add realworld design

README.md

@@ -12,3 +12,28 @@ flowchart LR
 
     VM -->|query| GF[Grafana]
 ```
+
+
+# 实际
+
+
+```mermaid
+flowchart LR
+    SDK[Python SDK] -->|logs / metrics + telemetry token| GW[Gateway]
+
+    subgraph GWBox[Gateway]
+        AUTH[Auth 鉴权]
+        RL[Rate Limit 限流]
+        AUTH --> RL
+    end
+
+    GW --> AUTH
+    RL -->|logs / metrics| FB[Fluent Bit]
+
+    FB -->|logs| VLA[vlogagent]
+    VLA -->|logs| VL[VictoriaLogs]
+
+    FB -->|metrics| VM[VictoriaMetrics]
+
+    VM -->|query| GF[Grafana]
+```