CAMEL-23615: camel-jbang - TUI add Metrics tab with dashboard, table, and raw view

[davsclaus]

Summary

• Add Metrics tab (key 9) with three view modes:
  • Dashboard (default): Two side-by-side panels — Camel (exchanges, route timers, event notifiers) and JVM (memory with bar chart, CPU, threads, GC)
  • Table (d key): Sortable/filterable table of all micrometer meters with scrollbar, page up/down, and row selection
  • Raw (r key): Live HTTP dump of the /metrics Prometheus endpoint with syntax coloring, scrollbar, and F5 refresh (preserves scroll position)
• Add "More" dropdown (key 0) containing Circuit Breaker and Consumers tabs, positioned below the tab label
• Parse micrometer meter data from status JSON (counters, gauges, timers, longTaskTimers, distribution)
• Show metrics HTTP endpoint URL in dashboard header when available

Test plan

• camel run myRoute.yaml --observe then camel monitor
• Press 9 → dashboard with Camel and JVM panels
• Press d → table view, use s/f to sort/filter, up/down/pgup/pgdn to scroll
• Press r → raw Prometheus dump with syntax coloring, F5 to refresh, Esc to close
• Press 0 → "More" dropdown, select Circuit Breaker or Consumers
• Without --observe: shows "No metrics available" message

Claude Code on behalf of Claus Ibsen

[github-actions]

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[github-actions]

🧪 CI tested the following changed modules:

• dsl/camel-jbang/camel-jbang-plugin-tui

All tested modules (2 modules)

• Camel :: JBang :: Plugin :: TUI
• Camel :: Launcher :: Container

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