feat: пример конфига, README; чистка и тесты BuildNotifiers

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

notifier_test.go

@@ -91,3 +91,58 @@ func TestHandlerSendError(t *testing.T) {
 		t.Fatalf("expected 502, got %d", rec.Code)
 	}
 }
+
+func TestBuildNotifiersEmpty(t *testing.T) {
+	n, err := BuildNotifiers(&Config{})
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	if len(n) != 0 {
+		t.Fatalf("expected empty map, got %d", len(n))
+	}
+}
+
+func TestBuildNotifiersPachcaMissingURL(t *testing.T) {
+	_, err := BuildNotifiers(&Config{Pachca: &ConfigPachca{}})
+	if err == nil {
+		t.Fatal("expected error for empty webhook_url")
+	}
+}
+
+func TestBuildNotifiersEmailNoRecipients(t *testing.T) {
+	_, err := BuildNotifiers(&Config{Email: &ConfigEmail{
+		SMTPAddr: "smtp.example.com:587",
+		From:     "logger@example.com",
+		To:       nil,
+	}})
+	if err == nil {
+		t.Fatal("expected error for zero recipients")
+	}
+}
+
+func TestBuildNotifiersEmailBadSMTPAddr(t *testing.T) {
+	_, err := BuildNotifiers(&Config{Email: &ConfigEmail{
+		SMTPAddr: "no-port",
+		From:     "logger@example.com",
+		To:       []string{"a@example.com"},
+	}})
+	if err == nil {
+		t.Fatal("expected error for smtp_addr without port")
+	}
+}
+
+func TestBuildNotifiersEmailOK(t *testing.T) {
+	n, err := BuildNotifiers(&Config{Email: &ConfigEmail{
+		SMTPAddr: "smtp.example.com:587",
+		Username: "u",
+		Password: "p",
+		From:     "logger@example.com",
+		To:       []string{"a@example.com"},
+	}})
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	if _, ok := n["email"]; !ok {
+		t.Fatal("email notifier not built")
+	}
+}