init: hgmj server initial commit

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

app/router/analytics_test.go

@@ -0,0 +1,18 @@
+package router
+
+import (
+	"testing"
+
+	"github.com/gin-gonic/gin"
+)
+
+func TestVIPCardAnalyticsRoute(t *testing.T) {
+	engine := gin.New()
+	analyticsRouter(engine.Group("/api/app"))
+	for _, route := range engine.Routes() {
+		if route.Method == "POST" && route.Path == "/api/app/analytics/events" {
+			return
+		}
+	}
+	t.Fatal("POST /api/app/analytics/events is not registered")
+}