feat(sidebar): show code-review verdict dot on briefing thread rows

Render a small status dot on each briefing thread row reflecting the
latest code-review verdict for the session: green (statusSuccess) when
passed, red (statusError) when issues were found, none when not reviewed.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

Author: sirily11

RxCode/Views/Sidebar/BriefingThreadRow.swift

@@ -8,6 +8,9 @@ struct BriefingThreadRow: View {
     let item: ThreadSummaryItem
     let isInProgress: Bool
     let todoProgress: ChatTodoProgress?
+    /// Latest code-review verdict for the thread: `true` passed, `false`
+    /// failed, `nil` not reviewed (no dot shown).
+    var reviewPassed: Bool? = nil
     let onSelect: () -> Void
 
     var body: some View {
@@ -25,6 +28,14 @@ struct BriefingThreadRow: View {
                     .truncationMode(.tail)
                     .frame(maxWidth: .infinity, alignment: .leading)
 
+                if let reviewPassed {
+                    Circle()
+                        .fill(reviewPassed ? ClaudeTheme.statusSuccess : ClaudeTheme.statusError)
+                        .frame(width: 6, height: 6)
+                        .help(reviewPassed ? "Code review passed" : "Code review found issues")
+                        .accessibilityLabel(reviewPassed ? "Code review passed" : "Code review found issues")
+                }
+
                 if isInProgress {
                     BriefingThreadProgressBadge(progress: todoProgress)
                 } else {

RxCode/Views/Sidebar/BriefingView.swift

@@ -839,7 +839,8 @@ struct BriefingView: View {
         BriefingThreadRow(
             item: item,
             isInProgress: appState.sessionStates[item.sessionId]?.isStreaming == true,
-            todoProgress: appState.todoProgress(forSessionId: item.sessionId)
+            todoProgress: appState.todoProgress(forSessionId: item.sessionId),
+            reviewPassed: appState.reviewPassedBySession[item.sessionId]
         ) {
             appState.selectSession(id: item.sessionId, in: windowState)
         }