feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

app/models/telegram_bot_test.go

@@ -0,0 +1,24 @@
+package models_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"rsgit.ru/rsmon/rsmon/app/models"
+)
+
+func TestTelegramBotCurrentStatusMarksStaleOffline(t *testing.T) {
+	models.Drop()
+	models.Migrate()
+
+	seen := time.Now().Add(-3 * time.Minute)
+	status := models.TelegramBotStatus{Name: models.TelegramBotStatusMain, Online: true, LastSeen: &seen}
+	require.NoError(t, models.DB().Create(&status).Error)
+
+	got, err := models.TelegramBotCurrentStatus()
+	require.NoError(t, err)
+	assert.False(t, got.Online)
+}