Stabilize packaging and scheduler storage

internal/core/scheduler_test.go

@@ -0,0 +1,29 @@
+package core
+
+import (
+	"testing"
+	"time"
+)
+
+func TestNextRunTimeSupportsEvery(t *testing.T) {
+	from := time.Date(2026, 6, 14, 12, 0, 0, 0, time.UTC)
+	next, ok := nextRunTime("@every 10s", from)
+	if !ok {
+		t.Fatal("expected @every schedule to parse")
+	}
+	if want := from.Add(10 * time.Second); !next.Equal(want) {
+		t.Fatalf("expected %s, got %s", want, next)
+	}
+}
+
+func TestNextRunTimeSupportsCron(t *testing.T) {
+	from := time.Date(2026, 6, 14, 12, 3, 0, 0, time.UTC)
+	next, ok := nextRunTime("*/5 * * * *", from)
+	if !ok {
+		t.Fatal("expected cron schedule to parse")
+	}
+	want := time.Date(2026, 6, 14, 12, 5, 0, 0, time.UTC)
+	if !next.Equal(want) {
+		t.Fatalf("expected %s, got %s", want, next)
+	}
+}