Fix interval end event trigger

main.go

@@ -147,8 +147,6 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		// Handle timer update for each second
 		m.remaining -= time.Second
 		if m.remaining < 0 {
-			m.runCommands(m.onIntervalEnd)
-
 			if m.isFocus {
 				// Focus period ends, switch to break
 				m.isFocus = false
@@ -162,6 +160,7 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 				// Break ends, switch back to focus or next interval
 				m.isFocus = true
 				m.intervalNum++
+				m.runCommands(m.onIntervalEnd)
 				if m.intervalNum > m.intervals {
 					// All intervals completed
 					return m, tea.Quit