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/locales/en/issues.json

@@ -89,6 +89,14 @@
     "title": "Discovery",
     "pageTitle": "Issue Discovery",
     "description": "View and manage issue discovery sessions",
+    "totalSessions": "Total Sessions",
+    "completedSessions": "Completed",
+    "runningSessions": "Running",
+    "totalFindings": "Findings",
+    "sessionList": "Session List",
+    "noSessions": "No sessions found",
+    "noSessionsDescription": "Start a new discovery session to begin",
+    "findingsDetail": "Findings Detail",
     "stats": {
       "totalSessions": "Total Sessions",
       "completed": "Completed",
@@ -135,5 +143,14 @@
       "export": "Export Findings",
       "refresh": "Refresh"
     }
+  },
+  "hub": {
+    "title": "Issue Hub",
+    "description": "Unified management for issues, queues, and discoveries",
+    "tabs": {
+      "issues": "Issues",
+      "queue": "Queue",
+      "discovery": "Discovery"
+    }
   }
 }