feat: add CliStreamMonitor and related components for CLI output streaming

- Implemented CliStreamMonitor component for real-time CLI output monitoring with multi-execution support.
- Created JsonFormatter component for displaying JSON content in various formats (text, card, inline).
- Added utility functions for JSON detection and formatting in jsonUtils.ts.
- Introduced LogBlock utility functions for styling CLI output lines.
- Developed a new Collapsible component for better UI interactions.
- Created IssueHubPage for managing issues, queue, and discovery with tab navigation.

ccw/frontend/src/components/issue/queue/QueueCard.tsx

@@ -46,7 +46,7 @@ export function QueueCard({
   const { formatMessage } = useIntl();
 
   // Get queue ID - IssueQueue interface doesn't have an id field, using tasks array as key
-  const queueId = queue.tasks.join(',') || queue.solutions.join(',');
+  const queueId = (queue.tasks || []).join(',') || (queue.solutions || []).join(',') || 'unknown';
 
   // Calculate item counts
   const taskCount = queue.tasks?.length || 0;