feat(tui): full event history, approval-decision events, status bar

- Events were hard-capped to the last 7 per session in addEvent, so the
  e-inspector and EVENTS panel could never show more. Raise to 1000
  (effectively all, bounded); the EVENTS panel now shows the latest that
  fit (tail), and the inspector scrolls a window around the selection
  with a position indicator.
- The TUI had no approval.resolved handling at all — the decision frame
  was ignored and pending only cleared on session.resumed. Add the
  constant + case: clear the gate and record an ApprovalResolved event
  (APPROVED/REJECTED/AUTO_APPROVED + reason) into the stream.
- Status bar now shows the current stage and session status alongside the
  name. Relabel the cryptic "N bg" badge to "N elsewhere".

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

@@ -69,7 +69,10 @@ func (m Model) renderStatus() string {
 	if s := m.session(m.selectedID); s != nil && m.displayState() != StateIdle {
 		parts = append(parts, span(s.Name, t.P.FgStrong))
 		if s.CurrentStage != "" {
-			parts = append(parts, span(s.CurrentStage, t.P.Accent2))
+			parts = append(parts, span("⟐ "+s.CurrentStage, t.P.Accent2))
+		}
+		if s.Status != "" {
+			parts = append(parts, lipgloss.NewStyle().Foreground(statusColor(t, s.Status)).Background(bg).Render(statusLabel(s.Status)))
 		}
 	}
 
@@ -92,7 +95,7 @@ func (m Model) renderStatus() string {
 		right = append(right, lipgloss.NewStyle().Foreground(t.P.Accent).Background(bg).Render(m.spinner())+span(" active", t.P.Accent2))
 	}
 	if m.bgUpdates > 0 {
-		right = append(right, span(itoa(m.bgUpdates)+" bg", t.P.Warn))
+		right = append(right, span(itoa(m.bgUpdates)+" elsewhere", t.P.Warn))
 	}
 	if len(right) == 0 {
 		return m.fill(left, m.width, bg)
@@ -185,7 +188,7 @@ func (m Model) renderMain(h int) string {
 		leftBody = m.routerRows(leftW-4, h-2)
 		leftActive = true
 		rightTitle = "events"
-		rightBody = m.eventRows(rightW - 4)
+		rightBody = m.eventRows(rightW-4, h)
 	}
 
 	left := m.theme.box(leftTitle, leftBody, leftW, h, leftActive)
@@ -356,7 +359,7 @@ func (m Model) routerRows(w, h int) []string {
 	return rows
 }
 
-func (m Model) eventRows(w int) []string {
+func (m Model) eventRows(w, h int) []string {
 	t := m.theme
 	header := lipgloss.NewStyle().Foreground(t.P.Accent).Background(t.P.Bg).Bold(true).Render("event stream") +
 		t.span("   ", t.P.Bg)
@@ -366,21 +369,24 @@ func (m Model) eventRows(w int) []string {
 		header += t.span("○ idle", t.P.Faint)
 	}
 
-	rows := []string{header, ""}
 	s := m.session(m.selectedID)
 	if s == nil || len(s.Events) == 0 {
-		rows = append(rows, t.span("no events yet", t.P.Faint))
-		return rows
+		return []string{header, "", t.span("no events yet", t.P.Faint)}
 	}
+	evRows := make([]string, 0, len(s.Events))
 	for _, e := range s.Events {
 		cat := inferCategory(e.Type)
 		catCell := lipgloss.NewStyle().Foreground(t.categoryColor(cat)).Background(t.P.BgPanel).
 			Render(" " + padRaw(cat, 9) + " ")
-		rows = append(rows,
+		evRows = append(evRows,
 			t.span(e.Time+" ", t.P.Faint)+catCell+" "+
 				t.span(padRaw(e.Type, 18), t.P.Fg)+t.span(e.Detail, t.P.Dim))
 	}
-	return rows
+	// Show the latest events that fit under the 2-line header (box inner = h-2).
+	if avail := h - 4; avail >= 1 && len(evRows) > avail {
+		evRows = evRows[len(evRows)-avail:]
+	}
+	return append([]string{header, ""}, evRows...)
 }
 
 // --- width helpers ---