feat: enhance evobgp with new command-line tools for bundle management, including pull, verify, and apply functionalities. Update go.mod to include necessary dependencies and complete todos in architecture plan for improved observability and deployment practices.

internal/platform/platform.go

@@ -0,0 +1,16 @@
+// Package platform groups cross-cutting runtime concerns (logging hooks, build/service identity).
+// Metrics and HTTP middleware live in internal/observability for now.
+package platform
+
+import (
+	"os"
+	"strings"
+)
+
+// ServiceName returns EVOBGP_SERVICE or defaultName when unset.
+func ServiceName(defaultName string) string {
+	if v := strings.TrimSpace(os.Getenv("EVOBGP_SERVICE")); v != "" {
+		return v
+	}
+	return defaultName
+}