fix(tui): guard against late Progress/Log after DoneMsg; drop dead quitting field

internal/tui/dashboard/model_test.go

@@ -45,6 +45,28 @@ func TestDoneMsgFlipsIcons(t *testing.T) {
 	}
 }
 
+func TestProgressAfterDoneDoesNotRevertIcon(t *testing.T) {
+	m := NewModel([]string{"a"}, nil)
+	m.Update(DoneMsg{Summary: engine.Summary{Results: []engine.ModuleResult{
+		{ID: "a", Status: engine.StatusSucceeded},
+	}}})
+	if got := m.rowIndex["a"].StatusIcon; got != "✓" {
+		t.Fatalf("after Done icon = %q, want ✓", got)
+	}
+	// Late Progress event — tea.Program.Send has no ordering guarantee across goroutines.
+	m.Update(tui.ProgressMsg{ModuleID: "a", Current: 9, Total: 10, Message: "late"})
+	if got := m.rowIndex["a"].StatusIcon; got != "✓" {
+		t.Fatalf("late Progress reverted icon to %q", got)
+	}
+	// Late Log event must also be dropped — it would otherwise pollute the
+	// log tail of a completed row.
+	before := len(m.rowIndex["a"].LogTail)
+	m.Update(tui.LogMsg{ModuleID: "a", Line: "late log"})
+	if after := len(m.rowIndex["a"].LogTail); after != before {
+		t.Fatalf("late Log appended to tail: before=%d after=%d", before, after)
+	}
+}
+
 func TestViewMentionsModules(t *testing.T) {
 	m := NewModel([]string{"alpha", "bravo"}, nil)
 	out := m.View()