CAMEL-23519: Add notification badges to TUI tab labels

[davsclaus]

Summary

• Add (n) notification badges to tab labels in yellow bold
• Overview shows active integration count, other tabs show relevant data counts
• Trace tab shows (*) when trace data exists
• Badges are 0 (hidden) when no integration is selected
• Counts update in real-time on each render tick
• Separate Escape from Quit: Escape navigates back/unselects, q/Ctrl+c quits

Test plan

• Module builds successfully
• Code formatting passes
• Run camel tui monitor and verify badges appear on tabs
• Verify badges update as data changes
• Verify Escape unselects integration on overview, q quits

🤖 Generated with Claude Code

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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