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/navigation.json

@@ -41,5 +41,42 @@
     "sessions": "Sessions",
     "detail": "Details",
     "settings": "Settings"
+  },
+  "cliMonitor": {
+    "title": "CLI Stream Monitor",
+    "live": "Live",
+    "executions": "executions",
+    "active": "active",
+    "errors": "errors",
+    "lines": "lines",
+    "refresh": "Refresh",
+    "refreshing": "Refreshing...",
+    "searchPlaceholder": "Search logs...",
+    "clear": "Clear",
+    "filterAll": "All",
+    "filterErrors": "Errors",
+    "filterContent": "Content",
+    "filterSystem": "System",
+    "viewPreview": "Preview",
+    "viewJson": "JSON",
+    "viewRaw": "Raw",
+    "settings": "Settings",
+    "noExecutions": "No active CLI executions",
+    "noExecutionsHint": "Start a CLI command to see streaming output",
+    "noMessages": "Waiting for messages...",
+    "noMatch": "No matching messages found",
+    "statusBar": "{total} executions | {active} active | {errors} error | {lines} lines",
+    "copy": "Copy",
+    "copied": "Copied!",
+    "rawJson": "Raw JSON",
+    "expand": "Expand",
+    "collapse": "Collapse",
+    "retry": "Retry",
+    "dismiss": "Dismiss",
+    "thinking": "Thinking...",
+    "completed": "Completed",
+    "tokens": "Tokens",
+    "duration": "Duration",
+    "model": "Model"
   }
 }