feat(server): запуск планировщика, /metrics, graceful shutdown

internal/notify/dispatch.go

@@ -2,7 +2,9 @@ package notify
 
 import (
 	"context"
+	"encoding/json"
 	"errors"
+	"fmt"
 	"net/http"
 	"time"
 
@@ -76,3 +78,24 @@ func (d *Dispatcher) Send(ctx context.Context, projectID uuid.UUID, ev Event) er
 	}
 	return errors.Join(errs...)
 }
+
+// SendTest sends a single synthetic Event directly through the Notifier for
+// channelType, bypassing project/channel lookup entirely. It satisfies
+// api.TestSender and backs POST /channels/{cid}/test, letting a user verify
+// a channel's bot_token/chat_id or webhook URL works before enabling the
+// schedule — the api layer resolves the channel and decrypts its secret; this
+// method only performs the actual delivery attempt.
+func (d *Dispatcher) SendTest(ctx context.Context, channelType string, config json.RawMessage, secret string) error {
+	n, ok := d.byType[channelType]
+	if !ok {
+		return fmt.Errorf("notify: unknown channel type %q", channelType)
+	}
+	ev := Event{
+		Project: "test",
+		Domain:  "test",
+		Status:  "test",
+		Summary: "test notification",
+		At:      time.Now(),
+	}
+	return n.Send(ctx, config, secret, ev)
+}