fix(cron): ensure reminders keep delivery channel target

pkg/tools/remind_test.go

@@ -0,0 +1,39 @@
+package tools
+
+import (
+	"context"
+	"path/filepath"
+	"testing"
+
+	"clawgo/pkg/cron"
+)
+
+func TestRemindTool_UsesToolContextForDeliveryTarget(t *testing.T) {
+	storePath := filepath.Join(t.TempDir(), "jobs.json")
+	cs := cron.NewCronService(storePath, nil)
+	tool := NewRemindTool(cs)
+	tool.SetContext("telegram", "chat-123")
+
+	_, err := tool.Execute(context.Background(), map[string]interface{}{
+		"message":   "喝水",
+		"time_expr": "10m",
+	})
+	if err != nil {
+		t.Fatalf("Execute returned error: %v", err)
+	}
+
+	jobs := cs.ListJobs(true)
+	if len(jobs) != 1 {
+		t.Fatalf("expected 1 job, got %d", len(jobs))
+	}
+
+	if !jobs[0].Payload.Deliver {
+		t.Fatalf("expected deliver=true")
+	}
+	if jobs[0].Payload.Channel != "telegram" {
+		t.Fatalf("expected channel telegram, got %q", jobs[0].Payload.Channel)
+	}
+	if jobs[0].Payload.To != "chat-123" {
+		t.Fatalf("expected to chat-123, got %q", jobs[0].Payload.To)
+	}
+}