Problem

The status bar only shows a single indicator for running subagents (🔄 N). There's no indication of background processes (long-running servers, watchers, etc.) and no at-a-glance view of what's running alongside the conversation.

The Ctrl+X panel only shows delegate_task subagents — background processes are invisible from the TUI.

Proposed Solution

Status bar

• Replace the single badge with A:N (running subagents) + P:N (background processes) format
• Examples: A:1, P:2, A:1,P:1
• Hidden when nothing is running

Ctrl+X unified panel

• Show both subagents and background processes in one overlay
• Section divider between agents and processes
• Process rows: command, uptime, exit status

Related PR

• feat: workload status bar + unified Ctrl+X panel (agents + processes) #5622