Function format_agent_rows 

pub fn format_agent_rows(
    agents: &[AgentStatusEntry],
    now: Instant,
) -> Vec<AgentRow>

Converts raw agent status entries into formatted display rows.

The phase introspection field is the supervisor’s lifecycle surface (supervisor-introspection capability): when present on the supervisor row, the status field renders that phase (with the matching status symbol) instead of the message-type-derived label — labels like "feedback" (the wire message type) are misleading, and the real lifecycle phase is "sweep", "audit", "merge", etc.

phase is honoured only for the supervisor row. A non-supervisor row ignores its phase and renders exactly as in v0.5.0 (status + summary) — coding agents do not emit introspection phases in v0.6.0. The single exception is the supervisor-published [STUCK_ON_PROMPT_PHASE] alert, which detect-stuck targets at the stalled coding agent’s row by design.

Pure function: performs no I/O, holds no locks, and is deterministic given the same inputs.