fix(jetbrains): address session view review feedback

packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/session/views/base/AbstractSessionPartView.kt

@@ -23,7 +23,7 @@ abstract class AbstractSessionPartView(
 
     protected val arrow = JBLabel()
     protected val row = JPanel(BorderLayout(JBUI.scale(SessionUiStyle.View.CARD_LAYOUT_GAP), 0))
-    private val bound = mutableListOf<Component>()
+    private val bound = linkedSetOf<Component>()
 
     private val click = object : MouseAdapter() {
         override fun mouseClicked(e: MouseEvent) {

packages/kilo-jetbrains/frontend/src/main/kotlin/ai/kilocode/client/session/views/base/GenericView.kt

@@ -13,12 +13,15 @@ import com.intellij.ui.components.JBLabel
  * confusing empty gaps), this shows a dim label with the raw type name.
  * This makes it easy to spot new part types that need a proper renderer.
  */
-class GenericView(content: Generic) : SecondarySessionPartView(JBLabel("[${content.type}]"), JBLabel()) {
+class GenericView private constructor(
+    content: Generic,
+    private val label: JBLabel,
+) : SecondarySessionPartView(label, JBLabel()) {
+
+    constructor(content: Generic) : this(content, JBLabel("[${content.type}]"))
 
     override val contentId: String = content.id
 
-    private val label = row.getComponent(0) as JBLabel
-
     init {
         label.foreground = UiStyle.Colors.weak()
         applyStyle(SessionEditorStyle.current())