feat: show queued messages above input

Author: voocel

internal/ui/tui/events.go

@@ -24,6 +24,7 @@ func (m Model) HandleAgentEvent(ev agentcore.Event) (Model, tea.Cmd) {
 	case agentcore.EventAgentEnd:
 		m.Running = false
 		m.ShowSummary = true
+		m.QueuedMsgs = nil
 		clear(m.PendingTools)
 		clear(m.ToolOutputBuf)
 		if m.AskUser != nil {

internal/ui/tui/model.go

@@ -97,6 +97,8 @@ type Model struct {
 
 	Tasks *tools.TaskSnapshot // non-nil when tasks exist; displayed above input
 
+	QueuedMsgs []string // messages queued while agent is running (display only)
+
 	QuitPending bool // true after first Ctrl+C, waiting for second to quit
 }
 
@@ -281,6 +283,10 @@ func (m Model) View() string {
 	} else {
 		// Status bar (above input)
 		parts = append(parts, m.RenderStatusBar())
+		// Queued messages (sent while agent is running)
+		if len(m.QueuedMsgs) > 0 {
+			parts = append(parts, m.renderQueuedMsgs())
+		}
 		// Normal: image attachments + input
 		if len(m.Images) > 0 {
 			var tags []string
@@ -462,6 +468,7 @@ func (m Model) handleKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
 			// Steer only supports text; put images back for next submission.
 			m.Images = images
 			m.Driver.Steer(text)
+			m.QueuedMsgs = append(m.QueuedMsgs, text)
 		} else if err := m.promptWithImages(text, images); err != nil {
 			output += "\n" + ErrorStyle.Render("  error: "+err.Error())
 		}

internal/ui/tui/render.go

@@ -180,6 +180,17 @@ func (m *Model) renderRunSummary() string {
 		s.Turns, s.ToolCalls, FormatTokens(s.Input), FormatTokens(s.Output)))
 }
 
+// renderQueuedMsgs renders queued messages sent while agent is running.
+func (m *Model) renderQueuedMsgs() string {
+	var b strings.Builder
+	for _, msg := range m.QueuedMsgs {
+		text := truncateRunes(msg, 80)
+		b.WriteString(QueuedMsgStyle.Render("  ↳ " + text))
+		b.WriteByte('\n')
+	}
+	return strings.TrimRight(b.String(), "\n")
+}
+
 // renderTaskList renders the task progress bar and task list.
 func (m *Model) renderTaskList() string {
 	snap := m.Tasks

internal/ui/tui/styles.go

@@ -95,6 +95,8 @@ var PlanTagStyle = lipgloss.NewStyle().Foreground(ColorAccent)
 var (
 	MutedStyle = lipgloss.NewStyle().Foreground(ColorMuted)
 
+	QueuedMsgStyle = lipgloss.NewStyle().Foreground(ColorMuted).Italic(true)
+
 	TokenStyle = lipgloss.NewStyle().Foreground(ColorToken)
 
 	DiffAddStyle = lipgloss.NewStyle().Foreground(ColorSuccess)