✨ Add repository guidelines and enhance documentation for project structure, build commands, coding standards, and testing practices. Introduce AGENTS.md for contributor guidance, update README.md to reference new guidelines, and improve configuration documentation for NATS modes. Update Makefile and Taskfile with clearer run commands and requirements for development and production modes. Add production deployment guide and improve logging configuration for better observability.

internal/adapter/dto/telegram_test.go

@@ -0,0 +1,34 @@
+package dto
+
+import "testing"
+
+func TestNewParsedTelegramDefaults(t *testing.T) {
+	pt := NewParsedTelegram()
+
+	if pt == nil {
+		t.Fatal("expected NewParsedTelegram to return a non-nil pointer")
+	}
+
+	if pt.Parsed {
+		t.Fatalf("expected Parsed to be false, got %v", pt.Parsed)
+	}
+
+	if pt.Status != MessageStatusUnknown {
+		t.Fatalf("expected default status %q, got %q", MessageStatusUnknown, pt.Status)
+	}
+}
+
+func TestMessageStatusStringValues(t *testing.T) {
+	cases := map[MessageStatus]string{
+		MessageStatusUnknown:     "unknown",
+		MessageStatusParsed:      "parsed",
+		MessageStatusHeaderError: "header_error",
+		MessageStatusBodyError:   "body_error",
+	}
+
+	for status, want := range cases {
+		if string(status) != want {
+			t.Fatalf("expected %q for status %v, got %q", want, status, status)
+		}
+	}
+}