Show a muted "in sync" for submodules without issues

An empty status cell could be read as missing data. The muted word
confirms the check ran without drawing attention. The word is defined
once in the theme and shared with the detail pane.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/tui/detail/detail.go

@@ -74,7 +74,7 @@ func (m Model) lines(s *submodule.Submodule) []string {
 		out = append(out, t.LevelStyle(is.Level, lipgloss.NewStyle()).Width(labelWidth).Render(theme.IssueWord(is.Kind))+text.Render(is.Detail))
 	}
 	if len(issues) == 0 {
-		out = append(out, label("in sync")+muted.Render("nothing to do"))
+		out = append(out, label(theme.InSync)+muted.Render("nothing to do"))
 	}
 	if st.PinStaged {
 		out = append(out, theme.Fg(t.Info).Width(labelWidth).Render("staged")+text.Render("pin change staged, not committed"))

internal/tui/theme/issues.go

@@ -9,6 +9,9 @@ import (
 	"submarine/internal/submodule"
 )
 
+// InSync is the word for a submodule without issues.
+const InSync = "in sync"
+
 // IssueWord is the short label for an issue kind shown in the tree.
 func IssueWord(k submodule.IssueKind) string {
 	switch k {

internal/tui/tree/tree.go

@@ -398,7 +398,8 @@ func (m Model) nodeLine(r row, nameColW, refW int) string {
 	name := ansi.Truncate(s.Name, max(nameW-len(count), 1), "…")
 	nameCell := seg(textColor, name) + seg(t.Muted, count) + pad(nameW-lipgloss.Width(name+count))
 
-	// status: the most severe issue as a word, "+n" for further issues
+	// status: the most severe issue as a word, "+n" for further issues;
+	// a muted "in sync" without issues, so an empty cell never looks broken
 	var status string
 	switch {
 	case s.Err != nil:
@@ -410,6 +411,8 @@ func (m Model) nodeLine(r row, nameColW, refW int) string {
 		if len(issues) > 1 {
 			status += seg(t.Muted, fmt.Sprintf(" +%d", len(issues)-1))
 		}
+	default:
+		status = seg(t.Muted, theme.InSync)
 	}
 	if k, worst := s.HiddenIssues(); collapsed && k > 0 {
 		if status != "" {