feat(recovery,context): tier-2 intent-holder arbiter + remaining-delta pinning + surfaced signal events

- recovery: two-tier repair ladder — owner then arbiter (recovery stage recast
  as intent-holder, holds initial intent, reconciles cross-file contract disputes)
  with independent INTENT_ROUTE_BUDGET; RecoveryRoutingTest coverage
- context: remaining-delta checklist pinning (RemainingDelta{Pinning,Entry}Test)
- surface write-only events (session name, quality signals) into stats/browse
- parseToolArguments lenient-Json fallback for bare-key drift
- tools: ChildProcess seam

apps/tui-go/internal/app/sessions_overlay.go

@@ -16,6 +16,7 @@ import (
 type SessionSummary struct {
 	SessionID      string `json:"sessionId"`
 	Status         string `json:"status"`
+	Name           string `json:"name"`
 	Intent         string `json:"intent"`
 	WorkflowID     string `json:"workflowId"`
 	StageCount     int    `json:"stageCount"`
@@ -222,7 +223,12 @@ func (m Model) sessionListRow(i int) string {
 	statusCell := lipgloss.NewStyle().Foreground(statusColor(t, s.Status)).Background(t.P.BgPanel).Bold(true).
 		Render(padRaw(statusLabel(s.Status), 9))
 
-	stage := s.WorkflowID
+	// Prefer the human session name (SessionNamedEvent, intent-derived) over the raw
+	// workflow id — it's what the operator recognizes a session by.
+	stage := s.Name
+	if stage == "" {
+		stage = s.WorkflowID
+	}
 	if s.StageCount > 0 {
 		stage += " ·" + itoa(s.StageCount) + "stg"
 	}