​Build: Implement rate limiting and circuit breaker for API and RPC services.​​ (#3572)

* feat: implement ratelimit and circuitbreaker in middleware.

* ​Build: Implement rate limiting and circuit breaker for API and RPC services.​​

* revert change.

* update ratelimiter and circuitbreaker config.

* update tools to openimsdk tools

config/openim-rpc-third.yml

@@ -17,6 +17,22 @@ prometheus:
   # It will only take effect when autoSetPorts is set to false.
   ports:
 
+ratelimiter:
+  # Whether to enable rate limiting
+  enable: false
+  # WindowSize defines time duration per window
+  window: 20s
+  # BucketNum defines bucket number for each window
+  bucket: 500
+  # CPU threshold; valid range 0–1000 (1000 = 100%)
+  cpuThreshold: 850
+
+circuitBreaker:
+  enable: false
+  window: 5s            # Time window size (seconds)
+  bucket: 100            # Number of buckets
+  success: 0.6          # Success rate threshold (0.6 means 60%)
+  request: 500 # Request threshold; circuit breaker evaluation occurs when reached
 
 object:
   # Use MinIO as object storage, or set to "cos", "oss", "kodo", "aws", while also configuring the corresponding settings