fix: properly return no duplicates found when no duplicate files are detected

model.go

@@ -22,17 +22,18 @@
 	toDelete     []string
 }
 
-var (
-	titleStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("227")).Bold(true)
+type scanCompleteMsg struct{}
 
+var (
+	fileStyle         = lipgloss.NewStyle().Foreground(lipgloss.Color("255"))
 	selectedFileStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("42")).Bold(true)
+	titleStyle        = lipgloss.NewStyle().Foreground(lipgloss.Color("227")).Bold(true)
 	deleteStyle       = lipgloss.NewStyle().Foreground(lipgloss.Color("196")).Bold(true)
 	confirmStyle      = lipgloss.NewStyle().Border(lipgloss.RoundedBorder()).BorderForeground(lipgloss.Color("196")).Padding(1)
 	itemStyle         = lipgloss.NewStyle().PaddingLeft(2)
 	selectedStyle     = lipgloss.NewStyle().Foreground(lipgloss.Color("42")).Bold(true)
 	errorStyle        = lipgloss.NewStyle().Foreground(lipgloss.Color("196")).Bold(true)
-
-	helpStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("240")).Italic(true)
+	helpStyle         = lipgloss.NewStyle().Foreground(lipgloss.Color("240")).Italic(true)
 )
 
 func initialModel(resultsChan <-chan []string) model {
@@ -114,6 +115,10 @@
 
 		}
 
+	case scanCompleteMsg:
+		m.scanning = false
+		return m, nil
+
 	case []string:
 		m.scanning = false
 		m.groups = append(m.groups, msg)
@@ -166,47 +171,53 @@
 
 	if m.scanning {
 		b.WriteString("🔍 Scanning for duplicates...\n")
-		b.WriteString(helpStyle.Render("(Press q to quit)\n"))
-		return b.String()
-	}
-
-	if len(m.groups) == 0 {
+	} else if len(m.groups) == 0 {
 		b.WriteString("🎉 No duplicates found!\n")
-		return b.String()
-	}
+	} else {
+		current := m.groups[m.currentGroup]
+		b.WriteString(fmt.Sprintf(" Group %d/%d (%d files)\n",
+			m.currentGroup+1, len(m.groups), len(current)))
+
+		for i, file := range current {
+			var line strings.Builder
+			if _, selected := m.selected[m.currentGroup][i]; selected {
+				line.WriteString(selectedFileStyle.Render("◉ "))
+			} else {
+				line.WriteString("◌ ")
+			}
 
-	current := m.groups[m.currentGroup]
-	b.WriteString(fmt.Sprintf(" Group %d/%d (%d files)\n",
-		m.currentGroup+1, len(m.groups), len(current)))
+			if i == m.currentFile {
+				line.WriteString("➔ ")
+			} else {
+				line.WriteString("  ")
+			}
 
-	for i, file := range current {
-		var line strings.Builder
+			line.WriteString(fileStyle.Render(file))
 
-		if _, selected := m.selected[m.currentGroup][i]; selected {
-			line.WriteString(selectedFileStyle.Render("◉ "))
-		} else {
-			line.WriteString("◌ ")
-		}
+			if _, selected := m.selected[m.currentGroup][i]; selected {
+				line.WriteString(deleteStyle.Render(" (marked for deletion)"))
+			}
 
-		if i == m.currentFile {
-			line.WriteString("➔ ")
-		} else {
-			line.WriteString("  ")
+			b.WriteString(line.String() + "\n")
 		}
+	}
 
-		line.WriteString(selectedFileStyle.Render(file))
-
-		if _, selected := m.selected[m.currentGroup][i]; selected {
-			line.WriteString(deleteStyle.Render(" (marked for deletion)"))
+	helpText := ""
+	if !m.showConfirm {
+		if m.scanning {
+			helpText = helpStyle.Render("(Press q to quit)")
+		} else if len(m.groups) > 0 {
+			helpText = helpStyle.Render(
+				"↑/↓: Navigate files • ←/→: Switch groups • Space: Select • d: Delete selected • q: Quit",
+			)
+		} else {
+			helpText = helpStyle.Render("(Press q to quit)")
 		}
-
-		b.WriteString(line.String() + "\n")
 	}
 
-	help := helpStyle.Render(
-		"↑/↓: Navigate files • ←/→: Switch groups • Space: Select • d: Delete selected • q: Quit",
-	)
-	b.WriteString("\n" + help)
+	if helpText != "" {
+		b.WriteString("\n\n" + helpText)
+	}
 
 	return b.String()
 }
@@ -251,18 +262,19 @@
 
 func waitForResults(results <-chan []string) tea.Cmd {
 	return func() tea.Msg {
-		if group, ok := <-results; ok {
-			return group
+		group, ok := <-results
+		if !ok {
+			return scanCompleteMsg{}
 		}
-		return nil
+		return group
 	}
 }
 
 type updateMsg struct {
 	deleted []string
 }
 
 func renderItems(items []string, current int, selected map[int]struct{}) string {
 	var b strings.Builder
 	for _, item := range items {
 		prefix := "  "