ("Terminal | ls -lah").
+    val inlinePreview = detail == ToolDetail.TRUNCATED && !expanded && preview != null
     Column(
         modifier =
             Modifier
@@ -2892,11 +2895,31 @@ private fun ToolCard(
                 fontSize = 13.sp,
                 fontWeight = FontWeight.Medium,
                 color = IrisColors.textBright,
-                modifier =
+                modifier = Modifier.clickable { expanded = !expanded },
-                    Modifier
-                        .weight(1f)
-                        .clickable { expanded = !expanded },
             )
+            if (inlinePreview) {
+                Spacer(modifier = Modifier.width(6.dp))
+                Text(
+                    "|",
+                    fontSize = 12.sp,
+                    color = IrisColors.textDim,
+                )
+                Spacer(modifier = Modifier.width(6.dp))
+                Text(
+                    preview,
+                    fontFamily = FontFamily.Monospace,
+                    fontSize = 12.sp,
+                    color = IrisColors.textMuted,
+                    maxLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier =
+                        Modifier
+                            .weight(1f)
+                            .clickable { expanded = !expanded },
+                )
+            } else {
+                Spacer(modifier = Modifier.weight(1f))
+            }
             if (tool.duration != null) {
                 Text(
                     "${String.format("%.1f", tool.duration)}s",
@@ -2905,8 +2928,9 @@ private fun ToolCard(
                 )
             }
         }
-        // One-liner preview (Truncated default / Everything).
+        // One-liner preview (Truncated default / Everything); hidden when it
-        if (preview != null && detail != ToolDetail.NOTHING) {
+        // is already inlined into the title row above.
+        if (preview != null && detail != ToolDetail.NOTHING && !inlinePreview) {
             Text(
                 preview,
                 fontSize = 12.sp,